• 文献标题:   Ultrasonic-assisted synthesis of N-doped graphene-supported binary PdAu nanoflowers for enhanced electro-oxidation of ethylene glycol and glycerol
  • 文献类型:   Article
  • 作  者:   XU H, YAN B, ZHANG K, WANG J, LI SM, WANG CQ, SHIRAISHI Y, DU YK, YANG P
  • 作者关键词:   ultrasonic, ndoped graphene, pdau nanoflower, ethylene glycol glycerol
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Soochow Univ
  • 被引频次:   66
  • DOI:   10.1016/j.electacta.2017.05.146
  • 出版年:   2017

▎ 摘  要

The design of cost-efficient catalysts for the electrooxidation of small organic molecules are highly desirable for the commercial application of direct fuel cells. Shape-controlled PdAu alloys with N-doped graphene support are highly efficient electrocatalysts for the electrooxidation of ethylene glycol and glycerol in the alkaline media. Impressively, the newly generated Pd1Au1-NF/NG catalysts prepared by a facile ultrasonic-assisted synthetic method in this work exhibit the unprecedentedly high mass activities with 12.8 and 8.7 A mg(-1) towards ethylene glycol and glycerol oxidation, which are 10.07- and 12.25-fold enhancements than that of commercial Pd/C catalyst (1.27 and 0.71 A mg(-1)), respectively. This work may open a new way in enlarging the surface area and ultimately maximizing the electrocatalytic activities by tuning the morphology of metallic alloy and introducing the appropriate catalyst supports. (C) 2017 Elsevier Ltd. All rights reserved.