• 文献标题:   A single-step route for large-scale synthesis of core-shell palladium@platinum dendritic nanocrystals/reduced graphene oxide with enhanced electrocatalytic properties
  • 文献类型:   Article
  • 作  者:   LIU Q, XU YR, WANG AJ, FENG JJ
  • 作者关键词:   coreshell dendritic nanocrystal, reduced graphene oxide, poly ethylene oxide, methanol oxidation reaction, ethanol oxidation reaction
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:   Zhejiang Normal Univ
  • 被引频次:   49
  • DOI:   10.1016/j.jpowsour.2015.10.079
  • 出版年:   2016

▎ 摘  要

In this report, a facile, seed-less and single-step method is developed for large-scale synthesis of core-shell Pd@Pt dendritic nanocrystals anchored on reduced graphene oxide (Pd@Pt DNC/rGO) under mild conditions. Poly(ethylene oxide) is employed as a structure-directing and stabilizing agent. Compared with commercial Pt/C (20 wt%) and Pd/C (20 wt%) catalysts, the as-obtained nanocomposite has large electrochemically active surface area (114.15 m(2)g(metal)(-1)), and shows superior catalytic activity and stability With the mass activities of 1210.0 and 1128.5 mA mg(metal)(-1) for methanol and ethanol oxidation, respectively. The improved catalytic activity is mainly the consequence of the synergistic effects between Pd and Pt of the dendritic structures, as well as rGO as a support. (C) 2015 Elsevier B.V. All rights reserved.