Partial oxidation of methane to formaldehyde on bulk and silica supported MoO3 and V2O5 catalysts: Surface features and reaction mechanism | Health & Environmental Research Online (HERO)

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HERO ID

2454886

Reference Type

Journal Article

Title

Partial oxidation of methane to formaldehyde on bulk and silica supported MoO3 and V2O5 catalysts: Surface features and reaction mechanism

Author(s)

Parmaliana, A; Arena, F; Frusteri, F; Giordano, N; Scurrell, MS; Sokolovskii, V

Year

1997

Is Peer Reviewed?

Journal

Studies in surface science and catalysis
ISSN: 0167-2991

Book Title

Studies in Surface Science and Catalysis

Volume

107

Page Numbers

23-28

Web of Science Id

WOS:A1997BJ22F00004

Abstract

The mechanism of the partial oxidation of methane to formaldehdye with O-2 has been investigated on bulk and differently loaded silica supported (4-7 wt%) MoO3 and (5-50 wt%) V2O5 catalysts at 650 degrees C in a pulse reactor connected to a quadrupole mass spectrometer. The results indicate that on bare SiO2, low and medium loaded silica supported MoO3 and V2O5 catalysts the reaction proceeds via a concerted mechanism involving the activation of gasphase oxygen on the reduced sites of the catalyst surface, while on highly loaded catalysts as well as on bulk MoO3 and V2O5 the reaction pathway via redox mechanism becomes predominant.

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