Patents by Inventor Bu Hyun YOUN

Bu Hyun YOUN 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).

  • Method of preparing core-shell copper nanoparticles immobilized on activated carbon and method of preparing chalcogenide compound using nanoparticles as catalyst
    Patent number: 9518012
    Abstract: Disclosed herein is a method of preparing a Cu/Cu2O core-shell copper nanoparticle catalyst having high catalytic activity from [Cu3(BTC)2] and NaBH4 via a simple chemical reduction method. Also disclosed is a method of preparing a chalcogenide compound by using the nanoparticle catalyst as a heterogeneous catalyst in a cross-coupling reaction between a chalcogenide precursor compound and a boron-containing compound. The disclosed cross-coupling reaction is performed via a simple process, and the disclosed nanoparticle catalyst is compatible with various substrates under mild reaction conditions and exhibits excellent recyclability without a reduction in catalytic activity.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 13, 2016
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Kang Hyun Park, Sung Kyun Park, Bu Hyun Youn, Jin Kyoon Park, Jung Sub Lee, Balaji Mohan, Seong Wan Jang, Sang Geun Lee, Cho Hye Yoon
  • METHOD OF PREPARING CORE-SHELL COPPER NANOPARTICLES IMMOBILIZED ON ACTIVATED CARBON AND METHOD OF PREPARING CHALCOGENIDE COMPOUND USING NANOPARTICLES AS CATALYST
    Publication number: 20160311768
    Abstract: Disclosed herein is a method of preparing a Cu/Cu2O core-shell copper nanoparticle catalyst having high catalytic activity from [Cu3(BTC)2] and NaBH4 via a simple chemical reduction method. Also disclosed is a method of preparing a chalcogenide compound by using the nanoparticle catalyst as a heterogeneous catalyst in a cross-coupling reaction between a chalcogenide precursor compound and a boron-containing compound. The disclosed cross-coupling reaction is performed via a simple process, and the disclosed nanoparticle catalyst is compatible with various substrates under mild reaction conditions and exhibits excellent recyclability without a reduction in catalytic activity.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 27, 2016
    Inventors: Kang Hyun PARK, Sung Kyun PARK, Bu Hyun YOUN, Jin Kyoon PARK, Jung Sub LEE, Balaji MOHAN, Seong Wan JANG, Sang Geun LEE, Cho Hye YOON