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Enhanced activity of Au/NiO nanohybrids for the reductive amination of benzyl alcohol

Chan-Thaw, Carine, Chinchilla, Lidia, Sanchez Trujillo, Felipe Juan, Dimitratos, Nikolaos, Botton, Gianluigi, Prati, Laura and Villa, Alberto 2017. Enhanced activity of Au/NiO nanohybrids for the reductive amination of benzyl alcohol. Materials 10 (12) , 1435. 10.3390/ma10121435

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Abstract

Gold nanoparticles were prepared by sol immobilization (AuSI) or deposition precipitation (AuDP), then deposited on NiO and commercial TiO2 (P25). The Au/NiO catalysts showed higher activity and yield to the secondary amine, compared to Au/TiO2 catalysts, when tested for the reductive amination of benzyl alcohol with isopropylamine. We attribute this result to a synergistic effect between Au and NiO. Moreover, as a result of the protective effect of the polyvinyl alcohol used in the sol immobilization synthesis, the gold nanoparticles on NiO demonstrate an increased resistance to structural changes during the reaction. This effect results in enhanced catalytic efficiency in terms of activity, and better stability against deactivation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Publisher: MDPI Publishing
ISSN: 1996-1944
Date of First Compliant Deposit: 2 January 2018
Date of Acceptance: 15 December 2017
Last Modified: 03 Jan 2018 10:26
URI: http://orca.cf.ac.uk/id/eprint/107827

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