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论文类型：期刊论文

发表时间：2016-09-01

发表刊物：JOURNAL OF ENERGY CHEMISTRY

收录刊物：SCIE、EI、ISTIC、CSCD、Scopus

卷号：25

期号：5

页面范围：861-867

ISSN号：2095-4956

关键字：Dye-sensitized solar cell; Counter electrode; Density functional theory; Volcanic plot; Amio-functionalized graphene

摘要：For some specific catalytic reaction, how to construct active sites on two dimensional materials is of great scientific significance. Dye-sensitized solar cells (DSCs) can be viewed as one representative photovoltaics because in which liquid electrolyte with triiodide/iodide (I-3(-)/I-) as redox couples are involved. In this study, amino-functionalized graphene (AFG) has been designed according to theoretically analyzing iodine reduction reaction (IRR) processes and rationally screening the volcanic plot. Then, such AFG has been successfully synthesized by a simple hydrothermal method and shows high electrocatalytic activity towards IRR when serving as counter electrode in DSCs. Finally, a high conversion efficiency of 7.39% by AFG-based DSCs was obtained, which is close to that using Pt as counter electrode. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.