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公开(公告)号:US20120301812A1
公开(公告)日:2012-11-29
申请号:US13430420
申请日:2012-03-26
申请人: Jian-ping (Jim) Zheng , Wei Zhu , Changchun Zeng , Zhiyong Liang , Chun Zhang , Ben Wang
发明人: Jian-ping (Jim) Zheng , Wei Zhu , Changchun Zeng , Zhiyong Liang , Chun Zhang , Ben Wang
CPC分类号: H01M4/8807 , B82Y30/00 , C04B2235/5248 , C04B2235/5256 , C04B2235/526 , C04B2235/5264 , C04B2235/5288 , H01M4/885 , H01M4/926 , H01M8/0234 , H01M8/0245 , H01M2008/1095 , Y02P70/56
摘要: A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The method can include the steps of placing buckypaper in a vessel with a catalyst-precursor salt and a fluid. The temperature and pressure conditions within the vessel are modified so as to place the fluid in the supercritical state. The supercritical state of the supercritical fluid containing the precursor salt is maintained for period of time to impregnate the buckypaper with the catalyst-precursor salt. Catalyst nanoparticles are deposited on the buckypaper. The supercritical fluid and the precursor are removed to form a metal catalyst impregnated buckypaper.
摘要翻译: 一种用于燃料电池的膜电极组件(MEA),其包括催化剂层及其制造方法。 催化剂层可以包括设置在压缩纸上的多个催化剂纳米颗粒,例如铂。 该方法可以包括以下步骤:将消泡剂放置在具有催化剂 - 前体盐和流体的容器中。 修改容器内的温度和压力条件以使流体处于超临界状态。 将含有前体盐的超临界流体的超临界状态保持一段时间,以便用催化剂 - 前体盐浸渍压克力。 催化剂纳米颗粒沉积在消泡剂上。 去除超临界流体和前体以形成金属催化剂浸渍的消泡剂。