Single-walled Patents (Class 977/750)
Cross-Reference Art Collections
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Publication number: 20120202067Abstract: A composite particle is disclosed. The composite particle includes a micron diamond particle. The composite particle also includes a nanoparticle, the nanoparticle attached to a surface of the micron diamond particle by an attachment comprising a covalent bond or an intermolecular force, or a combination thereof. A method of making a composite particle is also disclosed. The method includes providing a micron diamond particle. The method also includes providing a nanoparticle and attaching the nanoparticle to a surface of the micron diamond particle by an attachment comprising a covalent bond or an intermolecular force, or a combination thereof.Type: ApplicationFiled: February 4, 2011Publication date: August 9, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Soma Chakraborty, Gaurav Agrawal
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Publication number: 20120194932Abstract: This invention concerns a polymer coating composition for use as non-focal optical power limiting dye containing polymeric materials. This composition contains: (1) one or more Modified Polymers comprising a Polymer, such as a hyperbranched polymer family, especially HB—PCS, HB—PU, HB—PUSOX or PC with one or more of: a) reverse saturable dye (RSA), b) multi-photon absorption dye (MPA), c) an azo dye, or d) absorption dye, which dye is chemically bonded to the pendant groups of the Polymer (along its chain and/or termini) or which forms a part of the backbone of the Polymer; (2) carbon nanotubes (CNT) as optical power limiters (OPL); and (3) a self-focusing component. This Modified Polymer composition contains the dye incorporated into the polymer chain backbone or chemically bonded to the terminal groups at the ends or along the chain of the polymer, which provides efficient protection from laser beam damage along with its self-focusing mechanism.Type: ApplicationFiled: September 22, 2010Publication date: August 2, 2012Applicant: OXAZOGEN, INC.Inventors: Abhijit Sarkar, Petar R. Dvornic, James P. Godschalx
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Publication number: 20120196146Abstract: One embodiment is a gas turbine engine component including a metal foam nanofiber composite. Another embodiment is a gas turbine engine component including a ceramic foam nanofiber composite. Other embodiments include unique gas turbine engine components including foam nanofiber composites.Type: ApplicationFiled: December 24, 2011Publication date: August 2, 2012Inventor: Edward Claude Rice
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Publication number: 20120192931Abstract: Disclosed is a carbonaceous nanocomposite including: a substrate; a graphene sheet formed on a top surface of the substrate in parallel with the substrate; and a carbonaceous nanomaterial provided on another surface of the graphene sheet, the nanomaterial having an aspect ratio of 2 to 75,000 to make a predetermined angle with the graphene sheet. The carbonaceous nanocomposite according to the present disclosure has excellent adhesivity to the substrate and can be attached to the substrate without undergoing a pasting process. Since a two-directional current flow is generated, the electrical resistance of the graphene and carbon nanotube is considerably reduced. In addition, the graphene allows the carbon nanotube to have a high current density and a high specific surface area, thereby accelerating a redox reaction. The excellent heat-radiating property of the graphene sheet allows fast transfer of heat generated in the carbon nanotube to outside, thereby avoiding degradation of the carbon nanotube.Type: ApplicationFiled: May 20, 2009Publication date: August 2, 2012Inventors: Min-Hyon Jeon, Hyon-Kwang Choi, Sook-Hyun Hwang, Hyun-Kook Kim
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Patent number: 8231945Abstract: Method for making a low cost, light weight impact deflecting material, comprising directionally aligned single walled carbon nanotubes in an epoxy resin composition, that is near impervious to bullets fired at close range at all angles of incidence, that does not deteriorate upon abrasion or when exposed to wide ranges of temperature and humidity, and that when used to construct a protective shield for a body armor vest protects the wearer from blunt trauma effects.Type: GrantFiled: July 31, 2007Date of Patent: July 31, 2012Assignee: Intelligent Textiles, Inc.Inventors: Graham E. Gintz, Christopher J Gintz, Timothy J. Imholt, David L. Allara
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Publication number: 20120187379Abstract: A thin film transistor has a dual semiconducting layer comprising two semiconducting sublayers. The first sublayer comprises a polythiophene and carbon nanotubes. The second sublayer comprises the polythiophene and has no carbon nanotubes. Devices comprises the dual semiconducting layer exhibit high mobility.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Applicant: XEROX CORPORATIONInventors: Yiliang Wu, Ping Liu, Nan-Xing Hu
