Isotopic 18O/16O substitution study on the direct partial oxidation of CH4 to dimethyl ether over a Pt/Y2O3 catalyst using NO/O2 as an oxidant. Issue 8 (6th April 2021)

• Record Type: Journal Article
• Authors: Ghampson, I. Tyrone; Lundin, Sean-Thomas B.; Shishido, Tetsuya; Oyama, S. Ted
• Is Part Of: Catalysis science & technology. Volume 11:Issue 8(2021)
• Page Start: 2708
• Page End: 2712
• Publication Date: 2021-04-06
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/d1cy00253h
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : Dimethyl ether (DME) is produced by partial oxidation of CH4 with NO/O2 on Pt/Y2 O3 . Isotopic oxygen ( 18 O2 ) is used to confirm molecular O2 as the ultimate oxidant and a kinetic isotope effect for 18 O/ 16 O is observed. Abstract : The direct partial oxidation of CH4 to dimethyl ether (DME) was achieved with a Pt/Y2 O3 catalyst using a mixture of NO and O2 . The actual gas composition contained a mixture of NO and NO2, with no decomposition or net consumption of these species. Use of 18 O2 confirmed the transfer of labeled oxygen from O2 to CH4, indicating the NO/NO2 mixture worked as a single oxygen atom shuttle.