Patents by Inventor Shuifen Xie

Shuifen Xie 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).

  • Layered platinum on freestanding palladium nano-substrates for electrocatalytic applications and methods of making thereof
    Patent number: 11784316
    Abstract: Core-shell nanostructures with platinum overlayers conformally coating palladium nano-substrate cores and facile solution-based methods for the preparation of such core-shell nanostructures are described herein. The obtained Pd@Pt core-shell nanocatalysts showed enhanced specific and mass activities towards oxygen reduction, compared to a commercial Pt/C catalyst.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: October 10, 2023
    Assignee: Georgia Tech Research Corporation
    Inventors: Younan Xia, Shuifen Xie, Sang-Il Choi, Xue Wang, Jinho Park, Lei Zhang
  • LAYERED PLATINUM ON FREESTANDING PALLADIUM NANO-SUBSTRATES FOR ELECTROCATALYTIC APPLICATIONS AND METHODS OF MAKING THEREOF
    Publication number: 20210367243
    Abstract: Core-shell nanostructures with platinum overlayers conformally coating palladium nano-substrate cores and facile solution-based methods for the preparation of such core-shell nanostructures are described herein. The obtained Pd@Pt core-shell nanocatalysts showed enhanced specific and mass activities towards oxygen reduction, compared to a commercial Pt/C catalyst.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 25, 2021
    Inventors: Younan Xia, Shuifen Xie, Sang-Il Choi, Xue Wang, Jinho Park, Lei Zhang
  • Layered platinum on freestanding palladium nano-substrates for electrocatalytic applications and methods of making thereof
    Patent number: 11114671
    Abstract: Core-shell nanostructures with platinum overlayers conformally coating palladium nano-substrate cores and facile solution-based methods for the preparation of such core-shell nanostructures are described herein. The obtained Pd@Pt core-shell nanocatalysts showed enhanced specific and mass activities towards oxygen reduction, compared to a commercial Pt/C catalyst.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 7, 2021
    Assignee: Georgia Tech Research Corporation
    Inventors: Younan Xia, Shuifen Xie, Sang-Il Choi, Xue Wang, Jinho Park, Lei Zhang
  • LAYERED PLATINUM ON FREESTANDING PALLADIUM NANO-SUBSTRATES FOR ELECTROCATALYTIC APPLICATIONS AND METHODS OF MAKING THEREOF
    Publication number: 20160276674
    Abstract: Core-shell nanostructures with platinum overlayers conformally coating palladium nano-substrate cores and facile solution-based methods for the preparation of such core-shell nanostructures are described herein. The obtained Pd@Pt core-shell nanocatalysts showed enhanced specific and mass activities towards oxygen reduction, compared to a commercial Pt/C catalyst.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 22, 2016
    Inventors: Younan Xia, Shuifen Xie, Sang-Il Choi, Xue Wang, Jinho Park, Lei Zhang
  • Spatially-controlled synthesis of palladium—rhodium hetero-nanostructures
    Patent number: 9023223
    Abstract: In a method of generating a nanocrystal with a core-frame structure, a seed crystal, including a first substance, is exposed to a capping agent. The seed nanocrystal has a plurality of first portions that each has a first characteristic and a plurality of second portions that each has a second characteristic, different from the first characteristic. The capping agent has a tendency to adsorb to portions having the first characteristic and has a tendency not to adsorb to portions having the second characteristic. As a result, a selectively capped seed nanocrystal is generated. The selectively capped seed nanocrystal is exposed to a second substance that has a tendency to nucleate on the plurality of second portions and that does not have a tendency to nucleate on portions that have adsorbed the capping agent, thereby generating a frame structure from the plurality of second portions of the seed nanocrystal.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 5, 2015
    Assignee: Georgia Tech Research Corporation
    Inventors: Younan Xia, Shuifen Xie
  • Spatially-Controlled Synthesis of Palladium-Rhodium Hetero-Nanostructures
    Publication number: 20150069015
    Abstract: In a method of generating a nanocrystal with a core-frame structure, a seed crystal, including a first substance, is exposed to a capping agent. The seed nanocrystal has a plurality of first portions that each has a first characteristic and a plurality of second portions that each has a second characteristic, different from the first characteristic. The capping agent has a tendency to adsorb to portions having the first characteristic and has a tendency not to adsorb to portions having the second characteristic. As a result, a selectively capped seed nanocrystal is generated. The selectively capped seed nanocrystal is exposed to a second substance that has a tendency to nucleate on the plurality of second portions and that does not have a tendency to nucleate on portions that have adsorbed the capping agent, thereby generating a frame structure from the plurality of second portions of the seed nanocrystal.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Younan Xia, Shuifen Xie