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Publication number: 20120187380Abstract: A thin film transistor has a semiconducting layer comprising a polythiophene and carbon nanotubes. The semiconducting layer exhibits high mobility and high current on/off ratio.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Applicant: XEROX CORPORATIONInventor: Yiliang Wu
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Publication number: 20120189846Abstract: A composition includes a carbon nanotube (CNT)-infused ceramic fiber material, wherein the CNT-infused ceramic fiber material includes: a ceramic fiber material of spoolable dimensions; and carbon nanotubes (CNTs) bonded to the ceramic fiber material. The CNTs are uniform in length and uniform in distribution. A continuous CNT infusion process includes (a) disposing a carbon-nanotube forming catalyst on a surface of a ceramic fiber material of spoolable dimensions; and (b) synthesizing carbon nanotubes on the ceramic fiber material, thereby forming a carbon nanotube-infused ceramic fiber material.Type: ApplicationFiled: November 2, 2009Publication date: July 26, 2012Applicant: Lockheed Martin CorporationInventors: Tushar K. SHAH, Slade H. GARDNER, Mark R. ALBERDING, Harry C. MALECKI
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Patent number: 8227799Abstract: The present disclosure provides a thin film transistor which includes a source electrode, a drain electrode, a semiconducting layer, an insulating layer and a gate electrode. The drain electrode is spaced apart from the source electrode. The semiconducting layer is electrically connected with the source electrode and the drain electrode. The gate electrode is insulated from the source electrode, the drain electrode, and the semiconducting layer by the insulating layer. At least one of the gate electrode, the drain electrode, the source electrode includes a carbon nanotube composite layer.Type: GrantFiled: December 31, 2009Date of Patent: July 24, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Kai Liu, Chen Feng, Kai-Li Jiang, Liang Liu, Shou-Shan Fan
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Publication number: 20120182666Abstract: The invention is directed, in an embodiment, to an inherently conductive polymer comprising a conductive polymer, carbon nanotubes, and dinonylnaphthalene sulfonic acid. The conductive polymer may comprise polyaniline. The invention is also directed to polymeric films and supercapacitors comprising the inherently conductive polymer.Type: ApplicationFiled: September 30, 2011Publication date: July 19, 2012Applicant: LUMIMOVE, INC. D/B/A CROSSLINKInventors: Patrick J. Kinlen, June-Ho Jung, Young-Gi Kim, Joseph Mbugua, Eve F. Fabrizio
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Publication number: 20120183770Abstract: The present invention relates to the exfoliation and dispersion of carbon nanotubes resulting in high aspect ratio, surface-modified carbon nanotubes that are readily dispersed in various media. A method is disclosed for their production in high yield. Further modifications by surface active or modifying agents are also disclosed. Application of the carbon nanotubes of this invention as composites with materials such as elastomers, thermosets and thermoplastics are also described.Type: ApplicationFiled: June 20, 2011Publication date: July 19, 2012Inventors: Clive P. Bosnyak, Kurt W. Swogger
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Publication number: 20120175571Abstract: This invention concerns a polymer coating material composition (PCM) comprising as components a Polymer Matrix, carbon nanotubes (CNT) as optical power limiters (OPL), and carbon-rich molecules. One aspect of the invention is where the Polymer Matrix is a hyperbranched polymer, such as a hyperbranched polycarbosiloxane polymer. Another aspect of the invention is where the CNT is a short multiwall carbon nanotube (sMWNT). A further aspect of the invention is where the carbon-rich molecules are triethoxysilyl anthracene derivatives. The composition wherein the ratio in weight percent of Polymer Matrix to CNT to carbon-rich molecule is from 94:3:3 to 99.8:0.1:0.1. The composition can further contain one or more of multi-photon absorbers (MPA) chromophores or reverse saturable absorbers (RSA) chromophores. These compositions can be used as: a) a film, b) a coating, c) a liquid, d) a solution, or e) a sandwiched film between two transparent substrates.Type: ApplicationFiled: July 20, 2011Publication date: July 12, 2012Applicant: OXAZOGEN, INC.Inventor: Abhijit Sarkar
