Patents by Inventor Craig L. Hill

Craig L. Hill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9833777
    Abstract: Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 5, 2017
    Assignee: Emory University
    Inventors: Craig L. Hill, Yurii V. Gueletii, Djamaladdin G. Musaev, Qiushi Yin, Bogdan Botar
  • Patent number: 9737880
    Abstract: This disclosure relates to photocatalytic polyoxometalate compositions of tungstovanadates and uses as water oxidation catalysts. In certain embodiments, the disclosure relates to compositions comprising water, a complex of a tetra-metal oxide cluster and VW9O34 ligands, and a photosensitizer. Typically, the metal oxide cluster is Co. In certain embodiments, the disclosure relates to electrodes and other devices comprising water oxidation catalysts disclosed herein and uses in generating fuels and electrical power from solar energy.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 22, 2017
    Assignee: Emory University
    Inventors: Craig L. Hill, Iourii V. Gueletii, Jie Song, Hongjin Lv, Djamaladdin Musaev, Zhen Luo
  • Publication number: 20170106359
    Abstract: Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts.
    Type: Application
    Filed: July 23, 2014
    Publication date: April 20, 2017
    Inventors: Craig L. Hill, Yurii V. Gueletii, Djamaladdin G. Musaev, Qiushi Yin, Bogdan Botar
  • Publication number: 20150298100
    Abstract: This disclosure relates to photocatalytic polyoxometalate compositions of tungstovanadates and uses as water oxidation catalysts. In certain embodiments, the disclosure relates to compositions comprising water, a complex of a tetra-metal oxide cluster and VW9O34 ligands, and a photosensitizer. Typically, the metal oxide cluster is Co. In certain embodiments, the disclosure relates to electrodes and other devices comprising water oxidation catalysts disclosed herein and uses in generating fuels and electrical power from solar energy.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 22, 2015
    Inventors: Craig L. Hill, Iourii V. Gueletii, Jie Song, Hongjin Lv, Djamaladdin Musaev, Zhen Luo
  • Patent number: 8822367
    Abstract: Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: September 2, 2014
    Assignee: Emory University
    Inventors: Craig L Hill, Yurii V Gueletii, Djamaladdin G. Musaev, Qiushi Yin, Bogdan Botar
  • Publication number: 20120264592
    Abstract: The invention relates to composition and methods of using described compositions as oxidative catalysis. In certain embodiments, the invention relates to a composition having a nitrogen oxide species, bromide ion, a metal, and oxygen. In certain embodiments, the composition catalyzes sulfides.
    Type: Application
    Filed: September 8, 2010
    Publication date: October 18, 2012
    Applicant: EMORY UNIVERSITY
    Inventors: Zhen Luo, Daniel A. Hillesheim, Iourii V. Gueletii, Craig L. Hill
  • Publication number: 20120027666
    Abstract: Homogeneous water oxidation catalysts (WOCs) for the oxidation of water to produce hydrogen ions and oxygen, and methods of making and using thereof are described herein. In a preferred embodiment, the WOC is a polyoxometalate WOC which is hydrolytically stable, oxidatively stable, and thermally stable. The WOC oxidized waters in the presence of an oxidant. The oxidant can be generated photochemically, using light, such as sunlight, or electrochemically using a positively biased electrode. The hydrogen ions are subsequently reduced to form hydrogen gas, for example, using a hydrogen evolution catalyst (HEC). The hydrogen gas can be used as a fuel in combustion reactions and/or in hydrogen fuel cells. The catalysts described herein exhibit higher turn over numbers, faster turn over frequencies, and/or higher oxygen yields than prior art catalysts.
