Patents by Inventor Krista S. Walton

Krista S. Walton 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: 11066426
    Abstract: Disclosed herein is a method of making a porous molecular structure from a solution comprising an insoluble metal containing material and a ligand-providing material. In some embodiments, the porous molecular structure can be a Metal-Organic Framework (MOF). Ionic metal salts are the most common type of metal source for MOF production, but dissolution of metal salts complicates solvent recycling and creates corrosion and oxidation issues through evolved nitrate and chloride anions. Elucidating information that leads toward more efficient production of these versatile nanomaterials, while extending the knowledge base of how MOFs form during reaction, is critical to advancing MOF materials into large-scale use. Disclosed herein are improved methods for controlled synthesis of porous molecular structures such as MOFs comprising a solution-based synthesis with insoluble metallic precursor.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: July 20, 2021
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Jayraj Nayan Joshi, Colton Michael Moran, Krista S. Walton
  • Publication number: 20190270760
    Abstract: Disclosed herein is a method of making a porous molecular structure from a solution comprising an insoluble metal containing material and a ligand-providing material. In some embodiments, the porous molecular structure can be a Metal-Organic Framework (MOF). Ionic metal salts are the most common type of metal source for MOF production, but dissolution of metal salts complicates solvent recycling and creates corrosion and oxidation issues through evolved nitrate and chloride anions. Elucidating information that leads toward more efficient production of these versatile nanomaterials, while extending the knowledge base of how MOFs form during reaction, is critical to advancing MOF materials into large-scale use. Disclosed herein are improved methods for controlled synthesis of porous molecular structures such as MOFs comprising a solution-based synthesis with insoluble metallic precursor.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 5, 2019
    Inventors: Jayraj Nayan Joshi, Colton Michael Moran, Krista S. Walton
  • Patent number: 10307729
    Abstract: Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H2S, SO2, or NH3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g?1 to 10 mmol g?1 at a relative humidity of 0% RH to 75% RH.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 4, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Michael Charles Mangarella, Krista S. Walton
  • Publication number: 20180117563
    Abstract: Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H2S, SO2, or NH3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g?1 to 10 mmol g?1 at a relative humidity of 0% RH to 75% RH.
    Type: Application
    Filed: October 27, 2017
    Publication date: May 3, 2018
    Inventors: Michael Charles Mangarella, Krista S. Walton
  • Patent number: 9833765
    Abstract: Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H2S, SO2, or NH3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g?1 to 10 mmol g?1 at a relative humidity of 0% RH to 75% RH.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: December 5, 2017
    Assignee: Georgia Tech Research Corporation
    Inventors: Michael Charles Mangarella, Krista S. Walton
  • Publication number: 20160310929
    Abstract: Carbide-derived carbons are provided that have high dynamic loading capacity for high vapor pressure gasses such as H2S, SO2, or NH3. The carbide-derived carbons can have a plurality of metal chloride or metallic nanoparticles entrapped therein. Carbide-derived carbons are provided by extracting a metal from a metal carbide by chlorination of the metal carbide to produce a porous carbon framework having residual metal chloride nanoparticles incorporated therein, and annealing the porous carbon framework with H2 to remove residual chloride by reducing the metal chloride nanoparticles to produce the metallic nanoparticles entrapped within the porous carbon framework. The metals can include Fe, Co, Mo, or a combination thereof. The carbide-derived carbons are provided with an ammonia dynamic loading capacity of 6.9 mmol g?1 to 10 mmol g?1 at a relative humidity of 0% RH to 75% RH.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 27, 2016
    Inventors: Michael Charles Mangarella, Krista S. Walton