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Publication number: 20120177934Abstract: The invention relates to a method for producing stretchable electrodes, where electrically conductive carbon particles, especially carbon nanotubes, are introduced into a coating comprising an elastomer. In said method, a preparation of non-aggregated carbon particles having an average particle diameter ranging from=0.3 nm to=3000 nm in a solvent acts upon a coating comprising an elastomer. The solvent can cause a coating comprising an elastomer to swell. The duration of the action is calculated so as to be insufficient to dissolve the elastomer. Optionally, another electrically conductive layer is applied. The invention also relates to a stretchable electrode obtained in said manner and to the use thereof.Type: ApplicationFiled: January 14, 2010Publication date: July 12, 2012Applicant: Bayer MaterialScience AG Law and PatentsInventors: Stephanie Vogel, Joachim Wagner, Christel Fussangel
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Publication number: 20120178653Abstract: A thing or fluid, e.g., but not limited to a fraccing fluid, bodily fluid, or slurry with drill cuttings, the fluid with an identifier, the identifier including a unique identifying signature including nanomaterial. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).Type: ApplicationFiled: January 3, 2012Publication date: July 12, 2012Inventor: Guy L. McClung, III
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Patent number: 8216364Abstract: Direct resistive heating is used to grow nanotubes out of carbon and other materials. A growth-initiated array of nanotubes is provided using a CVD or ion implantation process. These processes use indirect heating to heat the catalysts to initiate growth. Once growth is initiated, an electrical source is connected between the substrate and a plate above the nanotubes to source electrical current through and resistively heat the nanotubes and their catalysts. A material source supplies the heated catalysts with carbon or another material to continue growth of the array of nanotubes. Once direct heating has commenced, the source of indirect heating can be removed or at least reduced. Because direct resistive heating is more efficient than indirect heating the total power consumption is reduced significantly.Type: GrantFiled: April 14, 2008Date of Patent: July 10, 2012Assignee: Raytheon CompanyInventors: Delmar L. Barker, Mead M. Jordan, William R. Owens
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Publication number: 20120171107Abstract: The present invention relates to a method of forming single-walled carbon nanotubes. The method comprises contacting a gaseous carbon source with mesoporous TUD-1 silicate at suitable conditions. The mesoporous TUD-1 silicate comprises a metal of groups 3-13 of the Periodic Table of the Elements.Type: ApplicationFiled: July 5, 2010Publication date: July 5, 2012Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Yuan Chen, Yanhui Yang
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Publication number: 20120168314Abstract: Systems and methods for treating a fluid by passing fluid through a treatment structure, the fluid containing undesirable living things, the treatment structure containing electrically conductive nanomaterial with silver, flowing an electric current in the fluid in the treatment structure via the electrically conductive nanomaterial with silver or silver material to kill undesirable living things in the treatment structure, and killing undesirable things in the treatment structure.Type: ApplicationFiled: January 6, 2012Publication date: July 5, 2012Inventor: Guy L. McClung, III
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Publication number: 20120171093Abstract: The present invention generally relates to compositions comprising and methods for forming functionalized carbon-based nanostructures.Type: ApplicationFiled: November 3, 2011Publication date: July 5, 2012Applicant: Massachusetts Institute of TechnologyInventors: Timothy M. Swager, William R. Collins, Wiktor Lewandowski, Ezequiel Schmois, Stefanie Sydlik, Joseph Walish, John B. Goods
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Publication number: 20120172495Abstract: Underfill materials include inorganic fill materials (e.g., functionalized CNT's, organo clay, ZnO) that are functionalized reactive with other organic constituents (e.g., organics with epoxy groups, amine groups, or PMDA). The underfill materials also beneficially include polyhedral oligomeric silsesquioxane and/or dendritic siloxane groups that are functionalized with a reactive group (e.g., glycidyl) that reacts with other components of an epoxy system of the underfill.Type: ApplicationFiled: September 14, 2010Publication date: July 5, 2012Applicant: NAMICS CORPORATIONInventors: Pawel Czubarow, Osamu Suzuki, Toshiyuki Sato
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Publication number: 20120171574Abstract: A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound.Type: ApplicationFiled: January 3, 2011Publication date: July 5, 2012Inventors: Aruna Zhamu, ChenGuang Liu, David Neff, Bor Z. Jang, Zhenning Yu
