Patents by Inventor G. K. Surya Prakash

G. K. Surya Prakash 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).

  • Publication number: 20230275251
    Abstract: An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.
    Type: Application
    Filed: May 4, 2023
    Publication date: August 31, 2023
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Sri R. NARAYAN, G.K. Surya PRAKASH, Archith NIRMALCHANDAR, Advaith MURALI, Bo YANG, Sankarganesh KRISHNAMOORTHY, Lena HOOBER-BURKHARDT, Robert ANISZFELD
  • Patent number: 11646434
    Abstract: An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: May 9, 2023
    Assignee: University of Southern California
    Inventors: Sri R. Narayan, G. K. Surya Prakash, Archith Nirmalchandar, Advaith Murali, Bo Yang, Sankarganesh Krishnamoorthy, Lena Hoober-Burkhardt, Robert Aniszfeld
  • Publication number: 20220352498
    Abstract: A rechargeable battery includes an iron electrode comprising carbonyl iron composition dispersed over a fibrous electrically conductive substrate. The carbonyl iron composition includes carbonyl iron and at least one additive. A counter-electrode is spaced from the iron electrode. An electrolyte is in contact with the iron electrode and the counter-electrode such that during discharge. Iron in the iron electrode is oxidized with reduction occurring at the counter-electrode such that an electric potential develops. During charging, iron oxides and hydroxides in the iron electrode are reduced with oxidation occurring at the counter-electrode (i.e., a nickel electrode or an air electrode).
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Sri R. NARAYAN, Aswin K. MANOHAR, Chenguang YANG, G. K. Surya PRAKASH, Robert ANISZFELD
  • Patent number: 11245111
    Abstract: A quinone derivative with a high redox potential that does not undergo Michael addition or proto-desulfonation. This molecule addresses the key issues faced with the positive side material of an aqueous all-organic flow battery. This new molecule is 2,5-dihydroxy-4,6-dimethylbenzene-1,3-disulfonic acid (or the disulfonate salt thereof). This quinone derivative offers good solubility, electrochemical reversibility, and robustness to charge/discharge cycling. Quinones with reduced crossover are also provided.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: February 8, 2022
    Assignee: University of Southern California
    Inventors: Bo Yang, G. K. Surya Prakash, Robert Aniszfeld, Sri R. Narayan, Lena Hoober-Burkhardt, Sankarganesh Krishnamoorthy, Advaith Murali, Archith Nirmalchandar
  • Publication number: 20210257643
    Abstract: A flow battery that includes an iron-based redox couple includes a positive electrode, a positive electrode electrolyte including a soluble iron-based redox couple, a negative electrode, and a negative electrode electrolyte including a cyclic organic-based redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The iron-based redox couple includes an iron-containing compound which is reduced during discharge. The negative electrode electrolyte flows over and contacting the negative electrode. The cyclic organic-based redox couple includes a cyclic organic compound. The reduction product of the cyclic organic compound being oxidized to the cyclic organic compound during discharge.
    Type: Application
    Filed: May 24, 2019
    Publication date: August 19, 2021
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Sri R. NARAYAN, Bo YANG, Buddhinie Sirmali JAYATHILAKE, Advaith MURALI, Archith NIRMALCHANDAR, G.K. Surya PRAKASH
  • Publication number: 20210197172
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Inventors: Alain GOEPPERT, Hang ZHANG, George A. OLAH, G.K. Surya PRAKASH
  • Patent number: 10953384
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: March 23, 2021
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Alain Goeppert, Hang Zhang, George A. Olah, G. K. Surya Prakash
  • Publication number: 20210005918
    Abstract: An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.
