-
公开(公告)号:US20060024535A1
公开(公告)日:2006-02-02
申请号:US11049541
申请日:2005-02-02
申请人: Juan Figueroa , Cynthia Lundgren
发明人: Juan Figueroa , Cynthia Lundgren
CPC分类号: C23C14/165 , B01J23/652 , B01J37/0238 , B01J37/347 , C23C14/352 , C23C14/5873 , H01M4/8605 , H01M4/9041 , H01M4/92 , H01M4/921 , H01M8/02 , H01M8/1004
摘要: A catalyst comprises vapor-deposited, at least partially de-alloyed PtXaAlb, wherein X is Mo or W, a is at least 0.001 and b is at least 2.4(1+a). The catalyst is particularly useful as an electro-oxidation catalyst in a fuel cell and is preferred for use in a reformate fuel cell.
摘要翻译: 一种催化剂包括气相沉积,至少部分脱合金化的PtX,其中X为Mo或W,a为至少0.001,b为至少2.4 (1 + a)。 催化剂特别可用作燃料电池中的电氧化催化剂,并且优选用于重整油燃料电池中。
-
公开(公告)号:US20050255370A1
公开(公告)日:2005-11-17
申请号:US10518330
申请日:2003-06-30
申请人: Juan Figueroa , Cynthia Lundgren
发明人: Juan Figueroa , Cynthia Lundgren
IPC分类号: H01M4/90 , B01J21/18 , B01J25/00 , B01J31/00 , B01J35/06 , B01J37/02 , B01J37/34 , C23C14/18 , H01M4/86 , H01M4/88 , H01M4/92 , H01M4/94 , H01M4/96 , H01M8/02 , H01M8/10
CPC分类号: H01M4/8807 , B01J25/00 , B01J35/065 , B01J37/0238 , B01J37/347 , C23C14/185 , H01M4/8605 , H01M4/881 , H01M4/8867 , H01M4/92 , H01M4/921 , H01M4/925 , H01M4/926 , H01M4/94 , H01M8/0234 , H01M8/1011 , H01M2008/1095 , Y02E60/523
摘要: The invention provides a catalyst useful in a proton exchange membrane containing fuel cell for the electrooxidation of fuels prepared by the chemical activation of vapor deposited substantially semicrystalline PtXaAlb onto a substrate, wherein X is selected from the group consisting of Ru, Rh, Mo, W, V, Hf, Zr, Nb and Co, and a is at least 0.001, and b is at least 0.85·(1+a), with the proviso that when a=1 and b=8, X is only selected from the group consisting of W, V, Hf, Zr, Nb, and Co. These catalysts have an onset voltage for the electrooxidation of methanol of less than about 240 mV versus a saturated calomel electrode (SCE). They are useful in making diffusion backing electrodes and catalyst coated membranes for use in fuel cells.
摘要翻译: 本发明提供了一种可用于含有燃料电池的质子交换膜的催化剂,其中所述燃料电池用于通过将基本上半结晶的PtXaAlb气相沉积的化学活化制备在基底上的燃料的电氧化,其中X选自Ru,Rh,Mo,W ,V,Hf,Zr,Nb和Co,a为至少0.001,b为至少0.85(1 + a),条件是当a = 1和b = 8时,X仅选自 由W,V,Hf,Zr,Nb和Co组成的组。这些催化剂具有与饱和甘汞电极(SCE)相比小于约240mV的甲醇电氧化的起始电压。 它们可用于制造用于燃料电池的扩散背衬电极和催化剂涂覆的膜。
-