专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5225391A Electrocatalyst for anode 失效
标题翻译：阳极电极
公开(公告)号：US5225391A
公开(公告)日：1993-07-06
申请号：US840083
申请日：1992-02-24
申请人： Paul Stonehart , Nobuo Yamamoto , Kazunori Tsurumi , Toshihide Nakamura , Noriaki Hara
发明人： Paul Stonehart , Nobuo Yamamoto , Kazunori Tsurumi , Toshihide Nakamura , Noriaki Hara
IPC分类号： H01M4/90 , B01J23/89 , H01M4/86 , H01M4/92
CPC分类号： H01M4/925 , B01J23/8986 , H01M4/92 , H01M4/926 , H01M2004/8684 , H01M2300/0008 , H01M2300/0082
摘要： Disclosed is an electrocatalyst which comprises an inorganic support and four-element alloy essentially consisting of 10 to 39 atomic percent of platinum, 30 to 5 atomic percent of nickel, 30 to 5 atomic percent of cobalt and 30 to 3 atomic percent of manganese supported on the inorganic support. The electrocatalyst possesses excellent anti-poisoning against carbon monoxide.

2. 发明授权

US5208207A Electrocatalyst 失效
标题翻译：电催化剂
公开(公告)号：US5208207A
公开(公告)日：1993-05-04
申请号：US841795
申请日：1992-02-26
申请人： Paul Stonehart , Masahiro Watanabe , Nobuo Yamamoto , Toshihide Nakamura , Noriaki Hara , Kazunori Tsurumi
发明人： Paul Stonehart , Masahiro Watanabe , Nobuo Yamamoto , Toshihide Nakamura , Noriaki Hara , Kazunori Tsurumi
IPC分类号： B01J23/46 , C22C5/04 , H01M4/86 , H01M4/90 , H01M4/92
CPC分类号： B01J23/462 , H01M4/92 , H01M4/926 , H01M2004/8684 , H01M2300/0008 , H01M2300/0082
摘要： Disclosed is an electrocatalyst which comprises an inorganic support and a ternary alloy essentially consisting of platinum-palladium-ruthenium supported on the support. The electrocatalyst possesses excellent anti-poisoning against carbon monoxide.
摘要翻译：公开了一种电催化剂，其包含无机载体和基本上由负载在载体上的铂 - 钯 - 钌组成的三元合金。电催化剂具有优异的一氧化碳抗中毒作用。

3. 发明授权

US5189005A Electrocatalyst and process of preparing same 失效
标题翻译：电催化剂及其制备方法
公开(公告)号：US5189005A
公开(公告)日：1993-02-23
申请号：US863118
申请日：1992-04-03
申请人： Masahiro Watanabe , Paul Stonehart , Kazunori Tsurumi , Nobuo Yamamoto , Noriaki Hara , Toshihide Nakamura
发明人： Masahiro Watanabe , Paul Stonehart , Kazunori Tsurumi , Nobuo Yamamoto , Noriaki Hara , Toshihide Nakamura
IPC分类号： B01J23/89 , B01J35/00 , H01M4/86 , H01M4/92
CPC分类号： H01M4/926 , B01J23/892 , B01J35/0033 , H01M4/92 , H01M2004/8689 , H01M2300/0008
摘要： Disclosed herein are a platinum alloy catalyst comprising an electroconductive support and platinum-nickel-cobalt alloy particles having an ordered structure supported on the electroconductive support, and a process of preparing the catalyst. The catalyst possesses higher activity and longer durability because of its ordered structure.

