Real-time detection of photocatalytic hydrogen production for platinized titanium dioxide thin films in high vacuum

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

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume46
Issue number29-32
DOIs
Publication statusPublished - 2007 Aug 10
Externally publishedYes

Fingerprint

hydrogen production
Hydrogen production
high vacuum
titanium oxides
Titanium dioxide
Methanol
methyl alcohol
Vacuum
Thin films
Photolysis
Mass spectrometers
thin films
formaldehyde
Formaldehyde
anatase
Partial pressure
mass spectrometers
partial pressure
photolysis
Platinum

Keywords

  • Gaseous methanol and water
  • High vacuum
  • Photocatalyst
  • Real-time detection
  • Solar hydrogen production
  • Titanium dioxide

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Real-time detection of photocatalytic hydrogen production for platinized titanium dioxide thin films in high vacuum. / Noda, Kei; Hattori, Masashi; Amari, Kouichi; Kobayashi, Kei; Horiuchi, Toshihisa; Matsushige, Kazumi.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 46, No. 29-32, 10.08.2007.

Research output: Contribution to journalArticle

Noda, Kei ; Hattori, Masashi ; Amari, Kouichi ; Kobayashi, Kei ; Horiuchi, Toshihisa ; Matsushige, Kazumi. / Real-time detection of photocatalytic hydrogen production for platinized titanium dioxide thin films in high vacuum. In: Japanese Journal of Applied Physics, Part 2: Letters. 2007 ; Vol. 46, No. 29-32.
@article{a12f2506b1d14fa68d01572b064e86b7,
title = "Real-time detection of photocatalytic hydrogen production for platinized titanium dioxide thin films in high vacuum",
abstract = "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.",
keywords = "Gaseous methanol and water, High vacuum, Photocatalyst, Real-time detection, Solar hydrogen production, Titanium dioxide",
author = "Kei Noda and Masashi Hattori and Kouichi Amari and Kei Kobayashi and Toshihisa Horiuchi and Kazumi Matsushige",
year = "2007",
month = "8",
day = "10",
doi = "10.1143/JJAP.46.L749",
language = "English",
volume = "46",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "29-32",

}

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

UR - http://www.scopus.com/inward/record.url?scp=34548393217&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548393217&partnerID=8YFLogxK

U2 - 10.1143/JJAP.46.L749

DO - 10.1143/JJAP.46.L749

M3 - Article

AN - SCOPUS:34548393217

VL - 46

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 29-32

ER -