TY - JOUR
T1 - Real-time detection of photocatalytic hydrogen production for platinized titanium dioxide thin films in high vacuum
AU - Noda, Kei
AU - Hattori, Masashi
AU - Amari, Kouichi
AU - Kobayashi, Kei
AU - Horiuchi, Toshihisa
AU - Matsushige, Kazumi
PY - 2007/8/10
Y1 - 2007/8/10
N2 - Photocatalytic hydrogen production was first detected in a high vacuum condition for platinum-loaded nanocrystalline anatase-titanium dioxide (TiO 2) thin films, using a newly developed monitoring system with a quadrupole mass spectrometer. In the presence of methanol of 10-6 Torr, partial pressures of hydrogen (H2) and formaldehyde (HCHO), generated due to the decomposition of methanol, were observed clearly to change simultaneously with the UV irradiation onto the TiO2 films. Photolysis of gas-phase water was also detected, thus revealing that this new method is capable to evaluate sensitively such the photocatalytic activities in high vacuum at a real-time scale.
AB - Photocatalytic hydrogen production was first detected in a high vacuum condition for platinum-loaded nanocrystalline anatase-titanium dioxide (TiO 2) thin films, using a newly developed monitoring system with a quadrupole mass spectrometer. In the presence of methanol of 10-6 Torr, partial pressures of hydrogen (H2) and formaldehyde (HCHO), generated due to the decomposition of methanol, were observed clearly to change simultaneously with the UV irradiation onto the TiO2 films. Photolysis of gas-phase water was also detected, thus revealing that this new method is capable to evaluate sensitively such the photocatalytic activities in high vacuum at a real-time scale.
KW - Gaseous methanol and water
KW - High vacuum
KW - Photocatalyst
KW - Real-time detection
KW - Solar hydrogen production
KW - Titanium dioxide
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U2 - 10.1143/JJAP.46.L749
DO - 10.1143/JJAP.46.L749
M3 - Article
AN - SCOPUS:34548393217
SN - 0021-4922
VL - 46
SP - L749-L751
JO - Japanese Journal of Applied Physics, Part 2: Letters
JF - Japanese Journal of Applied Physics, Part 2: Letters
IS - 29-32
ER -