4. 发明授权

US5275999A Process of preparing catalyst supporting highly dispersed metal particles 失效
标题翻译：制备支持高度分散的金属颗粒的催化剂的方法
公开(公告)号：US5275999A
公开(公告)日：1994-01-04
申请号：US985207
申请日：1992-12-03
申请人： Kazunori Tsurumi , Haruko Sugimoto , Nobuo Yamamoto , Toshihide Nakamura , Paul Stonehart
发明人： Kazunori Tsurumi , Haruko Sugimoto , Nobuo Yamamoto , Toshihide Nakamura , Paul Stonehart
IPC分类号： B01J23/40 , B01J37/02 , B01J37/03 , B01J37/16 , H01M4/92 , B01J23/42 , B01J23/44 , B01J23/46
CPC分类号： H01M4/925 , B01J23/40 , B01J37/0215 , B01J37/031 , H01M4/92 , H01M4/926 , H01M4/921
摘要： Disclosed is a process of preparing a catalyst supporting highly metal particles comprising, in the presence of carbon monoxide in a solution containing a metal-containing ion and a support on which metal particles produced by reduction of the metal-containing ion are supported, reducing by means of a reductant the metal-containing ion to the corresponding metal particles which are then supported on the support. According to the process of the present invention, because of the presence of the carbon monoxide which is supposed to have a function of depressing the deposition of a new metal particle present around the metal particles supported on the support, that is, the growth of the metal particles and another function of preventing the agglomeration among the metal particles supported, the catalyst of excellent properties having the metal particles supported and monodispersed on the support with the narrow particle size distribution can be prepared of which an average particle size is not more than 20 .ANG.. After the preparation of the catalyst, the carbon monoxide can be easily taken out from the system so that no harmful effects are produced by the employment of the carbon monoxide.
摘要翻译：公开了一种制备支持高度金属颗粒的催化剂的方法，该催化剂包括在含有金属的离子的溶液中存在一氧化碳的载体和通过还原含金属的离子产生的金属颗粒被负载的载体上，由将含金属离子还原成相应的金属颗粒的装置，然后将载体支撑在载体上。根据本发明的方法，由于存在一氧化碳，其被认为具有抑制存在于支撑在载体上的金属颗粒周围的新的金属颗粒的沉积的功能，即，金属颗粒和防止金属颗粒之间的附聚的另一个功能，可以制备平均粒度不大于20的具有负载并单分散在具有窄粒度分布的载体上的金属颗粒的优异性能的催化剂（Aangstroem）。在制备催化剂之后，一氧化碳可以容易地从系统中取出，从而通过使用一氧化碳不会产生有害影响。

5. 发明授权

US5275998A Process of preparing catalyst supporting highly dispersed metal particles 失效
标题翻译：制备支持高度分散的金属颗粒的催化剂的方法
公开(公告)号：US5275998A
公开(公告)日：1994-01-04
申请号：US985206
申请日：1992-12-03
申请人： Kazunori Tsurumi , Haruko Sugimoto , Nobuo Yamamoto , Toshihide Nakamura , Paul Stonehart
发明人： Kazunori Tsurumi , Haruko Sugimoto , Nobuo Yamamoto , Toshihide Nakamura , Paul Stonehart
IPC分类号： B01J23/40 , B01J37/02 , B01J37/03 , B01J37/16 , B01J23/42 , B01J23/44 , B01J23/46
CPC分类号： B01J23/40 , B01J37/0215 , B01J37/031 , B01J37/16
摘要： Disclosed is a process of preparing a catalyst supporting highly metal particles comprising, in the presence of ethylene and/or acetylene in a solution containing a metal-containing ion and a support on which metal particles produced by reduction of the metal-containing ion are supported, reducing by means of a reductant the metal-containing ion to the corresponding metal particles which are then supported on the support. According to the process of this invention, because of the presence of the ethylene and/or acetylene which is supposed to have a function of depressing the deposition of new metal particles present around the metal particles supported on the support, that is, the growth of the metal particles and another function of preventing the agglomeration among the metal particles supported, the catalyst of the desired properties can be prepared.
摘要翻译：公开了一种制备支持高度金属颗粒的催化剂的方法，该催化剂在乙烯和/或乙炔存在下，在含有金属的离子的溶液和载体上包含含金属离子还原产生金属颗粒的载体通过还原剂将含金属离子还原成相应的金属颗粒，然后将载体支撑在载体上。根据本发明的方法，由于存在乙烯和/或乙炔，其被认为具有抑制存在于支撑在载体上的金属颗粒周围的新的金属颗粒的沉积的功能，即，金属颗粒和防止负载的金属颗粒之间的附聚的另一个功能，可以制备所需性质的催化剂。

