Synthesis, characterization and photocatalytic reactivities of Mo-MCM-41 mesoporous molecular sieves: Effect of the Mo content on the local structures of Mo-oxides

Shinya Higashimoto, Yun Hu, Rie Tsumura, Kiyoshi Iino, Masaya Matsuoka, Hiromi Yamashita, Yong Gun Shul, Michel Che, Masakazu Anpo

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

A series of Mo-MCM-41 mesoporous molecular sieves of varying Mo content were synthesized and the local structures of their active sites characterized by means of XRD, UV-vis, photoluminescence, and XAFS measurements. Mo-MCM-41 was found to possess three different types of Mo-oxide species, the concentrations of which were dependent on the Mo content: a highly dispersed tetra-coordinated monomeric molybdate, a tetra-coordinated dimeric and/or oligomeric molybdate, and a hexa-coordinated polymeric molybdate. Moreover, the tetra-coordinated molybdate species was observed to play a major role in the photocatalytic reduction of NO in the presence of CO to form N2 and CO2.

Original languageEnglish
Pages (from-to)272-278
Number of pages7
JournalJournal of Catalysis
Volume235
Issue number2
DOIs
Publication statusPublished - 2005 Oct 25

Fingerprint

molybdates
Molecular sieves
Multicarrier modulation
absorbents
Oxides
reactivity
oxides
synthesis
Photoluminescence
Carbon Monoxide
photoluminescence
MCM-41
molybdate

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Higashimoto, Shinya ; Hu, Yun ; Tsumura, Rie ; Iino, Kiyoshi ; Matsuoka, Masaya ; Yamashita, Hiromi ; Shul, Yong Gun ; Che, Michel ; Anpo, Masakazu. / Synthesis, characterization and photocatalytic reactivities of Mo-MCM-41 mesoporous molecular sieves : Effect of the Mo content on the local structures of Mo-oxides. In: Journal of Catalysis. 2005 ; Vol. 235, No. 2. pp. 272-278.
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abstract = "A series of Mo-MCM-41 mesoporous molecular sieves of varying Mo content were synthesized and the local structures of their active sites characterized by means of XRD, UV-vis, photoluminescence, and XAFS measurements. Mo-MCM-41 was found to possess three different types of Mo-oxide species, the concentrations of which were dependent on the Mo content: a highly dispersed tetra-coordinated monomeric molybdate, a tetra-coordinated dimeric and/or oligomeric molybdate, and a hexa-coordinated polymeric molybdate. Moreover, the tetra-coordinated molybdate species was observed to play a major role in the photocatalytic reduction of NO in the presence of CO to form N2 and CO2.",
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Synthesis, characterization and photocatalytic reactivities of Mo-MCM-41 mesoporous molecular sieves : Effect of the Mo content on the local structures of Mo-oxides. / Higashimoto, Shinya; Hu, Yun; Tsumura, Rie; Iino, Kiyoshi; Matsuoka, Masaya; Yamashita, Hiromi; Shul, Yong Gun; Che, Michel; Anpo, Masakazu.

In: Journal of Catalysis, Vol. 235, No. 2, 25.10.2005, p. 272-278.

Research output: Contribution to journalArticle

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AU - Iino, Kiyoshi

AU - Matsuoka, Masaya

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AU - Shul, Yong Gun

AU - Che, Michel

AU - Anpo, Masakazu

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