All electrochemical fabrication of a bilayer membrane composed of nanotubular photocatalyst and palladium toward high-purity hydrogen production

Masashi Hattori, Kei Noda

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We developed an all-electrochemical technique for fabricating a bilayer structure of a titanium dioxide (TiO 2 ) nanotube array (TNA) and a palladium film (TNA/Pd membrane), which works for photocatalytic high-purity hydrogen production. Electroless plating was used for depositing the Pd film on the TNA surface prepared by anodizing a titanium foil. A 3-μm-thick TNA/Pd membrane without any pinholes in a 1.5-cm-diameter area was fabricated by transferring a 1-μm-thick TNA onto an electroless-plated 2-μm-thick Pd film with a mechanical peel-off process. This ultrathin membrane with sufficient mechanical robustness showed photocatalytic H 2 production via methanol reforming under ultraviolet illumination on the TNA side, immediately followed by the purification of the generated H 2 gas through the Pd layer. The hydrogen production rate and the apparent quantum yield for high-purity H 2 production from methanol/water mixture with the TNA/Pd membrane were also examined. This work suggests that palladium electroless plating is more suitable and practical for preparing a well-organized TNA/Pd heterointerface than palladium sputter deposition.

本文言語English
ページ(範囲)214-220
ページ数7
ジャーナルApplied Surface Science
357
DOI
出版ステータスPublished - 2015 12 1

ASJC Scopus subject areas

  • 化学 (全般)
  • 凝縮系物理学
  • 物理学および天文学(全般)
  • 表面および界面
  • 表面、皮膜および薄膜

フィンガープリント

「All electrochemical fabrication of a bilayer membrane composed of nanotubular photocatalyst and palladium toward high-purity hydrogen production」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル