发明授权
- 专利标题: Carbon nanotube and nanofiber film-based membrane electrode assemblies
- 专利标题(中): 碳纳米管和纳米纤维膜基膜电极组件
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申请号: US12505070申请日: 2009-07-17
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公开(公告)号: US08415012B2公开(公告)日: 2013-04-09
- 发明人: Jian-ping Zheng , Zhiyong Liang , Ben Wang , Chun Zhang , Wei Zhu
- 申请人: Jian-ping Zheng , Zhiyong Liang , Ben Wang , Chun Zhang , Wei Zhu
- 申请人地址: US FL Tallahassee
- 专利权人: Florida State University Research Foundation, Inc.
- 当前专利权人: Florida State University Research Foundation, Inc.
- 当前专利权人地址: US FL Tallahassee
- 代理机构: Novak Druce Connolly Bove + Quigg LLP
- 主分类号: H01M8/10
- IPC分类号: H01M8/10 ; H01M4/88
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 catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 gPt/kW or less.
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