Gold and Ceria as Catalysts for VOC Abatement: A Review

Due to its excellent oxygen storage capacity, ceria is a well-known oxidation catalyst. However, performance in the of volatile organic compounds can be improved by introduction gold. Depending on type VOC oxidized, surface gold nanoparticles and gold/ceria interface may contribute enhanced activity and/or selectivity. Choosing proper preparation method crucial obtain optimal particle size. Deposition–precipitation was found more suitable than coprecipitation or impregnation. For industrial applications, monolithic catalysts are needed minimize pressure drop reactor reduce mass heat transfer limitations. In addition approach used with powder catalysts, employed introduce in/on washcoat has considered.