title: Catalytic oxidation of propylene, toluene, carbon monoxide, and carbon black over Au/CeO₂ solids: comparing the impregnation and the deposition-precipitation methods.
abstract: Au/CeO₂ solids were prepared by two methods: deposition-precipitation (DP) and impregnation (Imp). The prepared solids were calcined under air at 400°C. Both types of catalysts have been tested in the total oxidation of propylene, toluene, carbon monoxide, and carbon black. Au/CeO₂-DP solids were the most reactive owing to the high number of gold nanoparticles and Au⁺ species and the low concentration of Cl⁻ ions present on its surface compared to those observed in Au/CeO₂-Imp solids.
authors.affiliation: Université Lille Nord de France, 59000 Lille, France ; Equipe Catalyse, UCEIV, E.A. 4492, MREI 1, ULCO, 145 avenue Maurice Schumann, 59140 Dunkerque, France.
authors.forename: Antoine
authors.initials: A
authors.lastname: Aboukaïs
authors.forename: Samer
authors.initials: S
authors.lastname: Aouad
authors.forename: Houda
authors.initials: H
authors.lastname: El-Ayadi
authors.forename: Mira
authors.initials: M
authors.lastname: Skaf
authors.forename: Madona
authors.initials: M
authors.lastname: Labaki
authors.forename: Renaud
authors.initials: R
authors.lastname: Cousin
authors.forename: Edmond
authors.initials: E
authors.lastname: Abi-Aad
mesh_terms: D000327:Adsorption; D000475:Alkenes / Q000737:chemistry*; D002248:Carbon Monoxide / Q000737:chemistry*; D002384:Catalysis; D002563:Cerium / Q000737:chemistry*; D011232:Chemical Precipitation; D002849:Chromatography, Gas; D005740:Gases; D006046:Gold / Q000737:chemistry*; D008854:Microscopy, Electron; D053758:Nanoparticles; D010084:Oxidation-Reduction; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D012996:Solutions; D053260:Soot / Q000737:chemistry*; D014050:Toluene / Q000737:chemistry*
chemical_list: D000475:Alkenes; D005740:Gases; D012996:Solutions; D053260:Soot; D002563:Cerium; D014050:Toluene; C030583:ceric oxide; D006046:Gold; D002248:Carbon Monoxide; C013658:propylene