Patents by Inventor Maira Ceron Hernandez

Maira Ceron Hernandez 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: 11939686
    Abstract: A thermo-electrochemical reactive capture apparatus includes an anode and a cathode, wherein the anode includes a first catalyst, wherein the cathode includes a second catalyst, a porous ceramic support positioned between the anode and the cathode, an electrolyte mixture in pores of the ceramic support, and a steam flow system on an outer side of the cathode. The outer side of the cathode is opposite an inner side of the cathode and the inner side of the cathode is adjacent to the ceramic support. In addition, the electrolyte mixture is configured to be molten at a temperature below about 600° C.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: March 26, 2024
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Jeremy Taylor Feaster, Sneha Anil Akhade
  • Patent number: 11638907
    Abstract: In accordance with one aspect of the presently disclosed inventive concepts, a porous ceramic structure includes a three-dimensional printed structure having predefined features, where the three-dimensional structure has a geometric shape. The average length of the features may be at least 10 microns. The three-dimensional structure includes a ceramic material having an open cell structure with a plurality of pores, where the pores form continuous channels through the ceramic material from one side of the ceramic material to an opposite side of the ceramic material.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 2, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Patrick Campbell, Sarah Baker, Maira Ceron Hernandez, Jennifer Marie Knipe, Joshuah K. Stolaroff
  • Publication number: 20230073509
    Abstract: In one embodiment, a system includes a purification stage configured to purify an input gas stream prior to delivering the input gas stream to a reaction stage; and a collection stage configured to collect at least some ammonia from the reaction stage. The reaction stage is configured to reduce nitrogen into nitride; and convert at least some of the nitride into ammonia. In another embodiment, a separation membrane includes: an anode; a cathode electrically coupled to the anode; and a porous support material positioned between the anode and the cathode. The separation membrane is configured to reduce nitrogen into nitride; and facilitate hydrogenation of the nitride to form ammonia. In another embodiment, a method includes delivering an input gas stream comprising nitrogen to a separation membrane; reducing at least some of the nitrogen into nitride; and reacting at least some of the nitride with hydrogen-containing compound(s).
    Type: Application
    Filed: September 8, 2021
    Publication date: March 9, 2023
    Inventors: Maira Ceron Hernandez, Hannah Violet Eshelman, Vedasri Vedharathinam, Marissa Wood
  • Publication number: 20220250954
    Abstract: The present disclosure relates to a method for making a carbon aerogel electrode material. The method involves initially making a wet organic sol-gel form. The sol-gel form is carbonized at a temperature of from about 900° C. to about 1000° C., for from about 2 hours to about 4 hours. The carbonized sol-gel is then activated under carbon dioxide flow, for from about 0.5 hour to about 1.5 hours, at from about 900° C. to about 1000° C.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 11, 2022
    Inventors: Patrick CAMPBELL, Maira Ceron HERNANDEZ, Steven HAWKS, Colin LOEB, Tuan Anh PHAM, Michael STADERMANN
  • Patent number: 11358883
    Abstract: The present disclosure relates to a flow through electrode, capacitive deionization (FTE-CDI) system which is able to adsorb nitrates from water being treated using the system. The system makes use of a pair of electrodes arranged generally parallel to one another, with a water permeable dielectric sandwiched between the electrodes. The electrodes receive a direct current voltage from an electrical circuit. At least one of the electrodes is formed from a carbon material having a hierarchical pore size distribution which includes a first plurality of pores having a width of no more than about 1 nm, and a second plurality of micro-sized pores. The micron-sized pores enable a flow of water to be pushed through the electrodes while the first plurality of pores form adsorption sites for nitrate molecules carried in the water flowing through the electrodes.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: June 14, 2022
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Steven Hawks, Colin Loeb, Tuan Anh Pham, Michael Stadermann
  • Publication number: 20220178036
    Abstract: A thermo-electrochemical reactive capture apparatus includes an anode and a cathode, wherein the anode includes a first catalyst, wherein the cathode includes a second catalyst, a porous ceramic support positioned between the anode and the cathode, an electrolyte mixture in pores of the ceramic support, and a steam flow system on an outer side of the cathode. The outer side of the cathode is opposite an inner side of the cathode and the inner side of the cathode is adjacent to the ceramic support. In addition, the electrolyte mixture is configured to be molten at a temperature below about 600° C.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 9, 2022
