Intrinsic Au Decoration of Growing TiO2 Nanotubes and Formation of a High-Efficiency Photocatalyst for H2 Production

被引：106

作者：

Lee, Kiyoung ^{[1
]}

Hahn, Robert ^{[1
]}

Altomare, Marco ^{[1
,2
]}

Selli, Elena ^{[2
]}

Schmuki, Patrik ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, LKO WW4, D-91058 Erlangen, Germany

[2] Univ Milan, Dept Chem, I-20133 Milan, Italy

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 42期

关键词：

titanium dioxide; nanostructures; Au nanoparticle; self-decoration; H-2; production; HIGH-ASPECT-RATIO; HYDROGEN-PRODUCTION; ANODIC FORMATION; DOPED TIO2; OXIDE; WATER; ARRAYS; TA; RECOMBINATION; NANOMATERIALS;

D O I：

10.1002/adma.201302581

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrochemical anodization of low-concentration (0.02-0.2 at% Au) TiAu alloys in a fluoride electrolyte leads to self-organized TiO2 nanotubes that show a controllable, regular in situ decoration with elemental Au nanoclusters of ≈5 nm in diameter. The degree of self-decoration can be adjusted by the Au concentration in the alloy and the anodization time. Such Au particle decorated tubes show a high activity for photocatalytic H2 production from ethanol solutions. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：6133 / 6137

页数：5

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