6. 发明授权

US5480851A Process of preparing catalyst supporting highly dispersed metal particles 失效
标题翻译：制备支持高度分散的金属颗粒的催化剂的方法
公开(公告)号：US5480851A
公开(公告)日：1996-01-02
申请号：US88073
申请日：1993-07-06
申请人： Kazunori Tsurumi , Paul Stonehart
发明人： Kazunori Tsurumi , Paul Stonehart
IPC分类号： B01J23/42 , B01J23/40 , B01J23/44 , B01J37/03 , B01J37/16 , H01M4/92 , B01J29/04 , B01J31/00
CPC分类号： H01M4/926 , B01J23/40 , B01J37/031 , H01M4/92 , H01M4/921
摘要： Disclosed herein is a process of preparing a catalyst having narrow particle size distribution and supported with monodispersed metal particles of which a particle size is about less than 20 .ANG.. In the present invention, propargyl alcohol is employed in place of a sulfur-containing agent for supporting the metal particles on a support thereby avoiding the contamination of the sulfur component and the high temperature treatment for decomposing the sulfur-containing agent. Accordingly, the resulting catalyst contains no sulfur contaminant and substantially no agglomerated metal particles.
摘要翻译：本文公开了一种制备具有窄粒度分布的催化剂的方法，并且其粒径约小于20埃的单分散金属颗粒负载。在本发明中，使用炔丙醇代替用于将金属颗粒负载在载体上的含硫试剂，从而避免硫成分的污染和用于分解含硫试剂的高温处理。因此，所得催化剂不含硫污染物并且基本上不含附聚金属颗粒。

7. 发明授权

US5374598A Process of preparing metal supported catalyst having high surface area 失效
标题翻译：制备具有高表面积的金属负载催化剂的方法
公开(公告)号：US5374598A
公开(公告)日：1994-12-20
申请号：US989151
申请日：1992-12-11
申请人： Paul Stonehart , Kazunori Tsurumi
发明人： Paul Stonehart , Kazunori Tsurumi
IPC分类号： B01J23/42 , B01J21/18 , B01J23/38 , B01J23/44 , B01J23/52 , B01J35/10 , B01J37/16
CPC分类号： B01J37/16 , B01J23/38 , B01J21/18 , B01J23/42 , B01J23/44 , B01J23/52 , B01J35/10
摘要： Disclosed herewith is a process of preparing a metal supported catalyst having a high surface area comprising reducing one or more metal-containing ions in a solution employing one or more reducing agents selected from the group consisting of thiourea and thioacetamide, and supporting the reduced metal or metals onto a support. The thiourea and the thioacetamide exhibit more excellent activity and durability than those of ordinary reducing agents such as sodium borohydride and other sulfur-containing reducing agents.
摘要翻译：本发明公开了一种制备具有高表面积的金属负载型催化剂的方法，其包括使用一种或多种选自硫脲和硫代乙酰胺的还原剂，在还原剂中还原一种或多种含金属离子，并且还原金属或金属支撑。硫脲和硫代乙酰胺表现出比普通还原剂如硼氢化钠和其它含硫还原剂更好的活性和耐久性。

8. 发明授权

US5350727A Process of preparing catalyst supporting highly dispersed platinum particles 失效
标题翻译：制备支持高度分散的铂颗粒的催化剂的工艺
公开(公告)号：US5350727A
公开(公告)日：1994-09-27
申请号：US88082
申请日：1993-07-06
申请人： Kazunori Tsurumi , Paul Stonehart
发明人： Kazunori Tsurumi , Paul Stonehart
IPC分类号： B01J23/42 , B01J37/02 , B01J37/03 , B01J37/16 , H01M4/92
CPC分类号： H01M4/926 , B01J23/42 , B01J37/0211 , B01J37/031 , H01M4/92
摘要： Disclosed herein is a process of preparing a catalyst having narrow particle size distribution and supported with monodispersed platinum particles of which a particle size is about less than 20 .ANG.. In the present invention, allyl alcohol and hydrazinc hydrate are employed in place of a sulfur-containing agent for supporting the platinum particles on a support thereby avoiding the contamination of the sulfur component and the high temperature treatment for decomposing the sulfur-containing agent. Accordingly, the resulting catalyst contains no sulfur contaminant and substantially no agglomerated platinum particles.
摘要翻译：本文公开了一种制备具有窄粒度分布的催化剂的方法，其由粒径约小于20埃的单分散铂颗粒负载。在本发明中，使用烯丙醇和水合肼代替用于将铂颗粒负载在载体上的含硫剂，从而避免了硫成分的污染和用于分解含硫剂的高温处理。因此，所得催化剂不含硫污染物，并且基本上不含聚集的铂颗粒。