    Type: Application
    Filed: March 12, 2019
    Publication date: January 7, 2021
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Sri R. NARAYAN, G.K. Surya PRAKASH, Archith NIRMALCHANDAR, Advaith MURALI, Bo YANG, Sankarganesh KRISHNAMOORTHY, Lena HOOBER-BURKHARDT, Robert ANISZFELD
  • Patent number: 10751689
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 25, 2020
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Alain Goeppert, Hang Zhang, George A. Olah, G. K. Surya Prakash
  • Patent number: 10374261
    Abstract: An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 6, 2019
    Assignee: University of Southern California
    Inventors: Sri R. Narayan, G. K. Surya Prakash, Robert Aniszfeld, Aswin Manohar, Souradip Malkhandi, Bo Yang
  • Publication number: 20190168185
    Abstract: The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Inventors: Alain GOEPPERT, Hang ZHANG, George A. OLAH, G.K. Surya Prakash
  • Publication number: 20190115594
    Abstract: A quinone derivative with a high redox potential that does not undergo Michael addition or proto-desulfonation. This molecule addresses the key issues faced with the positive side material of an aqueous all-organic flow battery. This new molecule is 2,5-dihydroxy-4,6-dimethylbenzene-1,3-disulfonic acid (or the disulfonate salt thereof). This quinone derivative offers good solubility, electrochemical reversibility, and robustness to charge/discharge cycling. Quinones with reduced crossover are also provided.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventors: BO YANG, G.K. SURYA PRAKASH, ROBERT ANISZFELD, SRI R. NARAYAN, LENA HOOBER-BURKHARDT, SANKARGANESH KRISHNAMOORTHY, ADVAITH MURALI, ARCHITH NIRMALCHANDAR
  • Patent number: 10131599
    Abstract: A method of producing methanol from shale gas and CO2 by the exclusive dry CO2 fracking of shale rock by injection of gaseous CO2 at a pressure between 10 and 100 atm to extract shale gas and recover it together with used CO2; combining and admixing produced shale gas containing CO2 and steam to produce a mixture of methane:carbon dioxide:water having a molar ratio of 3:1:2 for conducting the bi-reforming reaction to form a mixture of hydrogen and carbon monoxide having a molar ratio of 2:1 to 2.1:1; and converting the hydrogen and carbon monoxide under conditions sufficient to exclusively form methanol.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 20, 2018
    Assignee: University of Southern California
    Inventors: George A. Olah, G. K. Surya Prakash
  • Patent number: 9968880
    Abstract: The invention relates to regenerative, solid sorbent for adsorbing carbon dioxide from a gas mixture, with the sorbent including a modified polyamine and a nano-structured solid support. The modified polyamine is the reaction product of an amine and an aldehyde. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple operations of absorption-desorption cycles.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: May 15, 2018
    Assignee: University of Southern California
    Inventors: Alain Goeppert, Hang Zhang, G. K. Surya Prakash, George A. Olah
  • Publication number: 20170304764
    Abstract: The invention relates to regenerative, solid sorbent for adsorbing carbon dioxide from a gas mixture, with the sorbent including a modified polyamine and a nano-structured solid support. The modified polyamine is the reaction product of an amine and an aldehyde. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple operations of absorption-desorption cycles.
    Type: Application
    Filed: November 4, 2014
    Publication date: October 26, 2017
    Inventors: Alain GOEPPERT, Hang ZHANG, G.K. Surya PRAKASH, George A. OLAH
  • Publication number: 20170141434
    Abstract: An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 18, 2017
    Inventors: Sri R. NARAYAN, G.K. Surya PRAKASH, Robert ANISZFELD, Aswin MANOHAR, Souradip MALKHANDI, Bo YANG
  • Patent number: 9577298
    Abstract: An iron electrode and a method of manufacturing an iron electrode for use in an iron-based rechargeable battery are disclosed. In one embodiment, the iron electrode includes carbonyl iron powder and one of a metal sulfide additive or metal oxide additive selected from the group of metals consisting of bismuth, lead, mercury, indium, gallium, and tin for suppressing hydrogen evolution at the iron electrode during charging of the iron-based rechargeable battery. An iron-air rechargeable battery including an iron electrode comprising carbonyl iron is also disclosed, as is an iron-air battery wherein at least one of the iron electrode and the electrolyte includes an organosulfur additive.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 21, 2017
    Assignee: University of Southern California
    Inventors: Sri R. Narayan, G. K. Surya Prakash, Robert Aniszfeld, Aswin Manohar, Souradip Malkhandi, Bo Yang
  • Patent number: 9504952
    Abstract: A method for recycling a carbon-containing greenhouse gas emissions such as carbon dioxide and methane (natural gas) or a hydrocarbon homolog thereof. The method includes the steps of capturing the emissions, sequestering them in an underground or undersea storage area, withdrawing them from the storage area after storage therein, and converting them to carbon-containing compounds such as methanol, dimethyl ether and derived products. Greenhouse gases such as carbon dioxide and methane are chemically recycled to provide a permanent and inexhaustible supply of carbon-containing fuels or products, which subsequently can be combusted or used without increasing the carbon dioxide content of the atmosphere. The method is thus effective in neutralizing or reducing the carbon footprint due to human activities related to combustion or use of carbon-containing fuels while providing a repeatedly sustainable carbon source.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 29, 2016
    Assignee: University of Southern California
    Inventors: George A. Olah, G. K. Surya Prakash
  • Publication number: 20160340278
    Abstract: A method of producing methanol from shale gas and CO2 by the exclusive dry CO2 fracking of shale rock by injection of gaseous CO2 at a pressure between 10 and 100 atm to extract shale gas and recover it together with used CO2; combining and admixing produced shale gas containing CO2 and steam to produce a mixture of methane:carbon dioxide:water having a molar ratio of 3:1:2 for conducting the bi-reforming reaction to form a mixture of hydrogen and carbon monoxide having a molar ratio of 2:1 to 2.1:1; and converting the hydrogen and carbon monoxide under conditions sufficient to exclusively form methanol.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 24, 2016
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: George A. Olah, G.K. Surya Prakash
  • Publication number: 20160237362
    Abstract: The common interchangeable use of a high methanol content fuel for use in all types of internal combustion engines, including cars, trucks, vehicles for transportation use (ships, boats, locomotives, airplanes, etc.), various other equipment and turbines. The engines are converted to be able to use these fuels although further vehicles can be made with components that would allow such fuels to be used. These methanol fuels are renewable and environmentally benign when produced from carbon dioxide capture and recycling of their combustion or other use.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 18, 2016
    Inventors: George A. OLAH, G.K. Surya PRAKASH