Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 156, Issue 1, Pages 225-229Publisher
ACADEMIC PRESS INC
DOI: 10.1006/jssc.2000.8992
Keywords
goethite; hematite; methane oxidation; in situ XRD; in situ IR
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This paper examines the methane oxidation activity of iron oxides from goethite synthesized from different types of iron compounds. The variation of crystal structure caused by heat treatment of goethite under methane and oxygen gas mixtures was investigated by in situ X-rag diffractometry and in situ infrared spectroscopy. Methane oxidation commenced at a low temperature of 573 K when goethite was used as a catalyst, after the goethite had changed into hematite by dehydration at approximately 493 K, It was found that the active species in methane oxidation was hematite, (C) 2001 Academic Press.
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