A nano-modified Si/TiO2 composite electrode for efficient solar water splitting

被引：87

作者：

Takabayashi, S

Nakamura, R

Nakato, Y ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Div Chem, Toyonaka, Osaka 5608531, Japan

[2] Japan Sci & Technol Agcy, JST, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 166卷 / 1-3期

关键词：

hydrogen; photoelectrochemistry; photocatalysis; thin film; nano-particles; surface modification;

D O I：

10.1016/j.jphotochem.2004.04.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solar water splitting with a composite polycrystalline-Si/doped TiO2 thin-film electrode is proposed as a promising new approach to high-efficiency and low-cost solar-to-chemical conversion. The advantage, efficiency, stability, and some problems to be solved are reviewed mainly on the basis of reported results. It is shown that (1) an n-Si electrode with surface alkylation and metal nano-dot coating gives an efficient and stable photovoltaic characteristic, (2) TiO2 (and similar metal oxides) doped with other elements, such as nitrogen and sulfur, can cause water photooxidation (oxygen photoevolution) by visible-light illumination, and thus (3) a coupling of these two electrodes is effective for efficient water splitting under solar illumination. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：107 / 113

页数：7

共 37 条

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