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1.发明授权公开(公告)号：US09947934B2
公开(公告)日：2018-04-17
申请号：US14786632
申请日：2014-04-14
发明人： Ken Akizuki , Atsushi Ohma , Tetsuya Mashio , Yoshitaka Ono , Shinichi Takahashi
IPC分类号： H01M4/86 , H01M4/92 , H01M4/88 , H01M4/90 , H01M8/10 , B22F9/02 , C22F1/14 , C22F1/02 , H01M8/1004 , H01M8/1018
CPC分类号： H01M4/8657 , B22F9/02 , C22F1/02 , C22F1/14 , H01M4/8663 , H01M4/8885 , H01M4/9008 , H01M4/92 , H01M4/925 , H01M4/926 , H01M8/1004 , H01M2004/8684 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： The present invention has an object to provide a catalyst having excellent oxygen reduction reaction activity. The present invention relates to a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein a specific surface area of the catalyst per support weight is 715 m2/g support or more or a covering ratio of the catalyst metal with an electrolyte is less than 0.5, and an amount of an acidic group of the catalyst per support weight is 0.75 mmol/g support or less.
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公开(公告)号：US10135074B2
公开(公告)日：2018-11-20
申请号：US15025354
申请日：2014-09-09
发明人： Shinichi Takahashi , Atsushi Ohma , Tetsuya Mashio , Ken Akizuki
IPC分类号： H01M4/92 , H01M4/86 , H01M4/90 , B01J21/18 , B01J23/40 , B01J35/10 , H01M8/1004 , C01B31/00 , B01J35/00 , B01J37/08 , H01M8/1018
摘要： The present invention is to provide a carbon powder that can provide a catalyst having excellent durability and a catalyst. A carbon powder for catalyst of the present invention is a carbon powder containing as a main component carbon, which has a BET specific surface area per unit weight of 900 m2/g or greater, and a ratio R′ (D′/G intensity ratio) of peak intensity for a D′-band (D′ intensity) measured in the vicinity of 1620 cm−1 to peak intensity for a G-band (G intensity) measured in the vicinity of 1580 cm−1 by Raman spectroscopy of 0.6 or less.
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3.发明授权公开(公告)号：US11031604B2
公开(公告)日：2021-06-08
申请号：US16529031
申请日：2019-08-01
发明人： Tetsuya Mashio , Yoshihisa Furuya , Ken Akizuki , Atsushi Ohma
IPC分类号： H01M4/86 , H01M4/92 , H01M8/1004 , H01M8/1018 , H01M8/0234
摘要： Provided is a catalyst having excellent gas transportability. Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more.
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4.发明授权公开(公告)号：US10535881B2
公开(公告)日：2020-01-14
申请号：US14786479
申请日：2014-04-14
发明人： Tetsuya Mashio , Yoshihisa Furuya , Ken Akizuki , Atsushi Ohma
IPC分类号： H01M4/92 , H01M8/10 , H01M4/86 , H01M8/1004 , H01M8/0234 , H01M8/1018
摘要： [Object] Provided is a catalyst having excellent gas transportability.[Solving Means] Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more.
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5.发明申请FUEL CELL ELECTRODE CATALYST LAYER, FUEL CELL ELECTRODE, FUEL CELL MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL 有权燃料电池催化剂层，燃料电池，燃料电池电极组件和燃料电池公开(公告)号：US20140287343A1
公开(公告)日：2014-09-25
申请号：US14356270
申请日：2012-09-21
发明人： Yoshitaka Ono , Atsushi Ohma , Norifumi Horibe , Kenichi Toyoshima , Ken Akizuki
IPC分类号： H01M4/86
CPC分类号： H01M4/8657 , H01M4/8605 , H01M4/8642 , H01M4/8663 , H01M4/8668 , H01M4/8892 , H01M4/926 , H01M2250/20 , Y02T90/32
摘要： A fuel cell electrode catalyst layer (13) of the preset invention includes: a catalyst (131b); a support (131a) that supports the catalyst; and two or more proton-conductive materials (133) different in dry mass value per mole of a proton-donating group, the proton-conductive materials being in contact with at least a part of the catalyst and at least a part of the support. Then, a proton-conductive material in which a dry mass value per mole of the proton-donating group is highest among the proton-conductive materials is in contact with at least a part of the catalyst, and has a largest contact ratio with a surface of the catalyst.
摘要翻译： 本发明的燃料电池用电极催化剂层（13）包括：催化剂（131b）; 支撑催化剂的载体（131a） 和每质子供体基团的干质量差异的两种或更多种质子传导材料（133），质子传导材料与至少一部分催化剂和至少一部分载体接触。 然后，其中质子传导材料中每质量供体基团的干质量值最高的质子传导材料与至少一部分催化剂接触，并且与表面具有最大的接触比 的催化剂。
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公开(公告)号：US09847532B2
公开(公告)日：2017-12-19
申请号：US14356270
申请日：2012-09-21
发明人： Yoshitaka Ono , Atsushi Ohma , Norifumi Horibe , Kenichi Toyoshima , Ken Akizuki
CPC分类号： H01M4/8657 , H01M4/8605 , H01M4/8642 , H01M4/8663 , H01M4/8668 , H01M4/8892 , H01M4/926 , H01M2250/20 , Y02T90/32
摘要： A fuel cell electrode catalyst layer (13) of the preset invention includes: a catalyst (131b); a support (131a) that supports the catalyst; and two or more proton-conductive materials (133) different in dry mass value per mole of a proton-donating group, the proton-conductive materials being in contact with at least a part of the catalyst and at least a part of the support. Then, a proton-conductive material in which a dry mass value per mole of the proton-donating group is highest among the proton-conductive materials is in contact with at least a part of the catalyst, and has a largest contact ratio with a surface of the catalyst.
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7.发明申请公开(公告)号：US20160064744A1
公开(公告)日：2016-03-03
申请号：US14786470
申请日：2014-04-14
发明人： Tetsuya MASHIO , Yoshihisa FURUYA , Ken Akizuki , Atsushi OHMA , Takahiro MORISHITA , Yoshio SHODAI
摘要： ObjectProvided is a catalyst having an excellent durability and being capable of lowering the cost of a fuel cell.Solving MeansDisclosed is a catalyst configured to include a support and alloy particles including platinum and a metal component other than platinum supported on the support, wherein the catalyst includes mesopores having a radius of 1 to 10 nm originated from the support, wherein a mode radius of the mesopores is in a range of 2.5 to 10 nm, and wherein the alloy particles have a catalyst function, and at least a portion of the alloy particles is supported inside the mesopores.
摘要翻译： 提供的目的是具有优异的耐久性并且能够降低燃料电池的成本的催化剂。 解决方法公开了一种催化剂，其被配置为包括载体和包含铂的合金颗粒和负载在载体上的铂以外的金属成分，其中所述催化剂包括起始于载体的半径为1至10nm的介孔，其中模式半径 的介孔在2.5〜10nm的范围内，其中合金粒子具有催化剂功能，并且至少一部分合金粒子被支撑在中孔内。
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