• 专利标题:   Preparation of platinum-graphene catalyst for proton exchange membrane fuel cell, involves dripping graphene oxide solution in reverse micelle system containing aqueous solution of chloroplatinic acid, and supporting platinum on graphene.
  • 专利号:   WO2012088681-A1, US2013252138-A1, CN103180039-A, EP2659966-A1, JP2014507260-W, EP2659966-B1, JP5841169-B2, EP2659966-A4
  • 发明人:   ZHOU M, ZHONG L, WANG Y
  • 专利权人:   OCEANS KING LIGHTING SCI TECHNOLOGY CO, OCEANS KING LIGHTING SCI TECHNOLOGY CO, HAIYANGWANG LIGHTING TECHNOLOGY CO LTD, OCEANS KING LIGHTING SCI TECHNOLOGY CO, OCEAN S KING LIGHTING SCI TECHNOLOGY, OCEANS KING LIGHTING SCI TECHNOLOGY CO, OCEAN S KING LIGHTING SCI TECHNOLOGY
  • 国际专利分类:   B01J021/18, B01J023/42, B01J037/16, B01J037/34, H01M004/92, B01J037/04, B01J037/06, B01J037/08, B01J037/12, C01B031/02, H01M004/86, H01M004/88, H01M008/10, B01J037/00, B01J037/02
  • 专利详细信息:   WO2012088681-A1 05 Jul 2012 B01J-023/42 201246 Pages: 19 Chinese
  • 申请详细信息:   WO2012088681-A1 WOCN080457 29 Dec 2010
  • 优先权号:   CN80069678, EP861347, JP546551, WOCN080457, US13990154

▎ 摘  要

NOVELTY - Graphite powder is oxidized, obtained graphite oxide is added into water, dispersed, obtained graphene oxide solution is dripped into reverse micelle system comprising surfactant, cosurfactant, oil phase and aqueous solution of chloroplatinic acid, then, reducing agent is dripped under heating in water bath for carrying out reduction reaction, demulsifier is dripped into obtained emulsion of platinum and graphene, platinum is supported on graphene carrier, obtained platinum-supported graphene is filtered, cleaned and dried, to obtain platinum-graphene catalyst. USE - Preparation of platinum-graphene catalyst used for proton exchange membrane fuel cell (all claimed). ADVANTAGE - The method provides platinum-graphene catalyst having improved stability and uniformly distributed nanoparticles. The graphene in the catalyst has two-dimensional ductility. DETAILED DESCRIPTION - Graphite powder is oxidized, to obtain graphite oxide, based on Hummers method. Obtained graphite oxide is added into water and dispersed under ultrasound, to obtain graphene oxide solution having uniformly distributed single layer. A reverse micelle system comprising surfactant, cosurfactant, oil phase and aqueous solution of chloroplatinic acid is prepared at room temperature. The graphene oxide solution is dripped into the reverse micelle system, and then, reducing agent is dripped under heating in a water bath for carrying out reduction reaction, to obtain emulsion of platinum and graphene. Demulsifier is dripped into the emulsion, and platinum is supported on graphene carrier. Obtained platinum-supported graphene is filtered, cleaned and dried, to obtain platinum-graphene catalyst.