Redox properties of nanoporous TiO2 (anatase) surface modified with phosphotungstic acid

被引：15

作者：

Lindstrom, H

Rensmo, H

Lindquist, SE

Hagfeldt, A

Henningsson, A

Sodergren, S

Siegbahn, H

机构：

[1] Univ Uppsala, Dept Chem Phys, S-75121 Uppsala, Sweden

[2] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden

来源：

THIN SOLID FILMS | 1998年 / 323卷 / 1-2期

关键词：

XPS; anatase; phosphotungstic acid; lithium intercalation; nanoporous; polyoxometalates;

D O I：

10.1016/S0040-6090(98)00353-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured anatase TiO2 electrodes surface modified with inorganic metal oxide clusters, i.e., phosphotungstic acid (PWA), was studied by XPS and spectroelectrochemistry. The surface modifiers were electroactive and could be addressed reversibly by changing the applied bias. The formation of new states in the electronic structure of TiO2 and the PWA was monitored by XPS using a novel preparation technique. The coloration efficiency of the deposit was about 20 cm(2)/C. Prolonged electrochemical cycling degraded the electrical contact between the PWA and the TiO2 surface. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：141 / 145

页数：5

共 20 条

[1] DIFFERENTIAL-PULSE ANODIC VOLTAMMETRIC DETERMINATION OF PHOSPHATE, SILICATE, ARSENATE AND GERMANATE AS BETA-HETEROPOLYMOLYBDATES AT A STATIONARY GLASSY-CARBON ELECTRODE [J].