Low-cost Cr doped Pt3Ni alloy supported on carbon nanofibers composites counter electrode for efficient dye-sensitized solar cells

被引：18
作者：
Xiao, Junying [1 ]
Cui, Midou [1 ]
Wang, Mingkun [1 ]
Sui, Huidong [1 ]
Yang, Kun [1 ]
Li, Ling [1 ]
Zhang, Wenming [1 ]
Li, Xiaowei [1 ]
Fu, Guangsheng [1 ]
Hagfeldt, Anders [2 ]
Zhang, Yucang [3 ]
机构：
[1] Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China
[2] Swiss Fed Inst Technol Lausanne EPFL, Lab Photomol Sci LSPM, CH-1015 Lausanne, Switzerland
[3] Hainan Univ, Coll Mat & Chem Engn, Haikou 570228, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2016年 / 328卷
基金：
中国国家自然科学基金;
关键词：
Pt3Ni alloy; Carbon nanofibers; Doping; Counter electrode; Dye-sensitized solar cells; CATALYTIC-ACTIVITY; TUNGSTEN CARBIDE; PERFORMANCE; NICKEL; NANOPARTICLES; SULFIDE; FILMS; FABRICATION; MOLYBDENUM; NANOFRAMES;
D O I：
10.1016/j.jpowsour.2016.08.062
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Pt3Ni alloy supported by carbon nanofibers (CNs) composites (Pt3Ni/CNs) synthesized by a simple solvothermal process was introduced into dye-sensitized solar cells (DSCs) as counter electrode (CE) for the first time, and the DSCs based on Pt3Ni/CNs CE obtained a power conversion efficiency (PCE) of 8.34%. To enhance the catalytic activity of Pt3Ni/CNs composites, transition metal chrome (Cr) was doped in Pt3Ni/CNs to synthesize the composites of Cr-Pt3Ni/CNs using the same method. Due to the high electro-catalytic activity and rapid charge transfer ability, the PCE of the DSCs employing Cr-Pt3Ni/CNs as CE increased to 8.76%, which was much higher than that of Pt CE (7.04%) measured in the same condition. The impressive results along with low cost and simple synthesis process demonstrated transition metal doping was a promising method to produce substitutes for Pt to reduce the cost and increase the PCE of DSCs. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码：543 / 550
页数：8
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