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公开(公告)号：US20200152996A1
公开(公告)日：2020-05-14
申请号：US16386395
申请日：2019-04-17
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn KIM , Min Jae LEE , Ju Sung LEE , Katie Heeyum LIM , So Young LEE , Hee-Young PARK , Hyun Seo PARK , Jin Young KIM , Sung Jong YOO , Jong Hyun JANG
IPC: H01M4/88 , H01M8/1004 , H01M4/86 , H01M4/92 , H01M8/103
Abstract: Disclosed is a method for producing an electrode for a high temperature polymer electrolyte membrane fuel cell. According to the method, a catalyst slurry containing a uniformly dispersed binder is used to produce an electrode. Also disclosed are a membrane electrode assembly using the electrode and a high temperature polymer electrolyte membrane fuel cell including the membrane electrode assembly. Uniform distribution of the binder leads to improvements in the performance and reproducibility of the fuel cell.
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12.发明申请公开(公告)号：US20190341624A1
公开(公告)日：2019-11-07
申请号：US16268856
申请日：2019-02-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Hee-Young PARK , Jea-woo JUNG , Hyoung-Juhn KIM , Dirk HENKENSMEIER , Sung Jong YOO , Jin Young KIM , So Young LEE , Hyun Seo PARK
IPC: H01M4/92
Abstract: The present disclosure relates to a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst. More particularly, the present disclosure provides a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst using a stabilizer, the method including the steps of: (a) mixing a platinum precursor, a transition metal precursor, carbon, stabilizer and a reducing agent solution, and carrying out washing and drying to obtain carbon-supported platinum-transition metal alloy nanoparticles; (b) mixing the carbon-supported platinum-transition metal alloy nanoparticles with an acetic acid solution, and carrying out washing and drying to obtain acetic acid-treated nanoparticles; and (c) heat treating the acetic acid-treated nanoparticles. Thus, it is possible to obtain a carbon-supported platinum-transition metal alloy nanoparticle catalyst through a more simple and eco-friendly process as compared to the related art, and to apply the catalyst to a high-performance and high-durability fuel cell catalyst.
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公开(公告)号：US20190071786A1
公开(公告)日：2019-03-07
申请号：US16122640
申请日：2018-09-05
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Seunghoe CHOE , Youngseung NA , Hye Jin LEE , Hyoung-Juhn KIM , Dirk Henkensmeier , Sung Jong YOO , Jin Young KIM , So Young LEE , Hyun Seo PARK
Abstract: Provided is a membrane electrode assembly for a proton exchange membrane water electrolyzer, including: an oxygen electrode including an iridium oxide (IrO2) layer which is an electrodeposited oxygen electrode layer on a titanium (Ti) layer which is a diffusion layer; a hydrogen electrode in which a hydrogen electrode layer is formed on a diffusion layer; and an electrolyte membrane placed between the oxygen electrode layer and the hydrogen electrode layer, in which a portion of the pores of the Ti diffusion layer are filled with an electrolyte of the electrolyte membrane.
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14.发明申请公开(公告)号：US20180254490A1
公开(公告)日：2018-09-06
申请号：US15910304
申请日：2018-03-02
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong YOO , Jue-hyuk JANG , So Young LEE , Jin Young KIM , Jong Hyun JANG , Hyoung-Juhn KIM , Namgee JUNG , Hyun Seo PARK
CPC classification number: H01M4/9041 , B01J21/18 , B01J23/75 , H01M4/88 , H01M4/9083 , H01M2008/1095
Abstract: A catalyst containing a carbon support and a core-shell nanoparticle supported on the carbon support, wherein a core of the core-shell nanoparticle is cobalt metal not containing a heterogeneous element and the shell contains carbon. The catalyst for an oxygen reduction reaction of the present disclosure is a catalyst in which the cobalt core-carbon shell nanoparticle is supported on the carbon support through ligand stabilization and heat treatment. The catalyst can be synthesized to have high dispersibility. In particular, it can be used as an electrode catalyst of a cathode to improve the oxygen reduction activity and durability of a fuel cell operating under an alkaline atmosphere.
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公开(公告)号：US20170197828A1
公开(公告)日：2017-07-13
申请号：US15326118
申请日：2015-01-27
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Chang Won YOON , Suk Woo NAM , Yeong Cheon KIM , Jonghee HAN , Sung Pil YOON , Hyoung-Juhn KIM , Taekhyun OH , Tae Hoon LIM , Jin Young KIM , Sun-Hee CHOI , Hyung Chul HAM
Abstract: The present invention provides a hydrogen generating apparatus and a hydrogen generating method, wherein the hydrogen generating apparatus generates hydrogen by dehydrating formic acid, and comprises: a reactor for containing water and a heterogeneous catalyst; a formic acid feeder for feeding formic acid into the reactor; and a moisture remover for removing moisture generated from the reactor.
