公开(公告)号：US20200346199A1

公开(公告)日：2020-11-05

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 ,  B01J23/42 ,  B01J23/75 ,  B01J23/755 ,  B01J35/02 ,  B01J21/18

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：US20200168914A1

公开(公告)日：2020-05-28

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: H01M4/88 ,  H01M4/92 ,  H01M4/86

Abstract: The present disclosure provides 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. The apparatus for manufacturing a continuous reactor type core-shell catalyst electrode according to one exemplary embodiment of the present disclosure includes: a main body which is provided with a fixed shaft inside thereof and an upper portion of which is opened and closed by being detached from or attached to the fixed shaft; reaction chambers which are disposed plurally in a circular shape inside the main body, store reaction solution inside thereof, are equipped with movable members and counter electrodes, and a lateral portion of which is coupled with a reference electrode; a power transmission member which transmits power to the movable member; 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; and a solution injection member which injects a copper precursor-containing solution or a platinum precursor-containing solution into the reaction solution.

公开(公告)号：US20230402619A1

公开(公告)日：2023-12-14

申请号：US18188740

申请日：2023-03-23

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Eun Jik LEE ,  Gu-gon PARK ,  DongJe LEE ,  Sung-dae YIM ,  Seok-hee PARK ,  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 ,  Yun Sik KANG ,  Won-yong LEE ,  Tae-hyun YANG

IPC: H01M4/92 ,  H01M4/90 ,  H01M4/86

CPC classification number: H01M4/921 ,  H01M4/9016 ,  H01M4/8652

Abstract: A method for preparing a platinum alloy catalyst using an oxide coating according to an embodiment of the present disclosure comprises: a first step of preparing a dispersion by mixing a commercial platinum catalyst and a transition metal precursor with a solvent; a second step of preparing a catalyst by putting an ultrasonic tip into the dispersion prepared through the first step and performing an ultrasonic process; a third step of performing a primary heat treatment process on the catalyst prepared through the second step; a fourth step of performing an acid treatment process on the catalyst that has undergone the primary heat treatment process through the third step; and a fifth step of preparing a platinum alloy catalyst by performing a secondary heat treatment process on the catalyst that has undergone the acid treatment process through the fourth step.

公开(公告)号：US20210170488A1

公开(公告)日：2021-06-10

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: B22F9/04 ,  B22F1/00

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：US20190252698A1

公开(公告)日：2019-08-15

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

CPC classification number: H01M8/04164 ,  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.