Coaxial titanium vanadium nitride core-sheath nanofiberswith enhanced electrocatalytic activity for triiodide reduction in dye-sensitized solar cells

doi:10.1016/j.electacta.2018.03.159

	Coaxial titanium vanadium nitride core-sheath nanofiberswith enhanced electrocatalytic activity for triiodide reduction in dye-sensitized solar cells
	Zhang, Xiaoying 1; Hao, Yilei 2; Shang, Chaoqun 3; Chen, Xiao 4; Li, Weihua 1; Hu, Songqing 2; Cui, Guanglei 4
	2018-05-01
Source Publication	ELECTROCHIMICA ACTA
ISSN	0013-4686
Volume	271 Pages:388-396
Corresponding Author	Zhang, Xiaoying(zhangxy@qibebt.ac.cn) ; Li, Weihua() ; Hu, Songqing() ; Cui, Guanglei()
Abstract	Coaxial titanium vanadium nitride core-sheath nanofibers (VN@TiN) with mesoporous structure are fabricated and explored as efficient Pt-free counter electrodes (CEs) for Dye-sensitized Solar Cells (DSCs). For these nanofibers, the TiN core is covered with a sheath of VN, and their boundary is a continuous series of TiVN solid solutions. Both electrochemical tests and density functional theory computations indicate that the combination of core-sheath nanofibers structure design and the formation of TiVN solid solutions significantly enhance the triiodide reduction activity of parental TiN and VN. Impressively, the devices employing VN@TiN core-sheath nanofibers CEs yield 8.98%, which is 17% higher than that device with Pt CE (7.64%). The design strategy developed in this study may promote a boom in a promising alternative CE for future large-scale application of DSCs. (C) 2018 Elsevier Ltd. All rights reserved.
Keyword	Core-sheath Titanium vanadium nitride Nanofibers Counter electrode Dye-sensitized solar cells
DOI	10.1016/j.electacta.2018.03.159
Indexed By	SCI
Language	英语
Funding Project	National Natural Science Foundation of China[51609233] ; National Science Fund for Distinguished Young Scholars[51525903] ; Shandong Provincial Natural Science Foundation[ZR2016EEQ16] ; Shandong Provincial Key Research and Development Plan[2017GHY15118] ; Nantong science and technology plan[GY12016046]
WOS Research Area	Electrochemistry
WOS Subject	Electrochemistry
WOS ID	WOS:000430369800044
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics	Cited Times:3[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.qdio.ac.cn/handle/337002/158675
Collection	海洋环境腐蚀与与生物污损重点实验室
Corresponding Author	Zhang, Xiaoying; Li, Weihua; Hu, Songqing; Cui, Guanglei
Affiliation	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.China Univ Petr East China, Dept Mat Phys & Chem, Coll Sci, Qingdao 266580, Peoples R China 3.South China Normal Univ, South China Acad Adv Optoelect, Guangzhou, Guangdong, Peoples R China 4.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
First Author Affilication	Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author Affilication	Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation GB/T 7714	Zhang, Xiaoying,Hao, Yilei,Shang, Chaoqun,et al. Coaxial titanium vanadium nitride core-sheath nanofiberswith enhanced electrocatalytic activity for triiodide reduction in dye-sensitized solar cells[J]. ELECTROCHIMICA ACTA,2018,271:388-396.
APA	Zhang, Xiaoying.,Hao, Yilei.,Shang, Chaoqun.,Chen, Xiao.,Li, Weihua.,...&Cui, Guanglei.(2018).Coaxial titanium vanadium nitride core-sheath nanofiberswith enhanced electrocatalytic activity for triiodide reduction in dye-sensitized solar cells.ELECTROCHIMICA ACTA,271,388-396.
MLA	Zhang, Xiaoying,et al."Coaxial titanium vanadium nitride core-sheath nanofiberswith enhanced electrocatalytic activity for triiodide reduction in dye-sensitized solar cells".ELECTROCHIMICA ACTA 271(2018):388-396.

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