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Patent Agency Ranking
16.发明申请ULTRAL-LOW LOADING OF Pt-DECORATED Ni ELECTROCATALYST, MANUFACTURING METHOD OF THE SAME AND ANION EXCHANGE MEMBRANE WATER ELECTROLYZER USING THE SAME 审中-公开Pt装饰的Ni电解质的超低负载，其制造方法和使用其的阴离子交换膜电解电容器公开(公告)号：US20170051419A1
公开(公告)日：2017-02-23
申请号：US15241798
申请日：2016-08-19
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Soo-Kil KIM , Sang Hyun AHN , Hyoung-Juhn KIM , Jin Young KIM , Sung Jong YOO , Dirk HENKENSMEIER , Jonghee HAN , Jaeyune RYU
CPC classification number: C25B11/0478 , C23C18/54 , C25B1/10 , C25B9/10 , C25B11/0405 , C25B11/0415 , C25D3/12 , C25D5/54 , Y02E60/366
Abstract: Provided is an electrocatalyst for anion exchange membrane water electrolysis, including a carbonaceous material, and nickel electrodeposited on the carbonaceous material, wherein nickel is partially substituted with platinum and the substitution with platinum provides increased hydrogen evolution activity as compared to the same electrocatalyst before substitution with platinum. Also provided are a method for preparing the electrocatalyst and an anion exchange membrane water electrolyzer using the same. The nickel electrocatalyst coated with an ultralow loading amount of platinum for anion exchange membrane water electrolysis shows excellent hydrogen evolution activity and has a small thickness of catalyst, thereby providing high mass transfer and high catalyst availability. In addition, the electrocatalyst uses a particle-type electrode to facilitate emission of hydrogen bubbles generated during hydrogen evolution reaction and oxygen bubbles generated during oxygen evolution reaction, and requires low cost for preparation to provide high cost-efficiency.
Abstract translation: 本发明提供了一种阴离子交换膜水电解用电解质，包括碳质材料和电沉积在碳质材料上的镍，其中镍部分被铂取代，与铂取代相比，与铂取代相同的电催化剂相比，提供的析氢活性提高， 铂。 还提供了制备电极催化剂的方法和使用其的阴离子交换膜水电解槽。 涂覆有超低负载量的铂用于阴离子交换膜水电解的镍电催化剂显示出优异的析氢活性并具有小的催化剂厚度，从而提供高的传质和高的催化剂可用性。 此外，电极催化剂使用粒子型电极来促进放氢反应期间产生的氢气泡的发射和在析氧反应期间产生的氧气泡，并且需要低成本的制备以提供高成本效率。
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17.发明申请公开(公告)号：US20160126483A1
公开(公告)日：2016-05-05
申请号：US14720416
申请日：2015-05-22
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jin Young KIM , Doh-Kwon LEE , Hong Gon KIM , Bong Soo KIM , Lee Seul OH , Min Ah PARK , Hae Jung SON , Min Jae KO
CPC classification number: H01L51/422 , H01L51/006 , Y02E10/549
Abstract: Provided is a new ternary Zn2SnO4 (ZSO) electron-transporting electrode of a CH3NH3PbI3 perovskite solar cell as an alternative to the conventional TiO2 electrode. The ZSO-based perovskite solar cell exhibits faster electron transport (˜10 times) and superior charge-collecting capability compared to the TiO2-based perovskite solar cell with similar thickness and energy conversion efficiency.
Abstract translation: 提供了作为常规TiO 2电极的替代物的CH 3 NH 3 PbI 3钙钛矿太阳能电池的新的三元Zn 2 SnO 4（ZSO）电子传输电极。 与具有类似厚度和能量转换效率的TiO 2基钙钛矿太阳能电池相比，ZSO基钙钛矿太阳能电池表现出更快的电子传输（〜10倍）和优异的电荷收集能力。
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18.发明公开公开(公告)号：US20230163318A1
公开(公告)日：2023-05-25
申请号：US17862644
申请日：2022-07-12
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong YOO , Dong Wook LEE , Bora SEO , So Young LEE , Hee-Young PARK , Hyun Seo PARK , Jin Young KIM , Hyoung-Juhn KIM , Jong Hyun JANG , Daeil CHOI
IPC: H01M4/92
CPC classification number: H01M4/926
Abstract: The present disclosure relates to a catalyst for a fuel cell, a fuel cell including the same and a method for preparing the catalyst for a fuel cell. More specifically, the catalyst for a fuel cell according to the present disclosure can exhibit superior catalytic activity as compared to the existing catalyst even when the catalyst metal is used at a very low content because some metal of the metal nanoparticles distributed on a carbon support is replaced with catalyst metal single atoms.
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公开(公告)号：US20210020954A1
公开(公告)日：2021-01-21
申请号：US16841371
申请日：2020-04-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hee-Young PARK , Jong Hyun JANG , Hyean-Yeol PARK , Jea-Woo JUNG , Katie Heeyum LIM , Hyoung-Juhn KIM , Dirk HENKENSMEIR , Sung Jong YOO , Jin Young KIM , Hyun Seo PARK , So Young LEE
IPC: H01M4/92 , H01M4/88 , H01M8/1004
Abstract: The present disclosure relates to a fuel cell catalyst and a manufacturing method thereof. The fuel cell catalyst of the present disclosure can be used to manufacture a membrane electrode assembly having a catalyst layer of high density and high dispersion by solving the problem of aggregation of catalyst particles occurring during the formation of the catalyst layer, by using a catalyst including a polydopamine-coated support.
In addition, the method for manufacturing a fuel cell catalyst of the present disclosure does not require a solvent because the catalyst including the polydopamine-coated support and the halide in solid phase are simply heat-treated by solid-to-solid dry synthesis and allows manufacturing of a fuel cell catalyst in short time because a washing process using a solvent and an extraction process for sampling are unnecessary after the synthesis.-
公开(公告)号：US20200335800A1
公开(公告)日：2020-10-22
申请号：US16850750
申请日：2020-04-16
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jin Young KIM , Jong Min KIM , Hee-Young PARK , So Young LEE , Hyun Seo PARK , Sung Jong YOO , Jong Hyun JANG , Hyoung-Juhn KIM , Chang Won YOON , Jonghee HAN
Abstract: The present disclosure relates to a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell comprising the same, and a method for producing the same. The present disclosure has a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, the present disclosure is designed to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.
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