Selective oxidation of styrene over nanostructured cerium–bismuth mixed oxide catalysts

Abstract

In this study, we have prepared CeO2, Bi2O3, and ceria-bismuth mixed oxide (Ce0.8Bi0.2O2, Ce0.7Bi0.3O2, and Ce0.5Bi0.5O2) catalysts through a coprecipitation method. The synthesized catalysts were characterised to understand the structure,...

SiO2 supported Ce–Co mixed oxide catalyzed selective allylic oxidation of cyclohexene

“…Due to differences in the ionic radii of the host ion (Ce) and dopant ion, the resulting strain in the ceria lattice leads to enrichment in the physicochemical properties of CeO 2 which results in improved catalytic properties. Recently our group developed ceria based mixed oxide catalysts for various oxidation reactions such as ethylbenzene, 20 benzylamine, 21 vanillyl alcohol, [22][23][24] styrene oxidation, 25 etc. Additionally, support (e.g., Al 2 O 3 , SiO 2 , MgO, TiO 2 , and ZrO 2 ) could also disperse ceria and prevent the sintering and aggregation of active sites thereby improving the thermal stability of the catalyst through strong metalsupport synergetic interactions which result in enhanced redox properties.…”

“…Due to differences in the ionic radii of the host ion (Ce) and dopant ion, the resulting strain in the ceria lattice leads to enrichment in the physicochemical properties of CeO 2 which results in improved catalytic properties. Recently our group developed ceria based mixed oxide catalysts for various oxidation reactions such as ethylbenzene, 20 benzylamine, 21 vanillyl alcohol, 22–24 styrene oxidation, 25 etc. Additionally, support ( e.g.…”

Mesoporous ceria-supported vanadia catalysts for selective aerobic oxidation of ethylbenzene

“…Ceria-based materials are well-recognized as efficient catalytic systems for three-way catalytic converters in automobiles and superior catalysts in various oxidation reactions, including those involving the oxidation of diesel soot, 21 hydrocarbons, 22 alcohols, 23,24 alkenes, 25,26 benzylamine, 27 etc . This efficacy stems from their exceptional oxygen storage and release capacity (OSC), directly resulting from ceria's easily modulated redox properties (2CeO 2 ↔ Ce 2 O 3 + O 2 ).…”