公开(公告)号：US11813600B2

公开(公告)日：2023-11-14

申请号：US16767721

申请日：2018-07-05

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gu-gon Park ,  Eun-jik Lee ,  Dong-chul Park ,  Sung-dae Yim ,  Chang-soo Kim ,  Won-yong Lee ,  Tae-hyun Yang ,  Seok-hee Park ,  Min-jin Kim ,  Young-jun Sohn ,  Byung-chan Bae ,  Seung-gon Kim ,  Dong-won Shin ,  Hwan-yeong Oh

IPC: B01J37/02 ,  H01M4/90 ,  B01J23/755 ,  B01J35/02 ,  B01J21/18 ,  B01J23/42 ,  B01J23/75 ,  B01J23/89 ,  B01J35/00 ,  B01J37/08 ,  B01J37/16 ,  B01J37/34 ,  H01M4/92

CPC classification number: B01J37/0221 ,  B01J21/18 ,  B01J23/42 ,  B01J23/75 ,  B01J23/755 ,  B01J23/892 ,  B01J23/8913 ,  B01J35/002 ,  B01J35/008 ,  B01J35/0013 ,  B01J35/02 ,  B01J37/08 ,  B01J37/16 ,  B01J37/343 ,  H01M4/92

Abstract: The present disclosure is related to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst and, more specifically, to a method for preparing a gaseous- or liquid-nitridation treated core-shell catalyst comprising steps of: nitridation-treating a transition metal precursor core and noble metal precursor shell particles in the presence of a gaseous nitrogen source; or forming a transition metal precursor core and noble metal precursor shell particles, by means of a liquid nitrogen source, and at the same time allowing the nitrogen source to bond with the transition metal precursor and thus allowing nitridation treatment. Therefore, the present disclosure allows a high nitrogen content in the core and thus enables a prepared catalyst to have excellent durability, a small average particle size and high degree of dispersion and uniformity, and thus to be suitable for the fuel cell field.

公开(公告)号：US11376664B2

公开(公告)日：2022-07-05

申请号：US16916974

申请日：2020-06-30

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gu-gon Park ,  Hyun-uk Park ,  Won-yong Lee ,  Sung-dae Yim ,  Min-jin Kim ,  Young-jun Sohn ,  Byungchan Bae ,  Seung-gon Kim ,  Dongwon Shin ,  Hwanyeong Oh ,  Seung Hee Woo ,  So Jeong Lee ,  Hyejin Lee ,  Yoon Young Choi ,  Seok-hee Park ,  Tae-hyun Yang

IPC: B22F9/24 ,  B22F9/04 ,  B22F1/07 ,  B22F1/14 ,  B82Y40/00 ,  B82Y30/00

Abstract: The present disclosure is related to a method to control sizes of core-shell nanoparticles comprising the steps of: manufacturing slurry by irradiating ultrasonic waves to a dispersion solution containing a reducing solvent, a carbon support, a transition metal precursor and a precious metal precursor; manufacturing a solid by filtering the manufactured slurry, followed by washing and drying; and manufacturing a nanoparticle of a transition metal core and a platinum shell by heat-treating the dried solid at a temperature of 450 to 900° C. and a pressure of 1 to 90 bar for 0.5 to 10 hours under N2 atmosphere.

公开(公告)号：US10930936B2

公开(公告)日：2021-02-23

申请号：US16439481

申请日：2019-06-12

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gu-gon Park ,  Hyo-june Lee ,  Chang-soo Kim ,  Won-yong Lee ,  Tae-hyun Yang ,  Sung-dae Yim ,  Min-jin Kim ,  Young-jun Sohn ,  Byung-chan Bae ,  Seung-gon Kim ,  Dong-won Shin ,  Hwan-yeong Oh ,  Seung-hee Woo ,  So-jeong Lee ,  Hye-jin Lee ,  Yoon-young Choi ,  Seok-hee Park

IPC: C23C18/54 ,  H01M4/88 ,  H01M4/92 ,  H01M4/86

Abstract: An apparatus and a method for manufacturing a continuous reactor type core-shell catalyst electrode, which may manufacture a large amount of continuous reactor type core-shell catalyst electrodes by improving coating efficiency of shell metal by using reaction chambers disposed in a circular shape or in a line are provided. The apparatus for manufacturing a continuous reactor type core-shell catalyst electrode includes: a main body; reaction chambers which are disposed plurally in a circular shape inside the main body, store reaction solution inside thereof, are equipped with a movable member and counter electrodes, and are coupled with a reference electrode to a lateral portion thereof; a palladium sheet which is moved by the movable member and immersed in the reaction solution as the movable member moves downward; a power supply which applies a voltage to the electrodes.

公开(公告)号：US11211617B2

公开(公告)日：2021-12-28

申请号：US16271881

申请日：2019-02-11

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Young-jun Sohn ,  Hwan Yeong Oh ,  Dong Won Shin ,  Seung-gon Kim ,  Byungchan Bae ,  Min-jin Kim ,  Sung-dae Yim ,  Tae-hyun Yang ,  Gu-gon Park ,  Won-yong Lee ,  Chang-soo Kim ,  Seok-hee Park

IPC: H01M8/04119 ,  H01M8/04298

Abstract: Disclosed is a fuel cell filter including a body including therein an internal space in which a fluid flows, an inlet port provided in the body and configured to receive a fluid discharged from a fuel cell stack, a gas-water separating membrane disposed in the internal space and configured to block a liquid fluid included in a fluid absorbed in the inlet port from flowing upwards, a discharge port provided in the body and configured to externally discharge the liquid fluid blocked in the gas-water separating membrane, a water absorbent disposed in the internal space and configured to absorb water included in a gaseous fluid passing through the gas-water separating membrane, and a gas outlet port provided in the body and configured to externally discharge gas separated in the gas-water separating membrane.