Partial oxidation of methane over CeO2 catalyst

Hyun Seog Roh, Ki Won Jun, Seung Chan Baek, Sang Eon Park

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Partial oxidation of methane has been conducted over CeO2 and it has been found that CeO2 has an extraordinary catalytic activity in the reaction. Its activity was strongly dependent on the CH4/O2 ratio. Total combustion was dominant with stoichiometric feed ratio (CH4/O2 = 2.0) but partial oxidation was favorable with oxygen deficient feed condition. Meanwhile, oscillatory partial oxidation was achieved between the CH4/ O2 ratio of 3.8 and 4.3 and the period depended upon the feed composition. The proposed reaction mechanism is that oxygen vacancies in reduced ceria are supplied with oxygen molecules from the reactant, and then activate adsorbed oxygen, followed by releasing activated oxygen species reacting with methane to produce H2 and CO.

Original languageEnglish
Pages (from-to)799-802
Number of pages4
JournalBulletin of the Korean Chemical Society
Volume23
Issue number6
DOIs
Publication statusPublished - 2002 Jun 20

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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