    Type: Application
    Filed: March 17, 2010
    Publication date: February 2, 2012
    Applicant: EMORY UNIVERSITY
    Inventors: Craig L Hill, Yurii V Gueletii, Djamaladdin G. Musaev, Qiushi Yin, Bogdan Botar
  • Patent number: 7691289
    Abstract: Compositions, materials incorporating the compositions, and methods of use thereof, are disclosed. In one embodiment, the composition includes a metal nitrate selected from d-block metal nitrates and f-block metal nitrates and a metal salt having weakly bound counter anions. The metal of the metal salt having weakly bound counter anions is selected from a d-block metal and an f-block metal. Another embodiment of the composition includes a first polyoxometalate having a first metal selected from a d-block metal and an f-block metal and a second polyoxometalate having a second metal selected from a d-block metal and an f-block metal. The first metal being an open coordinate site of the first polyoxometalate. In addition, the first metal has a nitrate terminal ligand. The second metal being an open coordinate site of the second polyoxometalate. In addition, the second metal has a halide terminal ligand.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: April 6, 2010
    Assignee: Emory University
    Inventors: Nelya Okun, Craig L. Hill
  • Patent number: 7655594
    Abstract: Briefly described, compositions, materials including the compositions, methods of using the compositions, and methods of degrading contaminants, are described herein. The composition can include a polyoxometalate/ cationic silica material. In addition, the compositions can be made of a polyoxometalate/cationic silica material, a copper (II) salt having a weakly bound anion, and a nitrate salts. Further, the compositions can be made of a polyoxometalate/cationic silica material, a copper (II) salt having a weakly bound anion, a compound selected from tetraethylammonium (TEA) nitrate, tetra-n-butylammonium (TBA) nitrate, and combinations thereof.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: February 2, 2010
    Assignee: Emory University
    Inventors: Neyla Okun, Craig L. Hill
  • Publication number: 20080187601
    Abstract: The invention relates to a polyoxometalate topical composition for removing a contaminant from an environment, comprising a topical carrier and at least one polyoxometalate, with the proviso that the polyoxometalate is not H5PV2Mo10O40; K5Si(H2O)MnIIIW11O39; K4Si(H2O)MnIVW11O39; or K5CoIIIW12O40. The invention further relates to a method for removing a contaminant from an environment, comprising contacting the polyoxometalate topical composition of the present invention with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment. The invention further relates to a method for removing a contaminant from an environment, comprising contacting a polyoxometalate powder or a polyoxometalate coating with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment.
    Type: Application
    Filed: December 7, 2006
    Publication date: August 7, 2008
    Inventors: Craig L. Hill, Ling Xu, Jeffrey T. Rhule, Eric A. Boring
  • Patent number: 7097858
    Abstract: Polyoxometalate topical compositions for removing contaminants from an environment and methods of use thereof are disclosed. An embodiment of the polyoxometalate topical composition includes a topical carrier and at least one polyoxometalate, with the proviso that the polyoxometalate is not H5PV2Mo10O40; K5Si(H2O)MnIIIW11O39; K4Si(H2O)MnIVW11O39; or K5CoIIIW12O40. Another embodiment relates to a method for removing a contaminant from an environment, including contacting the polyoxometalate topical composition with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: August 29, 2006
    Assignee: Emory University
    Inventors: Craig L. Hill, Ling Xu, Jeffrey T. Rhule, Eric A. Boring
  • Patent number: 6979566
    Abstract: A water soluble derivative of buckministerfullerene (C50) having antiviral and virucidal properties is used to inhibit human retroviral replication and infections. The derivatized fullerene is symmetrically substituted with polar organic moieties containing 1 to 20 carbon atoms and optionally further containing oxygen or nitrogen.
    Type: Grant
    Filed: February 1, 2003
    Date of Patent: December 27, 2005
    Assignee: The Regents of the University of California
    Inventors: Simon H. Friedman, Raymond F. Schinazi, Fred Wudl, Craig L. Hill, Diane L. DeCamp, Rintje P. Sijbesma, George L. Kenyon
  • Patent number: 6911470
    Abstract: Polyoxometalate compounds which exhibit anti-retroviral activity are disclosed. Compounds with anti-retroviral activity include those having the following general molecular formulas: M7PW11O39 M8SiW11O39 M9HSiW9O34 M8HPW9O34 M10(TM)4(PW9O34)2 M16(TM)4(P2W15O56)2 M14[NaP5W30O110] M12(TM)3(PW9O34)2 M6P2W18O62 wherein M is an alkali metal, NH4+ or other common monocation or soluble dication, or any combination of the above provided adequate water solubility is exhibited, or histidinium ion, argininium ion, or lysinium ion or any dication of a dipeptide or oligopeptide with 2 protonated basic amino acid residues, or any combination of these monocations or dications with each other or with any common inorganic cation, and TM is a divalent transition metal ion, such as Mn, Fe, Co, Ni, Cu and Zn.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: June 28, 2005
    Inventors: Raymond F. Schinazi, Craig L. Hill
  • Publication number: 20040230086
    Abstract: Compositions, materials incorporating the compositions, and methods of use thereof, are disclosed. In one embodiment, the composition includes a metal nitrate selected from d-block metal nitrates and f-block metal nitrates and a metal salt having weakly bound counter anions. The metal of the metal salt having weakly bound counter anions is selected from a d-block metal and an f-block metal. Another embodiment of the composition includes a first polyoxometalate having a first metal selected from a d-block metal and an f-block metal and a second polyoxometalate having a second metal selected from a d-block metal and an f-block metal. The first metal being an open coordinate site of the first polyoxometalate. In addition, the first metal has a nitrate terminal ligand. The second metal being an open coordinate site of the second polyoxometalate. In addition, the second metal has a halide terminal ligand.
