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1.发明授权
公开(公告)号：US5872074A
公开(公告)日：1999-02-16
申请号：US788301
申请日：1997-01-24
申请人： Robert Schulz , Guy Lalande , Jacques Huot , Marie-Chantal Denis , Guoxian Liang , Andre Van Neste , Daniel Guay , Jean-Pol Dodelet
发明人： Robert Schulz , Guy Lalande , Jacques Huot , Marie-Chantal Denis , Guoxian Liang , Andre Van Neste , Daniel Guay , Jean-Pol Dodelet
IPC分类号： B01J32/00 , B01J25/00 , B01J37/00 , B01J37/06 , B22F1/00 , B22F5/00 , B22F9/16 , B22F9/20 , C01B3/00 , C22B3/04 , C22C1/08 , H01M4/90 , H01M4/92 , H01M8/06 , B01U23/58 , C22C38/08 , H01M4/86
CPC分类号： B82Y30/00 , B01J25/00 , B01J37/06 , B22F1/0018 , B22F9/16 , C01B3/0031 , C01B3/0042 , H01M4/90 , H01M4/921 , H01M8/065 , B22F2009/041 , B22F2998/10 , B22F2999/00 , Y02E60/327 , Y02P70/56 , Y10S420/90 , Y10S502/523 , Y10S977/779
摘要： Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel cells. Such materials can be manufactured by preparing a nanocrystalline material consisting of a metastable composite or alloy of at least two different chemical elements. To be nanocrystalline, this material must have a crystalline structure with the grain size lower than 100 nm. Then, the so prepared nanocrystalline material can be subjected to a leaching treatment in order to eliminate partially or totally one of the elements of the composite or alloy. This leaching results in nanocrystalline materials having a porous structure and, thereby, the requested high specific surface.
摘要翻译： 具有高比表面积的浸出的纳米晶体材料特别适用于在制造电极中储存氢或作为催化剂或电催化剂，特别是用于燃料电池。 这种材料可以通过制备由至少两种不同化学元素的亚稳态复合材料或合金组成的纳米晶体材料来制造。 为了成为纳米晶体，该材料必须具有晶粒尺寸低于100nm的晶体结构。 然后，如此制备的纳米晶体材料可以进行浸出处理，以便消除复合材料或合金的部分或全部元素之一。 这种浸出导致具有多孔结构的纳米晶体材料，从而产生所要求的高比表面积。
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公开(公告)号：US06828040B2
公开(公告)日：2004-12-07
申请号：US10150010
申请日：2002-05-20
IPC分类号： B32B1504
CPC分类号： H01M8/021 , H01M8/0213 , H01M8/0228 , Y10T428/12625 , Y10T428/12951 , Y10T428/12972 , Y10T428/12979 , Y10T428/263 , Y10T428/265 , Y10T428/30
摘要： The invention relates to an improved composite used as a bipolar separator plate in fuel cells. The composite of the invention comprises a steel substrate having a carbon coating thereon, the carbon coating comprises a carbon layer derived by pyrolysis of an acetylenic polymer having a content of carbon of at least 90%, the carbon layer protects the substrate against corrosion and improves long term contact resistivity, the polymer is soluble at a temperature below 110° C. in an organic solvent, and the carbon layer contacts said steel substrate. A process for preparing the composite according to the invention is also disclosed.
摘要翻译： 本发明涉及用作燃料电池中的双极隔板的改进的复合材料。 本发明的复合材料包括其上具有碳涂层的钢基材，碳涂层包括通过热分解碳含量至少为90％的炔属聚合物衍生的碳层，碳层保护基材免受腐蚀和改善 长期接触电阻率，聚合物在有机溶剂中在110℃以下的温度下溶解，碳层与所述钢基材接触。 还公开了根据本发明的复合材料的制备方法。
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公开(公告)号：US08580704B2
公开(公告)日：2013-11-12
申请号：US13127744
申请日：2009-10-02
IPC分类号： B01J35/10
CPC分类号： B01J23/745 , B01J21/18 , B01J23/75 , B01J35/1028 , B01J37/0018 , B01J37/084 , H01M4/90 , H01M4/9083 , H01M2008/1095 , Y02E60/50
摘要： A catalyst precursor comprising (A) a microporous support, (B) a non-noble metal precursor, and (C) a pore-filler, wherein the micropores of the microporous support are filled with the pore-filler and the non-noble metal precursor so that the micropore surface area of the catalyst precursor is substantially smaller than the micropore surface area of the support when the pore-filler and the non-noble metal precursor are absent is provided. Also, a catalyst comprising the above catalyst precursor, wherein the catalyst precursor has been pyrolysed so that the micropore surface area of the catalyst is substantially larger than the micropore surface area of catalyst precursor, with the proviso that the pyrolysis is performed in the presence of a gas that is a nitrogen precursor when the microporous support, the non-noble metal precursor and the pore-filler are not nitrogen precursors is also provided. Methods of producing the catalyst precursor and the catalyst are provided.
