• 文献标题:   Synthesis of graphene-supported onedimensional nanoporous Pt based catalysts, and their enhanced performance on methanol electro-oxidation
  • 文献类型:   Article
  • 作  者:   HONG LJ, HAO YF, YANG YY, YUAN JH, NIU L
  • 作者关键词:   pt catalyst, graphene, nanowire, nanoporou, direct methanol fuel cell
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   Zhejiang Normal Univ
  • 被引频次:   13
  • DOI:   10.1088/0957-4484/26/4/045604
  • 出版年:   2015

▎ 摘  要

A novel approach is developed to synthesize PtIr or Pt nanowires (NWs) supported on the reduced graphene oxide (RGO) using Te NWs as template based on the replacement reaction. The resulting RGO-supported PtIr and Pt electrocatalysts are characterized by transmission electron microscopy (TEM), energy-dispersive x-ray spectroscopy and electrochemical techniques. TEM images show that these Pt based catalysts are uniformly distributed in the matrix of graphene with a characteristic of one- dimensional (1D) nanoporous structure. As one of promising anode materials used in the direct methanol fuel cells, these 1D nanoporous PtIr/RGO (or Pt/RGO) hybrids exhibit an enlarged electroactive surface and enhanced catalytic activity toward the methanol reaction relative to those PtIr or Pt NWs without graphene support.