Fabrication of Au nanoparticle-decorated TiO2 nanotube arrays for stable photoelectrochemical water splitting by two-step anodization. Issue 16 (November 2017)

• Record Type: Journal Article
• Authors: Choi, Jin-Young; Hoon Sung, Young; Choi, Hak-Jong; Doo Kim, Yang; Huh, Daihong; Lee, Heon
• Is Part Of: Ceramics international. Volume 43:Issue 16(2017)
• Page Start: 14063
• Page End: 14067
• Publication Date: 2017-11
• Subjects: TiO2 -- Nanotube -- Anodization -- Au nanoparticle -- Photoelectrochemical water-splitting; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2017.07.141
• Languages: English
• ISSNs: 0272-8842

Abstract

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/cm 2 .