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公开(公告)号：US20220077471A1
公开(公告)日：2022-03-10
申请号：US17466453
申请日：2021-09-03
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Eun Jik LEE , Kyunghee KIM , Sung-dae YIM , Seok-hee PARK , Min-ji KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Won-yong LEE , Tae-hyun YANG
Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.
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公开(公告)号：US20230420696A1
公开(公告)日：2023-12-28
申请号：US18465471
申请日：2023-09-12
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Gu-gon PARK , Eun Jik LEE , Kyunghee KIM , Sung-dae YIM , Seok-hee PARK , Min-ji KIM , Young-jun SOHN , Byungchan BAE , Seung-gon KIM , Dongwon SHIN , Hwanyeong OH , Seung Hee WOO , So Jeong LEE , Hyejin LEE , Yoon Young CHOI , Won-yong LEE , Tae-hyun YANG
CPC classification number: H01M4/926 , H01M4/8657 , B01J23/38 , B01J37/00 , B01J35/008 , B01J23/34 , B01J23/28 , B01J23/30
Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.
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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
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.
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公开(公告)号：US20230187659A1
公开(公告)日：2023-06-15
申请号：US18080113
申请日：2022-12-13
Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
Inventor： Min Jin KIM , Young Jun SOHN , Hwan Yeong OH , Yoon Young CHOI , Seung Gon KIM , Won Yong LEE , Tae Hyun YANG , Seok Hee PARK , Sung Dae YIM , Seung Hee WOO , Yun Sik KANG , Gu Gon PARK , Eun Jik LEE , So Jeong LEE , Byung Chan BAE , Dong Won SHIN , Hye Jin LEE , Dong Hwan PARK
IPC: H01M8/0258 , H01M8/04298 , H01M8/1004
CPC classification number: H01M8/0258 , H01M8/04305 , H01M8/1004
Abstract: A modeling method for designing a flow field of a fuel cell including a membrane electrode assembly including a catalyst layer and an electrolyte membrane, a gas diffusion layer, a flow field, and a bipolar plate includes modeling using a numerical model derived from a governing equation including a mass conservation equation of species, a fluid momentum in a porous media, and a modified Butler-Volmer's equation and outputting an oxygen diffusion characteristic in a catalyst layer from the modeling result.
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