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Patent number: 8211958Abstract: The present disclosure provides polyolefin blends and nanocomposites and methods for their production. In embodiments, a blend or nanocomposite of the present disclosure may include at least one polyolefin and at least one ionic liquid and/or one modified carbon nanofiller. In embodiments, the at least one modified carbon nanotube may be treated with at least one ionic compound.Type: GrantFiled: December 5, 2008Date of Patent: July 3, 2012Assignee: The Research Foundation of State University of New YorkInventors: Benjamin Chu, Benjamin S. Hsiao, Hongyang Ma, Nobuyuki Taniguchi
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Patent number: 8206624Abstract: A method for producing carbon nanotubes uses a polymer as a raw material to undergo in situ thermal decomposition. The method includes steps of mixing the polymer and metallic catalyst through a multiple heating stage process of in-situ thermal decomposition to carbonize the polymer and release carbon elements to produce carbon nanotubes. Advantages of the present invention include easy to prepare, low temperature in manipulation, low production cost, and high safety.Type: GrantFiled: February 7, 2009Date of Patent: June 26, 2012Assignee: National Chung Cheng UniversityInventors: Yuan-Yao Li, Chao-Wei Huang
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Publication number: 20120153262Abstract: A process for forming a functionalized sensor for sensing a molecule of interest includes providing at least one single or multi-wall carbon nanotube having a first and a second electrode in contact therewith on a substrate; providing a third electrode including a decorating material on the substrate a predetermined distance from the at least one single or multi-wall carbon nanotube having a first and a second electrode in contact therewith, wherein the decorating material has a bonding affinity for a bioreceptors that react with the molecule of interest; and applying a voltage to the third electrode, causing the decorating material to form nanoparticles of the decorating material on the at least one single or multi-wall carbon nanotube.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Inventors: Makarand Paranjape, Jianyun Zhou
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Publication number: 20120153236Abstract: The present invention relates to a method for producing flexible, stretchable transparent and highly electrically conducting hybrid polymer films comprising electrically conductive electrospun nanofibers embedded in solution cast dielectric polymer films. In one embodiment, the present invention utilizes an electrically conductive nanofiber, or nanofiber structure, that is embedded in a suitable polymer film. In one embodiment, the electrically conductive nanofiber, or nanofiber structure, can be electrospun from a suitable polymer solution that contains a suitable amount of, for example, at least one conductive material. In one embodiment, the flexible polymer film portion of the present invention can be formed from poly(methyl methacrylate) (PMMA) or polyimide.Type: ApplicationFiled: July 15, 2010Publication date: June 21, 2012Inventors: Mukerrem Cakmak, Wei Zhao, Baris Yalcin
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Publication number: 20120156124Abstract: The present disclosure provides for systems and methods for producing carbon nanotubes. More particularly, the present disclosure provides for improved systems and methods for producing single wall carbon nanotubes (SWNTs) by chemical vapor deposition (CVD) using a carbon source in the presence of a catalyst. In exemplary embodiments, the present disclosure provides for improved systems and methods for producing single wall carbon nanotubes (SWNTs) by chemical vapor deposition (CVD) using carbon monoxide (CO) disproportionation in the presence of a catalyst composition on a catalyst support material. In one embodiment, the present disclosure provides for systems and methods for producing single wall carbon nanotubes (SWNTs) by chemical vapor deposition (CVD) using carbon monoxide (CO) disproportionation with CO pressure from about 0.20 atm to about 1.0 atm in the presence of a cobalt/molybdenum catalyst composition on a magnesium oxide catalyst support.Type: ApplicationFiled: February 12, 2008Publication date: June 21, 2012Applicant: NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Amit Goyal, Iqbal Zafar
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Publication number: 20120145997Abstract: A hot filament chemical vapor deposition method has been developed to grow at least one vertical single-walled carbon nanotube (SWNT). In general, various embodiments of the present invention disclose novel processes for growing and/or producing enhanced nanotube carpets with decreased diameters as compared to the prior art.Type: ApplicationFiled: February 6, 2007Publication date: June 14, 2012Applicant: William Marsh Rice UniversityInventors: Robert H. Hauge, Ya-Qiong Xu
