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  • 文献标题:   Pt/graphene nanocomposites with low Pt-loadings: Synthesis through one- and two-step chemical reduction methods and their use as promising counter electrodes for DSSCs
  • 文献类型:   Article
  • 作　　者:   WAN L, LUO TY, WANG SM, WANG XB, GUO ZG, XIONG HY, DONG BH, ZHAO L, XU ZX, ZHANG XH, LI J, ZHANG QP, WANG B
  • 作者关键词:   functional composite, electrical propertie, scanning electron microscopy sem, transmission electron microscopy tem
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:   Hubei Univ
  • 被引频次:   7
  • DOI:   10.1016/j.compscitech.2015.03.015
  • 出版年:   2015

▎ 摘　　要

In this study, one- and two-step chemical reduction methods were compared in terms of the production of Pt/graphene nanocomposites with low platinum (Pt)-loadings. Cyclic voltammetry and electrical impedance analysis indicated that the composites displayed high electrocatalytic activity with respect to the reduction of iodide/triiodide. Furthermore, the Pt/RGO composites were deposited on fluorine-doped tin oxide substrates by drop coating and were applied as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The energy conversion efficiency of the DSSCs based on Pt/RGO CEs (prepared using the one-step reduction method) was only 0.9% lower than that of the Pt CE-based cell. (C) 2015 Elsevier Ltd. All rights reserved.