{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["6"],"submitter":["Sugiura K"],"pubmed_abstract":["We examined oxidative coupling of methane (OCM) over various Ce-W-O catalysts at 423 K in an electric field. Ce2(WO4)3/CeO2 catalyst showed high OCM activity. In a periodic operation test over Ce2(WO4)3/CeO2 catalyst, C2 selectivity exceeded 60% during three redox cycles. However, Ce2(WO4)3/CeO2 catalyst without the electric field showed low activity, even at 1073 K: CH4 Conv., 6.0%; C2 Sel., 2.1%. A synergetic effect between the Ce2(WO4)3 structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS, in-situ Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce2(WO4)3 (short W-O bonds in distorted WO4 unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field."],"journal":["Scientific reports"],"pagination":["25154"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC4846874"],"repository":["biostudies-literature"],"pubmed_title":["Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce-W-O catalyst system."],"pmcid":["PMC4846874"],"pubmed_authors":["Ogo S","Sugiura K","Iwasaki K","Sekine Y","Yabe T"],"additional_accession":[]},"is_claimable":false,"name":"Low-temperature catalytic oxidative coupling of methane in an electric field over a Ce-W-O catalyst system.","description":"We examined oxidative coupling of methane (OCM) over various Ce-W-O catalysts at 423 K in an electric field. Ce2(WO4)3/CeO2 catalyst showed high OCM activity. In a periodic operation test over Ce2(WO4)3/CeO2 catalyst, C2 selectivity exceeded 60% during three redox cycles. However, Ce2(WO4)3/CeO2 catalyst without the electric field showed low activity, even at 1073 K: CH4 Conv., 6.0%; C2 Sel., 2.1%. A synergetic effect between the Ce2(WO4)3 structure and electric field created the reactive oxygen species for selective oxidation of methane. Results of XAFS, in-situ Raman and periodic operation tests demonstrated that OCM occurred as the lattice oxygen in Ce2(WO4)3 (short W-O bonds in distorted WO4 unit) was consumed. The consumed oxygen was reproduced by a redox mechanism in the electric field.","dates":{"release":"2016-01-01T00:00:00Z","publication":"2016 Apr","modification":"2024-11-13T19:27:08.758Z","creation":"2019-03-27T02:12:30Z"},"accession":"S-EPMC4846874","cross_references":{"pubmed":["27118726"],"doi":["10.1038/srep25154"]}}