Microstructure and electrocatalytic performance of nanoporous gold foils decorated by TiO2coatings

A. Y. Chen; S. S. Shi; J. W. Wang; F. Liu; F. Wang; Y. Wang; Haihui Ruan; X. F. Xie

doi:10.1016/j.surfcoat.2015.10.014

Microstructure and electrocatalytic performance of nanoporous gold foils decorated by TiO₂coatings

A. Y. Chen, S. S. Shi, J. W. Wang, F. Liu, F. Wang, Y. Wang, Haihui Ruan, X. F. Xie

Research output: Journal article publication › Journal article › Academic research › peer-review

10 Citations (Scopus)

Abstract

An ultra-thin TiO2coating was sputtered onto the surface of nanoporous gold (NPG) foil by magnetron sputtering. The microstructure of the TiO2@NPG was studied by scanning electron microscopy, transmission electron microscopy, atomic force microscopy and X-ray photoelectric spectroscopy. The TiO2coating, characterized by an amorphous structure, covers the Au ligaments, increases the ligament size and decreases the surface roughness. The electrocatalytic activities of TiO2@NPG toward the glucose oxidation in alkaline media were measured by cyclic voltammetry method. The experimental results exhibit that the TiO2@NPG composites present an obvious improvement of electrocatalytic performance compared with the bare NPG. The effect of TiO2content on the electrocatalytic performance is investigated, and a synergistic effect between TiO2and NPG is discussed.

Original language	English
Pages (from-to)	113-118
Number of pages	6
Journal	Surface and Coatings Technology
Volume	286
DOIs	https://doi.org/10.1016/j.surfcoat.2015.10.014
Publication status	Published - 1 Jan 2016

Keywords

Electrocatalytic performance
Microstructure
Nanoporous gold
Sputtering
TiO coating 2

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

More information

10.1016/j.surfcoat.2015.10.014

Cite this

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title = "Microstructure and electrocatalytic performance of nanoporous gold foils decorated by TiO2coatings",

abstract = "An ultra-thin TiO2coating was sputtered onto the surface of nanoporous gold (NPG) foil by magnetron sputtering. The microstructure of the TiO2@NPG was studied by scanning electron microscopy, transmission electron microscopy, atomic force microscopy and X-ray photoelectric spectroscopy. The TiO2coating, characterized by an amorphous structure, covers the Au ligaments, increases the ligament size and decreases the surface roughness. The electrocatalytic activities of TiO2@NPG toward the glucose oxidation in alkaline media were measured by cyclic voltammetry method. The experimental results exhibit that the TiO2@NPG composites present an obvious improvement of electrocatalytic performance compared with the bare NPG. The effect of TiO2content on the electrocatalytic performance is investigated, and a synergistic effect between TiO2and NPG is discussed.",

keywords = "Electrocatalytic performance, Microstructure, Nanoporous gold, Sputtering, TiO coating 2",

author = "Chen, {A. Y.} and Shi, {S. S.} and Wang, {J. W.} and F. Liu and F. Wang and Y. Wang and Haihui Ruan and Xie, {X. F.}",

year = "2016",

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AU - Chen, A. Y.

AU - Shi, S. S.

AU - Wang, J. W.

AU - Liu, F.

AU - Wang, F.

AU - Wang, Y.

AU - Ruan, Haihui

AU - Xie, X. F.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - An ultra-thin TiO2coating was sputtered onto the surface of nanoporous gold (NPG) foil by magnetron sputtering. The microstructure of the TiO2@NPG was studied by scanning electron microscopy, transmission electron microscopy, atomic force microscopy and X-ray photoelectric spectroscopy. The TiO2coating, characterized by an amorphous structure, covers the Au ligaments, increases the ligament size and decreases the surface roughness. The electrocatalytic activities of TiO2@NPG toward the glucose oxidation in alkaline media were measured by cyclic voltammetry method. The experimental results exhibit that the TiO2@NPG composites present an obvious improvement of electrocatalytic performance compared with the bare NPG. The effect of TiO2content on the electrocatalytic performance is investigated, and a synergistic effect between TiO2and NPG is discussed.

AB - An ultra-thin TiO2coating was sputtered onto the surface of nanoporous gold (NPG) foil by magnetron sputtering. The microstructure of the TiO2@NPG was studied by scanning electron microscopy, transmission electron microscopy, atomic force microscopy and X-ray photoelectric spectroscopy. The TiO2coating, characterized by an amorphous structure, covers the Au ligaments, increases the ligament size and decreases the surface roughness. The electrocatalytic activities of TiO2@NPG toward the glucose oxidation in alkaline media were measured by cyclic voltammetry method. The experimental results exhibit that the TiO2@NPG composites present an obvious improvement of electrocatalytic performance compared with the bare NPG. The effect of TiO2content on the electrocatalytic performance is investigated, and a synergistic effect between TiO2and NPG is discussed.

KW - Electrocatalytic performance

KW - Microstructure

KW - Nanoporous gold

KW - Sputtering

KW - TiO coating 2

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DO - 10.1016/j.surfcoat.2015.10.014

M3 - Journal article

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VL - 286

SP - 113

EP - 118

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

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