Synthesis of NiSe2/reduced graphene oxide crystalline materials and their efficient electrocatalytic activity in dye-sensitized solar cells

被引：27

作者：

Zhang, Xiao ^{[1
]}

Jing, Tian-zeng ^{[1
]}

Guo, Sheng-qi ^{[1
]}

Gao, Guan-dao ^{[1
]}

Liu, Lu ^{[1
]}

机构：

[1] Nankai Univ, Tianjin Key Lab Environm Remediat & Pollut Contro, Tianjin 300071, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 92期

基金：

美国国家科学基金会;

关键词：

PT-FREE CATALYSTS; COUNTER-ELECTRODE; LOW-COST; NANOPARTICLES; SHEETS; REDUCTION; SURFACE; GROWTH; NISE2; AREA;

D O I：

10.1039/c4ra09656h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We synthesized two kinds of NiSe2 crystalline material grown on graphene (microsphere NiSe2/RGO and octahedron NiSe2/RGO) through a facile hydrothermal route. Their catalytic activities as the counter electrodes (CEs) in dye-sensitized solar cells (DSSCs) were investigated through I-V curves and conversion efficiency tests. Attributed to the outstanding carrier transfer properties of graphene nanosheets, the NiSe2/graphene materials exhibited an excellent electrochemical performance, and microsphere NiSe2/RGO showed a better electrocatalytic performance as the CE for the reduction of triiodide than that of Pt. Furthermore, Tafel polarization and electrical impedance spectroscopy (EIS) were performed to evaluate the electrocatalytic activity of the as-prepared CEs.

引用

页码：50312 / 50317

页数：6

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