Photocatalytic hydrogen production from gas-phase methanol and water with nanocrystalline TiO2 thin films in high vacuum

Kei Noda, Masashi Hattori, Kouichi Amari, Kei Kobayashi, Toshihisa Horiuchi, Kazumi Matsushige

研究成果: Conference article査読

2 被引用数 (Scopus)


Photocatalytic hydrogen production with gas-phase reactions in high vacuum was examined for nanocrystalline anatase-type titanium dioxide (TiO2) thin films. The hydrogen generation process on platinized TiC2 specimens was investigated using a quadrupole mass spectrometer at a real-time scale under various partial pressures of gaseous methanol and water. As a result, hydrogen generation was successfully detected under ultraviolet (UV) ray illumination even in high vacuum (-10-7 Torr). And the amount of produced H2 largely depends on the temperature of TiO2 samples, probably due to different surface states of TiO2. This study suggests the possibility of new high-speed H2 production system with gas-phase photocatalytic reactions.

ジャーナルMaterials Research Society Symposium Proceedings
出版ステータスPublished - 2008 12 1
イベントNanophase and Nanocomposite Materials V - Boston, MA, United States
継続期間: 2007 11 262007 11 30

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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