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Publication number: 20120148839Abstract: An atmosphere of a carbon source comprising an oxygenic compound is brought into contact with a catalyst with heating to yield single-walled carbon nanotubes. The carbon source comprising an oxygenic compound preferably is an alcohol and/or ether. The catalyst preferably is a metal. The heating temperature is preferably 500 to 1,500° C. The single-walled carbon nanotubes thus obtained contain no foreign substances and have satisfactory quality with few defects.Type: ApplicationFiled: February 17, 2012Publication date: June 14, 2012Inventors: Shigeo MARUYAMA, Masahito Yoshikawa
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Publication number: 20120148835Abstract: The present invention provides a hybrid conductive composite made from carbon nanotubes and poly(3,4-ethylenedioxythiophene)/poly(styrene-sulfonate) to reduce the surface resistivity of a transparent thermoplastic substrate. The inventive composites, which may find use in capacitive touch screen displays, require no special treatment or precautions, and are not limited by minimum or maximum component ratios. A wide variation the amounts of carbon nanotube and poly(3,4-ethylenedioxythiophene)/poly(styrene-sulfonate) allows a minimization of the adverse carbon nanotube effects on the composite transparency while producing a stable, low sheet resistance material.Type: ApplicationFiled: December 8, 2010Publication date: June 14, 2012Applicant: Bayer MaterialScience AGInventors: DENISE A. RADKOWSKI, John H. Ferguson, Robert F. Praino
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Publication number: 20120141678Abstract: Carbon nanotube inkjet solutions and methods for jetting are described.Type: ApplicationFiled: November 26, 2007Publication date: June 7, 2012Applicant: FUJIFILM DIMATIX, INC.Inventor: Jan Sumerel
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Publication number: 20120141543Abstract: Novel methods and compositions of nanocomposites are provided. One exemplary composition comprises a biocompatible polymer, such as polypropylene fumarate, and a carbon nanotube, such as a single walled carbon nanotube, an ultra-short carbon nanotube, or a substituted ultra-short carbon nanotube. An exemplary method comprises providing a biocompatible polymer and a carbon nanotube and combining a biocompatible polymer and a carbon nanotube to form a nanocomposite. Another exemplary method comprises providing a nanocomposite comprising a biocompatible polymer and a carbon nanotube and administering the composition to a subject.Type: ApplicationFiled: January 11, 2008Publication date: June 7, 2012Inventors: Balaji Sitharaman, Antonios G. Mikos, Lon J. Wilson, Xinfeng Shi
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Publication number: 20120135333Abstract: The invention relates to composite blend membranes formed from blends of one or more polyelectrolytes, and one or more types of nanoparticles. Preferably the blend also includes one or more fluoropolymers. The addition of the nanoparticles was found to enhance the conductivity and mechanical properties of the membranes.Type: ApplicationFiled: June 14, 2010Publication date: May 31, 2012Applicant: Arkema Inc.Inventors: James Carson Meredith, III, Pedro Jose Zapata, James T. Goldbach, David A. Mountz
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Publication number: 20120133247Abstract: There are provided a flexible nanocomposite generator and a method of manufacturing the same. A flexible nanocomposite generator according to the present invention includes a piezoelectric layer formed of a flexible matrix containing piezoelectric nanoparticles and carbon nanostructures; and electrode layers disposed on the upper and lower surfaces of both sides of the piezoelectric layer, in which according to a method for manufacturing a flexible nanocomposite generator according to the present invention and a flexible nanogenerator, it is possible to manufacture a flexible nanogenerator with a large area and a small thickness. Therefore, the nanogenerator may be used as a portion of a fiber or cloth. Accordingly, the nanogenerator according to the present invention generates power in accordance with bending of attached cloth, such that it is possible to continuously generate power in accordance with movement of a human body.Type: ApplicationFiled: November 30, 2011Publication date: May 31, 2012Inventors: Keon Jae Lee, Kwi-Il Park, Do Kyung Kim, Sang Ouk Kim, Geon-Tae Hwang