摘要翻译： 一种催化剂前体，其包括（A）微孔载体，（B）非贵金属前体和（C）孔填料，其中微孔载体的微孔填充有孔填料和非贵金属 提供了当孔填料和非贵金属前体不存在时，催化剂前体的微孔表面积基本上小于载体的微孔表面积。 此外，包含上述催化剂前体的催化剂，其中催化剂前体已被热解，使得催化剂的微孔表面积基本上大于催化剂前体的微孔表面积，条件是热解是在 还提供了当微孔载体，非贵金属前体和孔填料不是氮前体时为氮前体的气体。 提供了制备催化剂前体和催化剂的方法。
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公开(公告)号：US07056479B2
公开(公告)日：2006-06-06
申请号：US10275435
申请日：2001-05-10
IPC分类号： B01J19/08 , C23C16/26 , D01F19/127
CPC分类号： B82Y30/00 , B01J19/088 , B01J19/126 , B01J2219/0809 , B01J2219/0828 , B01J2219/083 , B01J2219/0841 , B01J2219/0875 , B01J2219/0892 , B01J2219/0894 , B82Y40/00 , C01B32/162 , C23C16/0281 , C23C16/26 , C23C16/4418
摘要： Carbon nanotubes are formed on carbon paper by first depositing a metal catalyst on the carbon paper, and passing a feedstock gas containing a source of carbon over the substrate while applying an electrical current thereto to heat the substrate sufficiently to generate a reaction between the catalyst and the feedstock gas. Alternatively, inert gas under pressure is passed through a tubular metal cathode while passing an electric current through the cathode to produce a plasma of fine catalyst particles which are deposited on a porous carbon substrate, and a feedstock gas containing a source of carbon is passed over the substrate to cause a reaction between the catalyst and the carbon source resulting in the formation of carbon nanotubes.
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公开(公告)号：US20110294658A1
公开(公告)日：2011-12-01
申请号：US13127744
申请日：2009-10-02
CPC分类号： B01J23/745 , B01J21/18 , B01J23/75 , B01J35/1028 , B01J37/0018 , B01J37/084 , H01M4/90 , H01M4/9083 , H01M2008/1095 , Y02E60/50
摘要： A catalyst precursor comprising (A) a microporous support, (B) a non-noble metal precursor, and (C) a pore-filler, wherein the micropores of the microporous support are filled with the pore-filler and the non-noble metal precursor so that the micropore surface area of the catalyst precursor is substantially smaller than the micropore surface area of the support when the pore-filler and the non-noble metal precursor are absent is provided. Also, a catalyst comprising the above catalyst precursor, wherein the catalyst precursor has been pyrolysed so that the micropore surface area of the catalyst is substantially larger than the micropore surface area of catalyst precursor, with the proviso that the pyrolysis is performed in the presence of a gas that is a nitrogen precursor when the microporous support, the non-noble metal precursor and the pore-filler are not nitrogen precursors is also provided. Methods of producing the catalyst precursor and the catalyst are provided.
摘要翻译： 一种催化剂前体，其包括（A）微孔载体，（B）非贵金属前体和（C）孔填料，其中微孔载体的微孔填充有孔填料和非贵金属 提供了当孔填料和非贵金属前体不存在时，催化剂前体的微孔表面积基本上小于载体的微孔表面积。 另外，包含上述催化剂前体的催化剂，其中催化剂前体已被热解，使得催化剂的微孔表面积基本上大于催化剂前体的微孔表面积，条件是热解是在 还提供了当微孔载体，非贵金属前体和孔填料不是氮前体时为氮前体的气体。 提供了制备催化剂前体和催化剂的方法。
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