Electrospinning synthesis and electrocatalytic performance of iron oxide/carbon nanofibers composites as a low-cost efficient Pt-free counter electrode for dye-sensitized solar cells
The exploration of low-cost and efficient counter electrodes (CEs) in dye-sensitized solar cells (DSSCs) is of great significance in view of potential application of DSSCs. Herein, the Fe2O3/CNFs composites are synthesized by electrospin method and a facile hydrothermal method, and the composites of Fe2O3/CNFs is used as a low-cost counter electrode for DSSCs. Scanning electron microscopy measurement shows that Fe2O3 nanoparticles have been evenly located on the exterior of CNFs, providing abundant catalytic active sites for triiodide reduction. The one dimensional CNFs has a high conductivity, which could effectively reduce the agglomeration of Fe2O3 nanoparticles, thus increasing the specific surface area of the material and facilitating the rapid transmission of ions and electrons in the electrolyte. The synergistic effect of Fe2O3/CNFs composite leads to high electrocatalytic activity. Consequently, DSSCs devices constructed with an Fe2O3/CNFs composite based on CE afford a decent power conversion efficiency of 7.48%, higher than the expensive Pt CE based DSSCs (6.97%).
基金：
National Natural Science Foundation of China (NSFC) [51772073, 51607054, 21672051, 51762013]; Hebei province Outstanding Youth Fund [A2017201082, A2018201019]; Outstanding Youth Fund of Hebei University [2015JQ02]; Second Batch of Young Talent of Hebei Province [70280016160250, 70280011808]; Major Fund Projects of Hebei Province [E2017201142]; Open Foundation of Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University), Ministry of Education China [AM2017-29]; State Key Laboratory of Fine Chemicals [KF1703]; Post-graduate's Innovation Found Project of Hebei University [hbu2018ss63]
第一作者机构：[1]Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China[2]Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
通讯作者：
推荐引用方式(GB/T 7714)：
Li Ling,Wang Xiaohui,Ma Zeyuan,et al.Electrospinning synthesis and electrocatalytic performance of iron oxide/carbon nanofibers composites as a low-cost efficient Pt-free counter electrode for dye-sensitized solar cells[J].APPLIED SURFACE SCIENCE.2019,475:109-116.doi:10.1016/j.apsusc.2018.12.150.
APA：
Li, Ling,Wang, Xiaohui,Ma, Zeyuan,Liu, Lu,Wang, Hongjie...&Li, Xiaowei.(2019).Electrospinning synthesis and electrocatalytic performance of iron oxide/carbon nanofibers composites as a low-cost efficient Pt-free counter electrode for dye-sensitized solar cells.APPLIED SURFACE SCIENCE,475,
MLA：
Li, Ling,et al."Electrospinning synthesis and electrocatalytic performance of iron oxide/carbon nanofibers composites as a low-cost efficient Pt-free counter electrode for dye-sensitized solar cells".APPLIED SURFACE SCIENCE 475.(2019):109-116
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