title: Intrinsic Au decoration of growing TiO2 nanotubes and formation of a high-efficiency photocatalyst for H2 production.
abstract: 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.
authors: Department of Materials Science and Engineering WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, D-91058, Erlangen, Germany.
authors: Kiyoung
authors: K
authors: Lee
authors: Robert
authors: R
authors: Hahn
authors: Marco
authors: M
authors: Altomare
authors: Elena
authors: E
authors: Selli
authors: Patrik
authors: P
authors: Schmuki
mesh_terms: D000497:Alloys / Q000737:chemistry; D002384:Catalysis; D000431:Ethanol / Q000737:chemistry; D005459:Fluorides / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D043942:Nanotubes / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D000497:Alloys; C009495:titanium dioxide; D000431:Ethanol; D006046:Gold; D006859:Hydrogen; D014025:Titanium; D005459:Fluorides
keywords: Au nanoparticle; H2 production; nanostructures; self-decoration; titanium dioxide