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 journalArticle

5 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

Fingerprint

Nanotubes
Nanoparticles
Photocurrents
Fabrication
Water
Hydrogen production
Agglomeration
Thin films
Costs

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

Cite this

Fabrication of Au nanoparticle-decorated TiO2 nanotube arrays for stable photoelectrochemical water splitting by two-step anodization. / Choi, Jin Young; Hoon Sung, Young; Choi, Hak Jong; Doo Kim, Yang; Huh, Daihong; Lee, Heon.

In: Ceramics International, Vol. 43, No. 16, 01.11.2017, p. 14063-14067.

Research output: Contribution to journalArticle

Choi, Jin Young ; Hoon Sung, Young ; Choi, Hak Jong ; Doo Kim, Yang ; Huh, Daihong ; Lee, Heon. / Fabrication of Au nanoparticle-decorated TiO2 nanotube arrays for stable photoelectrochemical water splitting by two-step anodization. In: Ceramics International. 2017 ; Vol. 43, No. 16. pp. 14063-14067.
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