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Patent number: 8187703Abstract: The present invention is directed to methods of integrating carbon nanotubes into epoxy polymer composites via chemical functionalization of carbon nanotubes, and to the carbon nanotube-epoxy polymer composites produced by such methods. Integration is enhanced through improved dispersion and/or covalent bonding with the epoxy matrix during the curing process. In general, such methods involve the attachment of chemical moieties (i.e., functional groups) to the sidewall and/or end-cap of carbon nanotubes such that the chemical moieties react with either the epoxy precursor(s) or the curing agent(s) (or both) during the curing process. Additionally, in some embodiments, these or additional chemical moieties can function to facilitate dispersion of the carbon nanotubes by decreasing the van der Waals attractive forces between the nanotubes.Type: GrantFiled: September 3, 2009Date of Patent: May 29, 2012Assignee: William Marsh Rice UniversityInventors: Jiang Zhu, Valery N. Khabashesku, Haiqing Peng, Enrique V. Barrera, John L. Margrave, Mary Lou Margrave, legal representative
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Patent number: 8187565Abstract: The invention is directed to a method of positioning nanoparticles on a patterned substrate. The method comprises providing a patterned substrate with selectively positioned recesses, and applying a solution or suspension of nanoparticles to the patterned substrate to form a wetted substrate. A wiper member is dragged across the surface of the wetted substrate to remove a portion of the applied nanoparticles from the wetted substrate, and leaving a substantial number of the remaining portion of the applied nanoparticles disposed in the selectively positioned recesses of the substrate. The invention is also directed to a method of making carbon nanotubes from the positioned nanoparticles.Type: GrantFiled: February 8, 2010Date of Patent: May 29, 2012Assignee: International Business Machines CorporationInventors: Charles T. Black, Christopher B. Murray, Robert L. Sandstrom
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Patent number: 8187502Abstract: Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.Type: GrantFiled: July 25, 2007Date of Patent: May 29, 2012Assignee: Nantero Inc.Inventors: Rahul Sen, Ramesh Sivarajan, Thomas Rueckes, Brent M. Segal
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Patent number: 8183659Abstract: The present invention provides for nanostructures grown on a conducting or insulating substrate, and a method of making the same. The nanostructures grown according to the claimed method are suitable for interconnects and/or as heat dissipators in electronic devices.Type: GrantFiled: July 2, 2010Date of Patent: May 22, 2012Inventor: Mohammad Shafiqul Kabir
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Publication number: 20120122020Abstract: This invention provides an aligned single-layer carbon nanotube bulk structure, which comprises an assembly of a plurality of aligned single-layer carbon nanotube and has a height of not less than 10 ?m, and an aligned single-layer carbon nanotube bulk structure which comprises an assembly of a plurality of aligned single-layer carbon nanotubes and has been patterned in a predetermined form. This structure is produced by chemical vapor deposition (CVD) of carbon nanotubes in the presence of a metal catalyst in a reaction atmosphere with an oxidizing agent, preferably water, added thereto. An aligned single-layer carbon nanotube bulk structure, which has realized high purify and significantly large scaled length or height, its production process and apparatus, and its applied products are provided.Type: ApplicationFiled: December 22, 2011Publication date: May 17, 2012Inventors: Kenji HATA, Sumio IIJIMA, Motoo YUMURA, Don N. FUTABA
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Publication number: 20120119162Abstract: The present invention relates to coated fullerenes comprising a layer of at least one inorganic material covering at least a portion of at least one surface of a fullerene and methods for making. The present invention further relates to composites comprising the coated fullerenes of the present invention and further comprising polymers, ceramics, and/or inorganic oxides. A coated fullerene interconnect device where at least two fullerenes are contacting each other to form a spontaneous interconnect is also disclosed as well as methods of making. In addition, dielectric films comprising the coated fullerenes of the present invention and methods of making are further disclosed.Type: ApplicationFiled: October 11, 2011Publication date: May 17, 2012Applicants: NATCORE TECHNOLOGY INC., WILLIAM MARSH RICE UNIVERSITYInventors: Andrew R. Barron, Dennis J. Flood, Elizabeth Whitsitt
