Abstract: A method of synthesizing a flexible and binder-free electrode material for lithium-ion batteries using multi-walled carbon nanotubes (MWCNTs) on copper (Cu) foil directly. The growth of MWCNTs is carried out by plasma-enhanced chemical vapor deposition (PECVD) using a sputter-coated chromium (Cr) barrier layer and a nickel (Ni) catalyst on Cu foil. The resultant electrode material can be used as a binder-free and flexible anode for lithium-ion batteries.

Abstract: A method of synthesizing a flexible and binder-free electrode material for lithium-ion batteries using multi-walled carbon nanotubes (MWCNTs) on copper (Cu) foil directly. The growth of MWCNTs is carried out by plasma-enhanced chemical vapor deposition (PECVD) using a sputter-coated chromium (Cr) barrier layer and a nickel (Ni) catalyst on Cu foil. The resultant electrode material can be used as a binder-free and flexible anode for lithium-ion batteries.

Abstract: The method for synthesizing zinc oxide nanoroses is a green, fast, and cost-effective approach for the growth of ZnO nanoroses in which a sheet of vertically aligned and interconnected sheet of ZnO nanospheres are grown on a titanium buffer layer coated on a silicon substrate, the nanospheres mimicking a rose-like structure. According to the method, a film of titanium is first deposited on a Si/SiO2 substrate by an e-beam evaporation method. Then, the titanium film coated substrate is suspended upside down in a solution of zinc nitrate (0.011 M-0.055M) in an aqueous solution of hexamethylenetetramine (0.011 M-0.055M) and heated to 50-100° C. with vigorous stirring for 60-180 min. The resulting ZnO nanoroses are washed with de-ionized water and air-dried for 12-24 hours. The ZnO nanoroses are suitable for use for various device applications in electronics and in biomedical systems.

Abstract: The method for synthesizing zinc oxide nanoroses is a green, fast, and cost-effective approach for the growth of ZnO nanoroses in which a sheet of vertically aligned and interconnected sheet of ZnO nanospheres are grown on a titanium buffer layer coated on a silicon substrate, the nanospheres mimicking a rose-like structure. According to the method, a film of titanium is first deposited on a Si/SiO2 substrate by an e-beam evaporation method. Then, the titanium film coated substrate is suspended upside down in a solution of zinc nitrate (0.011 M-0.055M) in an aqueous solution of hexamethylenetetramine (0.011 M-0.055M) and heated to 50-100° C. with vigorous stirring for 60-180 min. The resulting ZnO nanoroses are washed with de-ionized water and air-dried for 12-24 hours. The ZnO nanoroses are suitable for use for various device applications in electronics and in biomedical systems.

Abstract: The present invention generally relates to a process for synthesizing rare earth-doped cobalt-chromite (CoCr2-xRxO4) pigments for capacitive and resistive humidity sensor applications, the process includes of crushing individually metal nitrates and rare earth material (R) using a hydraulic press to form a powder of metal nitrates and rare earth nitrates; dissolving the powder of metal nitrates and rare earth material (R) with fuels in 30 milliliters of distilled water with constant stirring using a magnetic stirrer to form a green color solution; heating the green color solution at 425 degrees Celsius for half an hour to obtain a green powder; extracting and grinding the green powder in an agate mortar for 1 hour to form a fine green pigment; and annealing the fine green pigment in a muffle furnace for two hours at a temperature of 500-600 degrees to remove organic residue and obtain rare earth-doped cobalt-chromite (CoCr2-xRxO4) pigments.

Abstract: A method of forming one-dimensional metal oxide nanostructures includes forming a TiN film on a substrate to provide a TiN-coated substrate; providing an aqueous mixture including hexamethylenetetramine and a metal nitrate, contacting the TiN-coated substrate with the aqueous mixture such that the TiN film on the substrate is in the aqueous mixture, and heating the aqueous mixture at a temperature ranging from about 50° C. to about 100° C. for a period of time ranging from about 60 minutes to about 180 minutes to form the metal oxide nanostructures. The method offers a low-temperature approach for the growth of metal oxide nanostructures. In an embodiment, the metal oxide is zinc oxide (ZnO) and the metal nitrate is zinc nitrate. In an embodiment the substrate is a Si/SiO2 substrate. In an embodiment, the metal oxide nanostructures include one-dimensional nanostructures, such as nanorods.

Abstract: The present invention generally relates to a microwave-assisted pyrolysis system comprised of a microwave chamber body (102); a black carbon platform (104) disposed inside the microwave chamber body for irradiating microwave radiation and absorbing microwave energy; a quartz microwave reactor (106) placed on the black carbon platform for receiving chemical precursor(s) and applying microwave irradiation for absorption of microwave energy thereby heating the black carbon platform for microwave-assisted pyrolysis of the received chemical precursor(s); a cooling unit (108) employed for regulating and maintaining a user-defined temperature level upon detecting the temperature inside the microwave reactor using a temperature sensor (110), if the temperature exceeds the optimum level, wherein the optimum temperature is defined on the type of precursors undergoing pyrolysis; and wherein if the heating temperature is raised extremely high, the cooling unit inside the microwave machine gets activated to bring down the

Abstract: The present invention generally relates to a process for synthesizing rare earth-doped cobalt-chromite (CoCr2-xRxO4) pigments for capacitive and resistive humidity sensor applications, the process includes of crushing individually metal nitrates and rare earth material (R) using a hydraulic press to form a powder of metal nitrates and rare earth nitrates; dissolving the powder of metal nitrates and rare earth material (R) with fuels in 30 milliliters of distilled water with constant stirring using a magnetic stirrer to form a green color solution; heating the green color solution at 425 degrees Celsius for half an hour to obtain a green powder; extracting and grinding the green powder in an agate mortar for 1 hour to form a fine green pigment; and annealing the fine green pigment in a muffle furnace for two hours at a temperature of 500-600 degrees to remove organic residue and obtain rare earth-doped cobalt-chromite (CoCr2-xRxO4) pigments.