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公开(公告)号:US20060188775A1
公开(公告)日:2006-08-24
申请号:US11354213
申请日:2006-02-14
申请人: Andrew Mance , Mei Cai , Cecilia Carriquiry , Martin Ruthkosky
发明人: Andrew Mance , Mei Cai , Cecilia Carriquiry , Martin Ruthkosky
CPC分类号: H01M4/926 , H01M4/8652 , H01M4/8657 , H01M4/9016 , H01M4/9083 , H01M4/92 , H01M8/1004 , H01M8/1007 , H01M2004/8689
摘要: An oxygen reducing electrode for a fuel cell comprises carbon particles as support for catalyst particles. The carbon particles are coated with smaller particles of a metal oxide and/or metal phosphate (for example, TiO2 particles) to impede destructive oxidation (corrosion) of the carbon particles while permitting suitable electrical conductivity between the carbon particles. The catalyst is carried on the smaller particle-coated carbon particles. Titanium dioxide particles can be dispersed on carbon particles suspended in a liquid medium by ultrasonic decomposition of a suitable titanium precursor compound.
摘要翻译: 用于燃料电池的氧还原电极包括作为催化剂颗粒的载体的碳颗粒。 碳颗粒涂覆有更小的金属氧化物和/或金属磷酸盐颗粒(例如TiO 2 2颗粒)以阻止碳颗粒的破坏性氧化(腐蚀),同时允许碳颗粒之间的适当导电性 碳颗粒。 催化剂承载在较小颗粒包覆的碳颗粒上。 二氧化钛颗粒可以通过合适的钛前体化合物的超声分解而分散在悬浮在液体介质中的碳颗粒上。