Dual functional catalysis of [Nb6O19]8−-modified Au/Al2O3. Issue 64 (22nd July 2022)

• Record Type: Journal Article
• Authors: Kikkawa, Soichi; Fukuda, Shoji; Hirayama, Jun; Shirai, Naoki; Takahata, Ryo; Suzuki, Kosuke; Yamaguchi, Kazuya; Teranishi, Toshiharu; Yamazoe, Seiji
• Is Part Of: Chemical communications. Volume 58:Issue 64(2022)
• Page Start: 9018
• Page End: 9021
• Publication Date: 2022-07-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc02472a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Supported Au nanoparticles modified with basic Lindqvist-type [Nb6 O19 ] 8− clusters were fabricated by a simple adsorption method and exhibited efficient reduction activity for p -nitrophenol due to the base and reduction dual functional catalysis. Abstract : A catalyst prepared by modifying the surface of Au nanoparticles (NPs) on Al2 O3 with [Nb6 O19 ] 8− clusters had specific base and reduction abilities, and the reduction of p -nitrophenol to p -aminophenol using H2 as a reductant proceeded efficiently with the dual functional catalyst. At the interface between Au NPs and basic [Nb6 O19 ] 8−, heterolytically cleaved hydrogen species are generated, which can efficiently react with nitrophenolate ions generated by base catalysis. Moreover, this surface modification strategy was applicable to the reduction of other nitro compounds.