Sinter-resistant gold nanoparticles encapsulated by zeolite nanoshell for oxidation of cyclohexane

Abstract

We report hydrothermal synthesis of sinter-resistant gold nanoparticle encapsulated by zeolite shells, which serve the role of stabilizing Au nanoparticles against sintering during cyclohexane oxidation.

Supported Gold Nanoparticles as Catalysts for the Oxidation of Alcohols and Alkanes

“…Silica-based materials have also been used (Zhao et al, 2005; Zhu et al, 2005; Xu et al, 2007b, 2008; Li et al, 2009a; Wu et al, 2011a,b,c, 2016b; Wang C. H. et al, 2013; Zhou et al, 2014; Gui et al, 2015; Saxena et al, 2016; Chen L. F. et al, 2017). Au/mesoporous silica showed high catalytic activity and selectivity for cyclohexane oxidation using O 2 in solvent-free conditions (Zhu et al, 2005; Wu et al, 2011a,b,c, 2016b).…”

Supported Gold Nanoparticles as Reusable Catalysts for Oxidation Reactions of Industrial Significance

“…They have been used successfully in cyclohexane oxidation. Some of the supports used are carbon materials, metal oxides, metal–organic frameworks, zeolites, mesoporous and other silica‐based, materials, modified aluminas, hydroxyapatite, C 3 N 4 , and photocatalytically active materials . There is no consensus on if Au acts as a catalyst or as a promoter of the autoxidation reaction .…”

CuO/Graphene Oxide Nanocomposite as Highly Active and Durable Catalyst for Selective Oxidation of Cyclohexane

“…Oxidation of relatively inert carbon‐hydrogen bond of hydrocarbons constitute one of the most desirable and challenging topic in oxidation chemistry, because of the value attached preference to certain oxidized products . The oxidized products are very important intermediates in the production of adipic acid, Nylon‐6 and Nylon‐66 polymers.…”