Fabrication of WO3/TiO2 core-shell nanowire arrays: Structure design and high electrochromic performance

被引：59

作者：

Tang, Kai ^{[1
]}

Zhang, Yong ^{[1
,2
]}

Shi, Yingdi ^{[1
]}

Cui, Jiewu ^{[1
,2
]}

Shu, Xia ^{[1
,2
]}

Wang, Yan ^{[1
,2
]}

Qin, Yongqiang ^{[1
,2
]}

Liu, Jiaqin ^{[3
]}

Tan, Hark Hoe ^{[4
]}

Wu, Yucheng ^{[1
,2
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China

[2] Key Lab Adv Funct Mat & Devices Anhui Prov, Hefei 230009, Anhui, Peoples R China

[3] Hefei Univ Technol, Inst Ind & Equipment Technol, 193 Tunxi Rd, Hefei 230009, Anhui, Peoples R China

[4] Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 2601, Australia

来源：

ELECTROCHIMICA ACTA | 2020年 / 330卷

基金：

中国国家自然科学基金;

关键词：

Tungsten oxide; Titanium oxide; Core/shell nanowires; Magnetron sputtering; Electrochromic; AMORPHOUS TIO2; NANOROD ARRAYS; HEXAGONAL WO3; FILMS; DEGRADATION; DEVICES; STATE;

D O I：

10.1016/j.electacta.2019.135189

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Unique WO3/TiO2 core-shell nanowire heterostructures are rationally constructed based on a solvothermal method combining magnetron sputtering. High resolution transmission electron microscopy (HRTEM) analysis evidences the existence of a semi-coherent interface between a hexagonal phase WO3 core and anatase TiO2 shell. X-ray photoelectron spectroscopy and optical absorption spectra suggest an interfacial interaction between the WO3 core and TiO2 shell. The WO3/TiO2 core-shell nanowires exhibit superior electrochromic performance in both visible and near infrared regions with large optical modulation (87.0% at 1500 nm and 85.3% at 633 nm), short bleaching-coloration times (1.1 s and 3.0 s), decent coloring efficiency (102.1 cm(2) C-1) and excellent cycling stability (95.6% after 3000 cycles). The obtained WO3/TiO2 core-shell nanowire heterostructures may find great potential in producing electrochromic nanodevices and other energy-efficient applications. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：10

共 55 条

[1] Improvement of TiO2 photocatalytic properties under visible light by WO3/TiO2 and MoO3/TiO2 composites [J].

Bai, Shouli ;

Liu, Haiyan ;

Sun, Jianhua ;

Tian, Ye ;

Chen, Song ;

Song, Jingli ;

Luo, Ruixian ;

Li, Dianqing ;

Chen, Aifan ;

Liu, Chung-Chiun .

APPLIED SURFACE SCIENCE, 2015, 338 :61-68

[2] Hexagonal Tungsten Oxide Based Electrochromic Devices: Spectroscopic Evidence for the Li Ion Occupancy of Four-Coordinated Square Windows [J].

Balaji, Subramanian ;

Djaoued, Yahia ;

Albert, Andre-Sebastien ;

Ferguson, Richard Z. ;

Bruening, Ralf .

CHEMISTRY OF MATERIALS, 2009, 21 (07) :1381-1389

[3] Nanoscaled Amorphous TiO2 Hollow Spheres: TiCI4 Liquid Droplet Based Hydrolysis Fabrication and Strong Hollow Structure-Enhanced Surface-Enhanced Raman Scattering Effects [J].

Bao, Haoming ;

Zhang, Hongwen ;

Liu, Guangqiang ;

Li, Yue ;

Cai, Weiping .

LANGMUIR, 2017, 33 (22) :5430-5438

[4] Bi-functional flexible electrodes based on tungsten trioxide/zinc oxide nanocomposites for electrochromic and energy storage applications [J].

Bi, Zhijie ;

Li, Xiaomin ;

Chen, Yongbo ;

Xu, Xiaoke ;

Zhang, Shude ;

Zhu, Qiuxiang .

ELECTROCHIMICA ACTA, 2017, 227 :61-68

[5] Analysis of the kinetics of ion intercalation - Ion trapping approach to solid-state relaxation processes [J].

Bisquert, J .

ELECTROCHIMICA ACTA, 2002, 47 (15) :2435-2449

[6] Analysis of the kinetics of ion intercalation. Two state model describing the coupling of solid state ion diffusion and ion binding processes [J].

Bisquert, J ;

Vikhrenko, VS .

ELECTROCHIMICA ACTA, 2002, 47 (24) :3977-3988

[7] THE STATE OF TI IN TITANOALUMINOSILICATES ISOMORPHOUS WITH ZEOLITE-BETA [J].

BLASCO, T ;

CAMBLOR, MA ;

CORMA, A ;

PEREZPARIENTE, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (25) :11806-11813

[8] Coloring ionic trapping states in WO3 and Nb2O5 electrochromic materials [J].

Bueno, Paulo R. ;

Gabrielli, Claude ;

Perrot, Hubert .

ELECTROCHIMICA ACTA, 2008, 53 (17) :5533-5539

[9] Efficient electrochromic materials based on TiO2@WO3 core/shell nanorod arrays [J].

Cai, G. F. ;

Zhou, D. ;

Xiong, Q. Q. ;

Zhang, J. H. ;

Wang, X. L. ;

Gu, C. D. ;

Tu, J. P. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2013, 117 :231-238

[10] Hierarchical structure Ti-doped WO3 film with improved electrochromism in visible-infrared region [J].

Cai, Guo-fa ;

Wang, Xiu-li ;

Zhou, Ding ;

Zhang, Jia-heng ;

Xiong, Qin-qin ;

Gu, Chang-dong ;

Tu, Jiang-ping .

RSC ADVANCES, 2013, 3 (19) :6896-6905

← 1 2 3 4 5 6 →