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

Research output: Contribution to journalConference articlepeer-review

2 Citations (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.

Original languageEnglish
Pages (from-to)7-12
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Publication statusPublished - 2008
Externally publishedYes
EventNanophase and Nanocomposite Materials V - Boston, MA, United States
Duration: 2007 Nov 262007 Nov 30

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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