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Jeremy Taylor Feaster, Sneha Anil Akhade
  • Publication number: 20220118424
    Abstract: An ink includes a vinyl-terminated polydimethylsiloxane polymer, a polydimethylsiloxane copolymer having a hydride component, wherein a hydride to a vinyl ratio (hydride:vinyl) is in a range of greater than 1:1 to about 4:1, a hydrophobic filler, a crosslinking agent, and a carbon dioxide-binding component. A method includes extruding an ink for forming a three-dimensional (3D) structure, the ink including a vinyl-terminated polydimethylsiloxane polymer, a polydimethylsiloxane copolymer having a hydride component, wherein a hydride to a vinyl ratio (hydride:vinyl) is in a range of greater than 1:1 to about 4:1, a hydrophobic filler, a crosslinking agent, and a carbon dioxide-binding component. The method further includes curing the 3D structure for forming a silicone polymer product having the carbon dioxide-binding component.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 21, 2022
    Inventors: Jennifer Marie Knipe, Sarah E. Baker, Maira Ceron Hernandez, Jeremy M. Lenhardt, Simon Hoching Pang, Joshuah K. Stolaroff, Matthew A. Worthington
  • Patent number: 11142486
    Abstract: In one inventive concept, a product includes a three dimensional ceramic structure having an open cell structure with a plurality of pores, wherein the pores connect through the ceramic structure from one side of the ceramic structure to an opposite side of the ceramic structure.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 12, 2021
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Marcus A. Worsley
  • Publication number: 20200247693
    Abstract: The present disclosure relates to a flow through electrode, capacitive deionization (FTE-CDI) system which is able to adsorb nitrates from water being treated using the system. The system makes use of a pair of electrodes arranged generally parallel to one another, with a water permeable dielectric sandwiched between the electrodes. The electrodes receive a direct current voltage from an electrical circuit. At least one of the electrodes is formed from a carbon material having a hierarchical pore size distribution which includes a first plurality of pores having a width of no more than about 1 nm, and a second plurality of micro-sized pores. The micron-sized pores enable a flow of water to be pushed through the electrodes while the first plurality of pores form adsorption sites for nitrate molecules carried in the water flowing through the electrodes.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 6, 2020
    Inventors: Patrick CAMPBELL, Maira Ceron HERNANDEZ, Steven HAWKS, Colin LOEB, Tuan Anh PHAM, Michael STADERMANN
  • Publication number: 20200114333
    Abstract: In accordance with one aspect of the presently disclosed inventive concepts, a porous ceramic structure includes a three-dimensional printed structure having predefined features, where the three-dimensional structure has a geometric shape. The average length of the features may be at least 10 microns. The three-dimensional structure includes a ceramic material having an open cell structure with a plurality of pores, where the pores form continuous channels through the ceramic material from one side of the ceramic material to an opposite side of the ceramic material.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 16, 2020
    Inventors: Patrick Campbell, Sarah Baker, Maira Ceron Hernandez, Jennifer Marie Knipe, Joshuah K. Stolaroff
  • Publication number: 20190389778
    Abstract: In one inventive concept, a product includes a three dimensional ceramic structure having an open cell structure with a plurality of pores, wherein the pores connect through the ceramic structure from one side of the ceramic structure to an opposite side of the ceramic structure.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 26, 2019
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Marcus A. Worsley
  • Publication number: 20190379063
    Abstract: In one aspect of an inventive concept, a fuel cell system includes a cathode and an anode, a porous ceramic support positioned between the cathode and anode, and a molten electrolyte mixture in pores of the ceramic support. In another aspect of an inventive concept, a method for producing energy includes directing a gas stream through a cathode, where an inner side of the cathode is adjacent to a dual phase membrane including a ceramic support infiltrated with a molten electrolyte mixture, sweeping an outer side of the anode with water, where an inner side of the anode is adjacent to the dual phase membrane, and collecting energy from the anode. The dual phase membrane is sandwiched between the cathode and an anode.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 12, 2019
    Inventors: Patrick Campbell, Maira Ceron Hernandez, Vedasri Vedharathinam