9. 发明授权

US5846670A Gas diffusion electrode for electrochemical cell and process of preparing same 失效
标题翻译：用于电化学电池的气体扩散电极及其制备方法
公开(公告)号：US5846670A
公开(公告)日：1998-12-08
申请号：US858898
申请日：1997-05-19
申请人： Masahiro Watanabe , Kazunori Tsurumi , Noriaki Hara
发明人： Masahiro Watanabe , Kazunori Tsurumi , Noriaki Hara
IPC分类号： H01M4/92 , H01M4/96 , H01M4/29 , H01M4/88
CPC分类号： H01M4/926 , H01M4/96
摘要： Disclosed are a gas diffusion electrode for an electrochemical cell which comprises a catalyst layer formed by binding, by means of poiytotrafluoroethylene, catalyst-supporting carbon black and catalyst-non-supporting carbon black having a fluorinated polyolofine film on substantially whole surface, the catalyst layer being integrated on a substrate, and a process of preparing same. Since the carbon black employed for the formation of the gas network in the catalyst layer of the gas diffusion electrode having the above constitution in accordance with the present invention is completely hydrophobically treated, no electrolyte permeates this portion and the carbon black exhibits high hydrophobicity so that the wet-proofing is maintained even after the long operation period to enable the gas supply to the catalyst particles so as to provide the gas diffusion electrode with a long life and high electrode performances.
摘要翻译：公开了一种用于电化学电池的气体扩散电极，其包括通过聚四氟乙烯在催化剂负载的炭黑和在基本上整个表面上具有氟化聚四烯酚膜的催化剂不支撑炭黑结合形成的催化剂层，催化剂层整合在基板上，以及其制备方法。由于在根据本发明的上述结构的气体扩散电极的催化剂层中用于形成气体网络的炭黑被完全疏水化处理，所以没有电解质渗透该部分，并且炭黑表现出高的疏水性，因此即使经过长时间操作，也能保持湿气保护，能够使催化剂粒子的气体供给，从而为气体扩散电极提供长寿命和高电极性能。

10. 发明授权

US4985386A Carburized platinum catalysts and process for preparing the same employing acid amine salts 失效
标题翻译：渗碳铂催化剂及其制备方法使用酸胺盐
公开(公告)号：US4985386A
公开(公告)日：1991-01-15
申请号：US312684
申请日：1989-02-17
申请人： Kazunori Tsurumi , Toshihide Nakamura , Akira Sato
发明人： Kazunori Tsurumi , Toshihide Nakamura , Akira Sato
IPC分类号： B01J27/22 , H01M4/86 , H01M4/88 , H01M4/90 , H01M4/92
CPC分类号： H01M4/926 , B01J27/22 , H01M4/90 , H01M4/92 , H01M2004/8689 , H01M2300/0008
摘要： Disclosed herein are a platinum catalyst and a process for preparing the same. The catalyst comprises carbon supports and the carbides of (i) platinum and of (ii) one or more metals selected from the group consisting of nickel, cobalt, chromium and iron, and if necessary of (iii) manganese, supported on the carbon supports. The catalyst possesses superior catalyst performance because the catalyst metals are firmly fixed to the carbon supports by means of the carburizing.The process for preparing the platinum catalyst includes alloying the metals by employing their organic acid amine salts. This alloying requires a lower temperature than that in a conventional process so that the movement of the metals which leads to agglomeration thereof can be advantageously prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式