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
作者： Li Wan , Tianyue Luo , Shimin Wang , Xianbao Wang , Zhiguang Guo
DOI: 10.1016/J.COMPSCITECH.2015.03.015
关键词: Nanotechnology 、 Graphene nanocomposites 、 Iodide 、 Platinum 、 Materials science 、 Energy conversion efficiency 、 Tin oxide 、 Composite material 、 Triiodide 、 Electrode 、 Chemical engineering 、 Cyclic voltammetry
摘要: Abstract In this study, one- and two-step chemical reduction methods were compared in terms of the production Pt/graphene nanocomposites with low platinum (Pt)-loadings. Cyclic voltammetry electrical impedance analysis indicated that composites displayed high electrocatalytic activity respect to iodide/triiodide. Furthermore, Pt/RGO deposited on fluorine-doped tin oxide substrates by drop coating applied as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The energy conversion efficiency DSSCs based CEs (prepared using one-step method) was only 0.9% lower than Pt CE-based cell.
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