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JP2007275883A Nanoporous tungsten carbide catalyst and preparation method thereof 有权
标题翻译：纳米碳纳米管催化剂及其制备方法
公开(公告)号：JP2007275883A
公开(公告)日：2007-10-25
申请号：JP2007097266
申请日：2007-04-03
申请人： Postech Academy-Industry Foundation , Postech Foundation , ポステック・アカデミー‐インダストリー・ファウンデーション , ポステック・ファウンデーション
发明人： LEE JAE SUNG , JUNG MOOYOUNG , RAMAN GANESAN , KIM YOUNGKWON
IPC分类号： B01J27/22 , B01J35/04 , B01J35/10 , B01J37/08 , B01J37/10 , C01B32/949 , H01M4/90
CPC分类号： B01J27/22 , H01M4/90 , H01M4/92 , H01M4/925 , H01M8/086 , H01M8/1009 , Y02E60/523 , Y02P70/56
摘要： PROBLEM TO BE SOLVED: To provide a nanoporous tungsten carbide catalyst that can be used as an electrode of a fuel cell, and a preparation method thereof. SOLUTION: Provided are the nanoporous tungsten carbide catalyst, which includes tungsten carbide crystalline particles and has nanopores of a mean pore diameter ranging from 2 nm to 5 nm and a nanopore volume of 0.08 to 0.25 cm 3 per gram of the catalyst, the preparation method thereof, an electrode and a fuel cell, such as a direct methanol fuel cell and a polymer electrolyte membrane fuel cell, to which the nanoporous tungsten carbide catalyst is applied. The nanoporous tungsten carbide catalyst has high electrochemical activity and enhanced resistance to poisoning by carbon monoxide. This catalyst can keep high activity even when used as the electrode of the fuel cell for a long period of time. Since this catalyst has a wide surface area, a metallic active component can be dispersed suitably in this catalyst and consequently a metallic active component-supported catalyst can exhibit higher catalytic activity even when the metallic active component of the amount smaller than that of the conventional noble metal catalyst is supported. The electrode and the fuel cell employing this catalyst can be manufactured at lower costs, respectively. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可用作燃料电池的电极的纳米多孔碳化钨催化剂及其制备方法。解决方案：提供纳米多孔碳化钨催化剂，其包括碳化钨结晶颗粒并且具有平均孔径范围为2nm至5nm和纳米孔体积为0.08至0.25cm 3（SP）的纳米孔 >每克催化剂，其制备方法，电极和燃料电池，例如直接甲醇燃料电池和聚合物电解质膜燃料电池，其中应用纳米多孔碳化钨催化剂。纳米多孔碳化钨催化剂具有高电化学活性和增强的抗一氧化碳中毒性。即使长时间用作燃料电池的电极，该催化剂也能保持高的活性。由于该催化剂具有较宽的表面积，所以金属活性成分可以适当地分散在该催化剂中，因此即使金属活性成分的量少于常规贵金属的金属活性成分，金属活性成分负载型催化剂也能够表现出更高的催化活性金属催化剂。可以分别以较低的成本制造使用该催化剂的电极和燃料电池。版权所有（C）2008，JPO＆INPIT

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