Fabrication of Au nanoparticle-decorated TiO2 nanotube arrays for stable photoelectrochemical water splitting by two-step anodization

Jin Young Choi, Young Hoon Sung, Hak Jong Choi, Yang Doo Kim, Daihong Huh, Heon Lee

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

To improve the photoelectrochemical (PEC) water splitting efficiency for hydrogen production, we report the fabrication of Au NP-decorated TiO2 nanotube (TNT) arrays by a simple and cost-effective method involving two-step anodization and Au thin film agglomeration. TNT arrays prepared by the two-step anodization showed better photocurrent stability and efficiency than those prepared by one-step anodization. In addition, Au decoration on the TNT array induced a remarkable increase of 67.2% in the photocurrent to 1.02 mA/cm2.

Original languageEnglish
Pages (from-to)14063-14067
Number of pages5
JournalCeramics International
Volume43
Issue number16
DOIs
Publication statusPublished - 2017 Nov 1

Keywords

  • Anodization
  • Au nanoparticle
  • Nanotube
  • Photoelectrochemical water-splitting
  • TiO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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