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公开(公告)号:US20210188656A1
公开(公告)日:2021-06-24
申请号:US17097084
申请日:2020-11-13
Inventor: WooChul JUNG , Jun Kyu KIM , Bonjae KOO
Abstract: There is provided a method for preparation of oxide support-nanoparticle composites, in which metal nanoparticles decorate with uniform size and distribution on the surface of an oxide support, and thus, high performance oxide support-nanoparticle composites that can be applied in the fields of heterogeneous catalysis can be provided.
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公开(公告)号:US20220170899A1
公开(公告)日:2022-06-02
申请号:US17411202
申请日:2021-08-25
Inventor: WooChul JUNG , Il-Doo KIM , Jun Kyu Kim , Ji-Soo JANG
IPC: G01N33/00 , G01N33/497 , C01G55/00
Abstract: Provided is a method of producing a metal nanoparticle-oxide support complex structure, in which metal nanoparticles uniform in size are evenly distributed on the surface of oxide supports. A gas sensor with improved gas sensing ability and durability may be provided by using the same.
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公开(公告)号:US20230138222A1
公开(公告)日:2023-05-04
申请号:US17438485
申请日:2020-12-30
Inventor: WooChul JUNG , Dae-Kwang LIM , Jinwook KIM
IPC: H01M8/083 , H01M8/0217 , H01M8/1246
Abstract: A solid oxide fuel cell according to this invention can provide a solid oxide fuel cell with improved performance, by loading an alkali-based promoter in an anode.
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公开(公告)号:US20220370990A1
公开(公告)日:2022-11-24
申请号:US17533240
申请日:2021-11-23
Inventor: WooChul JUNG , IL-Doo KIM , Jun Kyu KIM , Dong-Ha KIM
IPC: B01J23/83 , B01J23/14 , B01J35/06 , B01J35/00 , B01J37/04 , B01J37/08 , B01J37/18 , B01J37/34 , G01N31/10
Abstract: Provided are a composite structure, in which metal nanoparticle-perovskite oxide is bound to metal oxide supports (i.e., sensing materials), and a preparation method thereof. The composite structure has improved durability, in which metal nanoparticles uniform in size are evenly distributed on the surface of perovskite oxide. Provided is also a high-performance gas sensor having excellent target gas detection performances by including the composite structure.
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公开(公告)号:US20240297320A1
公开(公告)日:2024-09-05
申请号:US18659291
申请日:2024-05-09
Inventor: WooChul JUNG , Dae-Kwang LIM , Jinwook KIM
IPC: H01M8/083 , H01M8/0217 , H01M8/12 , H01M8/1246
CPC classification number: H01M8/083 , H01M8/0217 , H01M8/1246 , H01M2008/1293
Abstract: A solid oxide fuel cell according to this invention can provide a solid oxide fuel cell with improved performance, by loading an alkali-based promoter in an anode.
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公开(公告)号:US20230387430A1
公开(公告)日:2023-11-30
申请号:US17604490
申请日:2021-04-19
Inventor: WooChul JUNG , Jinwook KIM , Donghwan OH
IPC: H01M8/04082 , C25D3/12 , C25D7/04 , C25D9/06
CPC classification number: H01M8/04201 , C25D3/12 , C25D7/04 , C25D9/06 , H01M8/1246
Abstract: A composite coating layer for a solid oxide fuel cell member according to the present disclosure includes a nickel layer that coats at least a portion of the surface of the solid oxide fuel cell member, and a lanthanum oxide layer that coats at least a portion of the surface of the nickel layer, and thereby, has an effect of suppressing the volatilization of chromium from the solid oxide fuel cell member even under high temperature and long-term conditions.
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公开(公告)号:US20230121988A1
公开(公告)日:2023-04-20
申请号:US17965892
申请日:2022-10-14
Inventor: WooChul JUNG , Jun Hyuk Kim , Se Jong Ahn
Abstract: The perovskite compound according to the invention has a cubic perovskite structure, has high catalytic activity in oxygen reduction and evolution reactions, and has excellent durability, and thus, can be used as a catalyst of electrochemical devices, particularly as a fuel cell catalyst.
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