    Type: Application
    Filed: February 25, 2004
    Publication date: November 18, 2004
    Inventors: Nelya Okun, Craig L. Hill
  • Publication number: 20040185078
    Abstract: The invention relates to a method for removing a contaminant from a gas phase or a liquid phase by contacting an article composed of (1) a fabric or cellulosic fiber and (2) a polyoxometalate, wherein the polyoxometalate is incorporated in the fabric or cellulosic fiber, with the gas phase or liquid phase containing the contaminant. The invention further relates to a polyoxometalate-modified fabric composed of a fabric and a polyoxometalate of the present invention incorporated in the fabric. The invention further relates to an article containing the polyoxometalate-modified fabric. The invention further relates to a method for making the polyoxometalate-modified fabric, by contacting the fabric with a polyoxometalate to produce a polyoxometalate-modified fabric.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Inventors: Craig L. Hill, Ling Xu
  • Publication number: 20040185116
    Abstract: The invention relates to a polyoxometalate topical composition for removing a contaminant from an environment, comprising a topical carrier and at least one polyoxometalate, with the proviso that the polyoxometalate is not H5PV2Mo10O40; K5Si(H2 O)MnIIIW11O39; K4Si(H2O)MnIVW11O39; or K5CoIIIW12O40. The invention further relates to a method for removing a contaminant from an environment, comprising contacting the polyoxometalate topical composition of the present invention with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment. The invention further relates to a method for removing a contaminant from an environment, comprising contacting a polyoxometalate powder or a polyoxometalate coating with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Inventors: Craig L. Hill, Ling Xu, Jeffrey T. Rhule, Eric A. Boring
  • Patent number: 6723349
    Abstract: The invention relates to a polyoxometalate topical composition for removing a contaminant from an environment, comprising a topical carrier and at least one polyoxometalate, with the proviso that the polyoxometalate is not H5PV2Mo10O40; K5Si(H2O)MnIIIW11O39; K4Si(H2O)MnIVW11O39; or K5CoIIIW12O40. The invention further relates to a method for removing a contaminant from an environment, comprising contacting the polyoxometalate topical composition of the present invention with the environment containing the contaminant for a sufficient time to remove the contaminant from the environment. The invention further relates to a modified polyoxometalate, wherein the modified polyoxometalate comprises the admixture of (1) a polyoxometalate and (2) a cerium compound, a silver compound, a gold compound, a platinum compound, or a combination thereof.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: April 20, 2004
    Assignee: Emory University
    Inventors: Craig L. Hill, Ling Xu, Jeffrey T. Rhule, Eric A. Boring
  • Patent number: 6713076
    Abstract: The invention relates to a method for removing a contaminant from a gas phase or a liquid phase by contacting an article composed of (1) a fabric or cellulosic fiber and (2) a polyoxometalate, wherein the polyoxometalate is incorporated in the fabric or cellulosic fiber, with the gas phase or liquid phase containing the contaminant. The invention further relates to a polyoxometalate-modified fabric composed of a fabric and a polyoxometalate of the present invention incorporated in the fabric. The invention further relates to an article containing the polyoxometalate-modified fabric. The invention further relates to a method for making the polyoxometalate-modified fabric, by contacting the fabric with a polyoxometalate to produce a polyoxometalate-modified fabric.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: March 30, 2004
    Assignee: Emory University
    Inventors: Craig L. Hill, Ling Xu
  • Publication number: 20040044062
    Abstract: A water soluble derivative of buckministerfullerene (C50) having antiviral and virucidal properties is used to inhibit human retroviral replication and infections. The derivatized fullerene is symmetrically substituted with polar organic moieties containing 1 to 20 carbon atoms and optionally further containing oxygen or nitrogen.
    Type: Application
    Filed: February 1, 2003
    Publication date: March 4, 2004
    Inventors: Simon H. Friedman, Raymond F. Schinazi, Fred Wudl, Craig L. Hill, Diane L. DeCamp, Rintje P. Sijbesma, George L. Kenyon
  • Patent number: 6613771
    Abstract: A water soluble derivative of buckministerfullerene (C60) having antiviral and virucidal properties is used to inhibit human retroviral replication and infections. The derivatized fullerene is symmetrically substituted with polar organic moieties containing 1 to 20 carbon atoms and optionally further containing oxygen or nitrogen.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: September 2, 2003
    Assignee: The Regents of the University of California
    Inventors: Simon H. Friedman, Raymond F. Schinazi, Fred Wudl, Craig L. Hill, Diane L. DeCamp, Rintje P. Sijbesma, George L. Kenyon