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Publication number: 20120118761Abstract: Disclosed is a method for measuring the concentration of a peroxide using a CNT sensor. The CNT sensor comprises a working electrode that is arranged on an insulating substrate, a monolayered carbon nano-tube that is contacted with the working electrode, a counter electrode, and a reference electrode. A sample is provided on the monolayered carbon nano-tube, and a potential difference is made between the working electrode and the counter electrode. In this manner, the concentration of the peroxide in the sample can be measured. The measurement method can be applied to clinical tests or the like.Type: ApplicationFiled: July 16, 2010Publication date: May 17, 2012Applicants: Health Sciences University of Hokkaido, National University Corporation Hokkaido UniversityInventors: Hitoshi Chiba, Sheiji Takeda, Atsushi Ishii, Motonori Nakamura
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Publication number: 20120119159Abstract: A bondable conductive ink comprising carbon nanotubes, larger diameter conductive particles having at least one dimension of at least 100 nanometers which are not carbon nanotubes, a polymer, and a solvent, and a method of producing this bondable conductive ink. The ink is highly suitable for producing circuit assemblies having non-conductive substrates upon which printed conductors, formed from the bondable conductive ink, may be easily and selectively interconnected to another circuit assembly device, and/or apparatus.Type: ApplicationFiled: January 24, 2012Publication date: May 17, 2012Inventor: Joel S. Douglas
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Patent number: 8177897Abstract: A phase change ink including (a) a phase change ink carrier and (b) a colorant comprising a carbon allotrope.Type: GrantFiled: November 17, 2008Date of Patent: May 15, 2012Assignee: Xerox CorporationInventors: James D. Mayo, Santokh Badesha
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Patent number: 8178203Abstract: This invention provides an aligned single-walled CNT aggregate comprising a substrate, fine particles of iron catalyst with a density of 1×1011 to 1×1014/cm2 disposed on an alumina co-catalyst above the substrate, and a plurality of single-walled CNTs grown from the fine particles of the iron catalyst, in which the plurality of single-walled CNTs have a specific surface area of 600 m2/g to 2600 m2/g, and a weight density from 0.002 g/cm3 to 0.2 g/cm3, and the alignment degree which satisfies a few of specific conditions. This invention also provides a bulk aligned single-walled carbon nanotube aggregate and a powdered aligned single-walled carbon nanotube aggregate.Type: GrantFiled: December 30, 2008Date of Patent: May 15, 2012Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Kenji Hata, Sumio Iijima, Motoo Yumura, Don N. Futaba
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Publication number: 20120112134Abstract: Provided area carbon nanotube composite material obtained by treating a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium under a sub-critical or super-critical condition of 50-400 atm, and a method for producing the same. More particularly, the method for producing a carbon nanotube composite material, includes: introducing a mixture including carbon nanotubes, at least one carbon compound other than carbon nanotubes and a dispersion medium into a preheating unit under a pressure of 1-400 atm to preheat the mixture; treating the preheated mixture under a sub-critical or super-critical condition of 50-400 atm; cooling and depressurizing the resultant product to 0-1000 C and 1-10 atm; and recovering the cooled and depressurized product. Provided also is an apparatus for producing a carbon nanotube composite material in a continuous manner.Type: ApplicationFiled: June 30, 2010Publication date: May 10, 2012Applicant: HANWHA CHEMICAL CORPORATIONInventors: Man Woo Jung, Seong Yun Jeon, Seong Cheol Hong, Joo Hee Han, Joo Seok Oh, Jin Seo Lee, Seung Hoe Do
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Publication number: 20120111599Abstract: Systems and methods for forming conductive materials. The conductive materials can be applied using a printer in single or multiple passes onto a substrate. The conductive materials are composed of electrical conductors such as carbon nanotubes (including functionalized carbon nanotubes and metal-coated carbon nanotubes), grapheme, a polycyclic aromatic hydrocarbon (e.g. pentacene and bisperipentacene), metal nanoparticles, an inherently conductive polymer (ICP), and combinations thereof. Once the conductive materials are applied, the materials are dried and sintered to form adherent conductive materials on the substrate. The adherent conductive materials can be used in applications such as damage detection, particle removal, and smart coating systems.Type: ApplicationFiled: October 21, 2011Publication date: May 10, 2012Applicant: United States Of America as Represented by the Administrator of the National Aeronautics and SpacInventors: Luke B. Roberson, Martha K. Williams, Tracy L. Gibson, LaNetra C. Tate, Sarah J. Snyder, Craig R. Fortier
