Metal Oxide/Carbide/Carbon Nanocomposites: In Situ Synthesis, Characterization, Calculation, and their Application as an Efficient Counter Electrode Catalyst for Dye-Sensitized Solar Cells

被引:158
|
作者
Yun, Sining [1 ]
Zhang, Hong [2 ]
Pu, Huihai [3 ]
Chen, Junhong [3 ]
Hagfeldt, Anders [4 ]
Ma, Tingli [2 ]
机构
[1] Xian Univ Architecture & Technol, Sch Mat & Mineral Resources, Xian 710055, Shaanxi, Peoples R China
[2] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[3] Univ Wisconsin, Dept Mech Engn, Milwaukee, WI 53211 USA
[4] Uppsala Univ, Dept Phys & Analyt Chem, SE-75105 Uppsala, Sweden
关键词
HIGH-PERFORMANCE; MESOPOROUS CARBON; TITANIUM NITRIDE; PLATINUM; GRAPHENE; TIO2; NANOTUBES; CARBIDES; CATHODE; DIOXIDE;
D O I
10.1002/aenm.201300242
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
TaO- and TaC-based nanocomposites as novel and low-cost counter electrodes (CEs) in dye-sensitized solar cells (DSCs) show outstanding electrocatalytic activity and photovoltaic performance, superior to the Pt electrode. Based on the first-principles density functional theory (DFT) calculations, I3 is chemisorbed onto the TaO surface as opposed to physical adsorption on the TaC surface. The TaO-based composite is more efficient than the TaC-based composite as a CE in DSCs. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:1407 / 1412
页数:6
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