Patents by Inventor Injoon Jang

Injoon Jang 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: 11173481
    Abstract: Disclosed are a metal single-atom catalyst and a method for preparing the same. The method uses a minimal amount of chemicals and is thus environmentally friendly compared to conventional chemical and/or physical methods. In addition, the method enables the preparation of a single-atom catalyst in a simple and economical manner without the need for further treatment such as acid treatment or heat treatment. Furthermore, the method is universally applicable to the preparation of single-atom catalysts irrespective of the kinds of metals and supports, unlike conventional methods that suffer from very limited choices of metal materials and supports. Therefore, the method can be widely utilized to prepare various types of metal single-atom catalysts. All metal atoms in the metal single-atom catalyst can participate in catalytic reactions. This optimal atom utilization achieves maximum reactivity per unit mass and can minimize the amount of the metal used, which is very economical.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 16, 2021
    Assignees: Korea Institute of Science and Technology, Global Frontier Center for Multiscale Energy Systems
    Inventors: Sung Jong Yoo, Injoon Jang, Hee-Young Park, So Young Lee, Hyun Seo Park, Jin Young Kim, Jong Hyun Jang, Hyoung-Juhn Kim
  • Publication number: 20210159512
    Abstract: The present disclosure relates to a method for preparing a metal single-atom catalyst for a fuel cell. The method for preparing a metal single-atom catalyst uses a relatively lower amount of chemical substances as compared to the conventional methods and thus is eco-friendly, uses no liquid through the whole process and avoids a need for additional steps for separating and/or washing the catalyst after its synthesis, thereby allowing simplification of the process, and can produce a single-atom catalyst at low cost. In addition, unlike the conventional methods having a limitation in metallic materials, the method can be applied in common regardless of types of metals, and thus is significantly advantageous in that it can be applied widely to obtain various types of metal single-atom catalysts. Further, in the method for preparing a metal single-atom catalyst, metal atoms totally participate in the reaction. Thus, the method can minimize the usage of metal to provide high cost-efficiency.
    Type: Application
    Filed: February 26, 2020
    Publication date: May 27, 2021
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Sung Jong YOO, Injoon JANG, Hee-Young PARK, So Young LEE, Hyun Seo PARK, Jin Young KIM, Jong Hyun JANG, Hyoung-Juhn KIM
  • Patent number: 10850270
    Abstract: Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: December 1, 2020
    Assignees: Korea Institute of Science and Technology, Global Frontier Center for Multiscale Energy Systems
    Inventors: Sung Jong Yoo, Injoon Jang, So Young Lee, Hyun Seo Park, Jin Young Kim, Jong Hyun Jang, Hyoung-Juhn Kim
  • Publication number: 20200230589
    Abstract: Disclosed are a metal single-atom catalyst and a method for preparing the same. The method uses a minimal amount of chemicals and is thus environmentally friendly compared to conventional chemical and/or physical methods. In addition, the method enables the preparation of a single-atom catalyst in a simple and economical manner without the need for further treatment such as acid treatment or heat treatment. Furthermore, the method is universally applicable to the preparation of single-atom catalysts irrespective of the kinds of metals and supports, unlike conventional methods that suffer from very limited choices of metal materials and supports. Therefore, the method can be widely utilized to prepare various types of metal single-atom catalysts. All metal atoms in the metal single-atom catalyst can participate in catalytic reactions. This optimal atom utilization achieves maximum reactivity per unit mass and can minimize the amount of the metal used, which is very economical.
    Type: Application
    Filed: August 7, 2019
    Publication date: July 23, 2020
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Sung Jong YOO, Injoon JANG, Hee-Young PARK, So Young LEE, Hyun Seo PARK, Jin Young KIM, Jong Hyun JANG, Hyoung-Juhn KIM
  • Patent number: 10435802
    Abstract: Provided are a cathode catalyst for water electrolysis devices and a method for preparing the same. More specifically, provided are a cathode catalyst for water electrolysis devices that exhibits both high activity and high electrical conductivity, compared to conventional transition metal phosphide catalysts, and a method for preparing the same.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: October 8, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Jong Yoo, Injoon Jang, So Young Lee, Jin Young Kim, Jong Hyun Jang, Hyoung-Juhn Kim, Jonghee Han, Hyun Seo Park
  • Publication number: 20190134620
    Abstract: Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 9, 2019
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Sung Jong YOO, Injoon JANG, So Young LEE, Hyun Seo PARK, Jin Young KIM, Jong Hyun JANG, Hyoung-Juhn KIM
  • Publication number: 20180258544
    Abstract: Provided are a cathode catalyst for water electrolysis devices and a method for preparing the same. More specifically, provided are a cathode catalyst for water electrolysis devices that exhibits both high activity and high electrical conductivity, compared to conventional transition metal phosphide catalysts, and a method for preparing the same.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 13, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Jong Yoo, Injoon Jang, So Young Lee, Jin Young Kim, Jong Hyun Jang, Hyoung-Juhn Kim, Jonghee Han, Hyun Seo Park