Preparation and characterization of TiO2-NTs/SnO2-Sb electrodes by electrodeposition

被引：148

作者：

Chen, Yong ^{[1
]}

Hong, Lei ^{[1
]}

Xue, Hongmin ^{[1
]}

Han, Weiqing ^{[1
]}

Wang, Lianjun ^{[1
]}

Sun, Xiuyun ^{[1
]}

Li, Jiansheng ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu Prov, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2010年 / 648卷 / 02期

关键词：

TiO2-NTs/SnO2-Sb electrode; Electrodeposition; Electrochemical stability; Electrochemical porosity; Stabilization mechanism; WASTE-WATER TREATMENT; ORGANIZED TIO2 NANOTUBES; DOPED SNO2 ELECTRODE; ELECTROCHEMICAL OXIDATION; O-2; EVOLUTION; ANODES; DEGRADATION; POLLUTANTS; ELECTROCATALYSIS; 4-CHLOROPHENOL;

D O I：

10.1016/j.jelechem.2010.08.004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The novel Sb-doped SnO2 electrodes (TiO2-NTs/SnO2-Sb) have been prepared by anodization, electrodeposition and annealing. TiO2 nanotubes (TiO2-NTs) after Sb and Sn electrodeposited were characterized using field-emission scanning electron microscopy (FE-SEM). In contrast with the traditional Sb-doped SnO2 coating prepared by thermal decomposition, the Sb-doped SnO2 coating prepared by electrodeposition processes show more compact. X-ray diffraction (XRD) analysis indicates that the Sb-doped SnO2 coating prepared by electrodeposition processes are firmly combined with the TiO2-NTs formed on the Ti substrate. Accelerated service life tests reveal that the electrodeposition processes enhance the electrochemical stability of the Sb-doped SnO2 electrode. The cyclic voltammetry analysis shows that TiO2-NTs/SnO2-Sb electrodes have higher overpotential for oxygen evolution and higher electrochemical porosity. Besides, the enhanced stabilization mechanism of the TiO2-NTs/SnO2-Sb electrode prepared by electrodeposition processes has been studied. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：119 / 127

页数：9

共 40 条

[1] Composite ternary SnO2-IrO2-Ta2O5 oxide electrocatalysts [J].

Ardizzone, S ;

Bianchi, CL ;

Cappelletti, G ;

Ionita, M ;

Minguzzi, A ;

Rondinini, S ;

Vertova, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2006, 589 (01) :160-166

[2] NOTE ON A METHOD TO INTERRELATE INNER AND OUTER ELECTRODE AREAS - REPLY [J].

BARONETTO, D ;

KRSTAJIC, N ;

TRASATTI, S .

ELECTROCHIMICA ACTA, 1994, 39 (16) :2359-2362

[3] Electrochemical characterization of SnO2 electrodes doped with Ru and Pt [J].

Berenguer, R. ;

Quijada, C. ;

Morallon, E. .

ELECTROCHIMICA ACTA, 2009, 54 (22) :5230-5238

[4] The influence of metal oxide properties on the oxidation of organics [J].

Bock, C ;

MacDougall, B .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 491 (1-2) :48-54

[5] Influence of a nanoscale gold thin layer on Ti/SnO2-Sb2O5 electrodes [J].

Chen, AC ;

Nigro, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (48) :13341-13348

[6] Electrochemical behavior of novel Ti/IrOx-Sb2O5-SnO2 anodes [J].

Chen, GH ;

Chen, XM ;

Yue, PL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (17) :4364-4369

[7] Stable Ti/RuO2-Sb2O5-SnO2 electrodes for O2 evolution [J].

Chen, XM ;

Chen, GH .

ELECTROCHIMICA ACTA, 2005, 50 (20) :4155-4159

[8] Stable Ti/IrOx-Sb2O5-SnO2 anode for O2 evolution with low Ir content [J].

Chen, XM ;

Chen, GH ;

Yue, PL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (20) :4623-4628

[9] CHARACTERIZATION OF DSA-TYPE OXYGEN EVOLVING ELECTRODES - CHOICE OF A COATING [J].

COMNINELLIS, C ;

VERCESI, GP .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1991, 21 (04) :335-345

[10] ELECTROCATALYSIS IN THE ELECTROCHEMICAL CONVERSION/COMBUSTION OF ORGANIC POLLUTANTS FOR WASTE-WATER TREATMENT [J].

COMNINELLIS, C .

ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1857-1862

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