title: Catalytic wet oxidation of aqueous methylamine: comparative study on the catalytic performance of platinum-ruthenium, platinum, and ruthenium catalysts supported on titania.
abstract: Promotion of the dispersion of Ru species supported on TiO2 was achieved by introduction of Pt component and the role of Pt in enhancing the catalytic performances of Pt-Ru was investigated with catalytic wet air oxidation of methylamine used as a probing reaction. It was found that Pt-Ru/TiO2 displayed a much better catalytic performance compared with Pt/TiO2 and Ru/TiO2 catalysts due to having the highest dispersion of active species. Both high total organic carbon conversion and nitrogen selectivity (∼100%) over Pt-Ru/TiO2 catalyst were achieved at low temperature (200 °C). X-ray photoelectron spectroscopy characterization indicated that there were strong interactions between metal particles and the support, which may increase the catalytic performance of catalysts.
authors.affiliation: a State Key Laboratory for Oxo Synthesis and Selective Oxidation , Lanzhou Institute of Chemical Physics, University of Chinese Academy of Sciences , Lanzhou 730000 , People's Republic of China.
authors.forename: Aiying
authors.initials: A
authors.lastname: Song
authors.forename: Gongxuan
authors.initials: G
authors.lastname: Lu
mesh_terms: D002384:Catalysis; D008744:Methylamines / Q000737:chemistry*; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D018508:Water Purification
chemical_list: D008744:Methylamines; C009495:titanium dioxide; D010984:Platinum; D012428:Ruthenium; C027451:methylamine; D014025:Titanium
keywords: CWAO; Pt–Ru; TiO2; dispersion; methylamine