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Publication number: 20120115049Abstract: An embodiment of the invention is an air cathode having a porous membrane with at least one hydrophobic surface that contacts a conductive catalytic film that comprises single walled carbon nanotubes (SWNTs) where the nanotubes are in intimate electrical contact. The conductive film can include fullerenes, metals, metal alloys, metal oxides, or electroactive polymers in addition to the SWNTs. In other embodiments of the invention the air cathode is a component of a metal-air battery or a fuel cell.Type: ApplicationFiled: April 22, 2010Publication date: May 10, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Andrew Gabriel Rinzler, Rajib Kumar Das, John R. Reynolds, Ryan M. Walczak
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Publication number: 20120114549Abstract: A method for separating metal carbon nanotubes with a single graphene layer (m-SWNT) and semiconductor nanotubes with a single graphene layer (sc-SWNT) is provided. The method may comprise a step for grafting, notably by radical chemical grafting, a diazonium salt derivative on a mixture of m-SWNTs and sc-SWNTs so as to obtain a mixture of grafted m-SWNTs, and non-grafted sc-SWNTs, whereby the grafted m-SWNTs and the non-grafted sc-SWNTs separate because of differential chemical and/or physical properties caused by said grafting. In addition, a kit for separating m-SWNTs and sc-SWNTs is provided.Type: ApplicationFiled: February 8, 2010Publication date: May 10, 2012Applicant: Commissariat a l"energie atomique et aux energies alternativesInventor: Pascale Chenevier
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Publication number: 20120111614Abstract: A multifunctional paradigm is disclosed of “Strength Power to Weight”. Carbon tow is measured in individual fiber count per cross section. In terms of electrical conductivity, the individual fiber count total is analogous to a cross sectional wire gauge for corresponding metal (i.e. gold, copper, aluminum, silver, etc.). Tow segments are constructed/assembled/situated as being part of an electric circuit as well as being part of a laminated composite structure. For the electrical circuit, necessary electrical components are fixed to the carbon tow conductor using any of “soldering” (adhesive), “welding” (cohesion), or held in contact with mechanical force. The circuit is wetted out, allowed to cure (either before or along with the rest of the background laminate), and ultimately becomes a heterogeneous extremely light solid that conducts electrical power and provides additional structure to the composite as well.Type: ApplicationFiled: November 10, 2010Publication date: May 10, 2012Inventor: James J. Free
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Publication number: 20120107178Abstract: A biosensor includes a plurality of electrodes and a receptor. The plurality of electrodes comprises a plurality of carbon nanotubes. The receptor are located between the plurality of electrodes and electrically connected to the plurality of carbon nanotubes of the plurality of electrodes. In addition, the receptor reacts to a measured object to lead current variation which is transmitted by the plurality of electrodes.Type: ApplicationFiled: January 18, 2011Publication date: May 3, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: XUE-SHEN WANG, QUN-QING LI, SHOU-SHAN FAN
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Publication number: 20120107590Abstract: A nanomatrix carbon composite is disclosed. The nanomatrix carbon composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The composite also includes a plurality of dispersed particles comprising a particle core material that comprises an allotrope of carbon dispersed in the nanomatrix and a bond layer extending throughout the nanomatrix between the dispersed particles. The nanomatrix carbon composites are uniquely lightweight, high-strength, high thermal conductivity materials that also provide uniquely selectable and controllable corrosion properties, including very rapid corrosion rates, useful for making a wide variety of degradable or disposable articles, including various downhole tools and components.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Inventors: Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal
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Publication number: 20120103815Abstract: Systems and methods for treating a fluid by passing fluid through a treatment structure, the fluid containing undesirable living things, the treatment structure containing electrically conductive nanomaterial with silver, flowing an electric current in the fluid in the treatment structure via the electrically conductive nanomaterial with silver or silver material to kill undesirable living things in the treatment structure, and killing undesirable things in the treatment structure.Type: ApplicationFiled: October 21, 2011Publication date: May 3, 2012Inventor: Guy L. McClung, III