title: Calcium oxide supported gold nanoparticles as catalysts for the selective epoxidation of styrene by t-butyl hydroperoxide.
abstract: Gold nanoparticles are deposited on basic CaO supports as catalysts for the selective conversion of styrene into styrene oxide. Synthetic methods, gold loading and calcination temperatures are varied to permit an understanding of their influence on gold nanoparticle size, the presence of cationic gold species and the nature of interaction between the gold nanoparticles and the CaO support. Based on these studies, optimal conditions are designed to make the Au/CaO catalyst efficient for the selective epoxidation of styrene.
authors.affiliation: Centre for Advanced Materials and Industrial Chemistry, School of Applied Sciences, RMIT University, Melbourne, Australia.
authors.forename: Deepa K
authors.initials: DK
authors.lastname: Dumbre
authors.forename: Vasant R
authors.initials: VR
authors.lastname: Choudhary
authors.forename: Nilesh S
authors.initials: NS
authors.lastname: Patil
authors.forename: Balu S
authors.initials: BS
authors.lastname: Uphade
authors.forename: Suresh K
authors.initials: SK
authors.lastname: Bhargava
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D002384:Catalysis; D004852:Epoxy Compounds / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D056951:Photoelectron Spectroscopy; D020058:Styrene / Q000737:chemistry*; D013696:Temperature; D020122:tert-Butylhydroperoxide / Q000737:chemistry*
chemical_list: D017610:Calcium Compounds; D004852:Epoxy Compounds; D010087:Oxides; D020058:Styrene; D006046:Gold; D020122:tert-Butylhydroperoxide; C016538:lime
keywords: Au/CaO; Epoxidation of styrene; Gold nanoparticles; Homogenous deposition precipitation method; Styrene oxide