• 文献标题:   Enhanced Catalytic Activity of Pt Supported on Nitrogen-Doped Reduced Graphene Oxide Electrodes for Fuel Cells
  • 文献类型:   Article
  • 作  者:   SUN QZ, PARK SJ, KIM S
  • 作者关键词:   nitrogendoped graphene, catalytic activity, pt nanoparticle, methanol oxidation, fuel cell
  • 出版物名称:   JOURNAL OF NANOSCIENCE NANOTECHNOLOGY
  • ISSN:   1533-4880 EI 1533-4899
  • 通讯作者地址:   Pusan Natl Univ
  • 被引频次:   1
  • DOI:   10.1166/jnn.2015.11566
  • 出版年:   2015

▎ 摘  要

We report an efficient method for the synthesis of nitrogen-doped reduced graphene oxide supported Pt nanocatalysts (Pt/N-AGO). Nitrogen-doped reduced graphene oxide (N-RGO) was prepared by pyrolysis of graphene oxide with cyanamide as a nitrogen source. Then, the Pt nanoparticles were deposited over N-RGO by one-step chemical polyol reduction process. The morphology and structure of as-prepared catalysts were characterized by transmission electron microscopy (TEM), and X-ray diffraction (XRD). Subsequently, electrocatalytic activities of the catalysts were evaluated by cyclic voltammetry (CV). As a result, the Pt/N-AGO catalysts exhibit the superior electrochemical activity toward methanol oxidation in compared with that of Pt loaded on undoped reduced graphene oxide (Pt/RGO) and Pt/carbon blacks (Pt/C). This was mainly attributed to the better distribution of Pt nanoparticles as well as the synergistic electrochemical effects of the nitrogen doped supports. These results demonstrate that N-RGO could be a promising candidate as a high performance catalyst support for a fuel cell application.