Immobilization of a Molecular Ruthenium Catalyst on Hematite Nanorod Arrays for Water Oxidation with Stable Photocurrent

被引：57

作者：

Fan, Ke ^{[1
]}

Li, Fusheng ^{[1
]}

Wang, Lei ^{[1
]}

Daniel, Quentin ^{[1
]}

Chen, Hong ^{[2
,3
]}

Gabrielsson, Erik ^{[1
]}

Sun, Junliang ^{[2
,3
]}

Sun, Licheng ^{[1
,4
]}

机构：

[1] KTH Royal Inst Technol, Dept Chem, S-10044 Stockholm, Sweden

[2] Stockholm Univ, Berzelii Ctr EXAELENT Porous Mat, S-10691 Stockholm, Sweden

[3] Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden

[4] Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

CHEMSUSCHEM | 2015年 / 8卷 / 19期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

hematite; heterogeneous catalysis; nanorods; ruthenium; water oxidation; VISIBLE-LIGHT; PHOTOELECTROCHEMICAL CELLS; ARTIFICIAL PHOTOSYNTHESIS; HYDROGEN-PRODUCTION; DRIVEN; PHOTOANODES; SEMICONDUCTOR;

D O I：

10.1002/cssc.201500730

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoelectrochemical (PEC) cells for light-driven water splitting are prepared using hematite nanorod arrays on conductive glass as the photoanode. These devices improve the photocurrent of the hematite-based photoanode for water splitting, owing to fewer surface traps and decreased electron recombination resulting from the one-dimensional structure. By employing a molecular ruthenium co-catalyst, which contains a strong 2,6-pyridine-dicarboxylic acid anchoring group at the hematite photoanode, the photocurrent of the PEC cell is enhanced with high stability for over 10000s in a 1m KOH solution. This approach can pave a route for combining one-dimensional nanomaterials and molecular catalysts to split water with high efficiency and stability.

引用

页码：3242 / 3247

页数：6

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