• 专利标题:   Platinum cluster used as highly active catalyst for electrode used for capacitor and fuel cell, comprises platinum particles with particle diameter of below specified value supported by carbon material containing graphene.
  • 专利号:   JP2010129385-A, JP5470509-B2
  • 发明人:   AKITA T, HOMMA I, KAYAMA M, NAKAMURA J, OKAZAKI K, YU E J, HONMA I
  • 专利权人:   DOKURITSU GYOSEI HOJIN SANGYO GIJUTSU SO, UNIV TSUKUBA, DOKURITSU GYOSEI HOJIN SANGYO GIJUTSU SO, UNIV TSUKUBA
  • 国际专利分类:   B01J023/42, B01J023/46, C01B031/02, H01G009/058, H01M004/88, H01M004/92, H01M004/96, H01G011/22
  • 专利详细信息:   JP2010129385-A 10 Jun 2010 H01M-004/92 201044 Pages: 14 Japanese
  • 申请详细信息:   JP2010129385-A JP303041 27 Nov 2008
  • 优先权号:   JP303041

▎ 摘  要

NOVELTY - A platinum cluster comprises platinum particles supported by carbon material containing graphene. The platinum particles have particle diameter of 1 nm or less. USE - Platinum cluster is used as highly active catalyst for electrode used for capacitor and fuel cell used in electric-power generating apparatus, electric vehicle and notebook personal computer. ADVANTAGE - The platinum cluster is manufactured economically, and has high electrode activity. The fuel cell having electrode containing platinum cluster has excellent durability and carbon monoxide-proof characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) control method of platinum particles in platinum cluster, which involves supporting platinum particles having magnitude of less than 1 nm on the surface of carbon material comprising layered graphene or two or more-fold graphene synthesized by peeling monoatomic graphite layer from graphite; and (2) manufacture of platinum cluster, which involves mixing platinum solution containing precursor of platinum particles with carbon material comprising layered graphene or two or more-fold graphene, evaporating solvent of platinum solution, and heat-processing the mixture at 300-500 degrees C for 1-10 hours in reduced environment.