Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol

Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol

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 b...

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Main Authors: Carine E. Chan-Thaw, Lidia E. Chinchilla, Felipe Juan Sanchez Trujillo, Nikolaos Dimitratos, Gianluigi A. Botton, Laura Prati, Alberto Villa
Format: Article
Language:English
Published: MDPI AG 2017-12-01
Series:Materials
Subjects:
gold
NiO nanohybrids
reductive amination
Online Access:https://www.mdpi.com/1996-1944/10/12/1435
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spelling doaj-df26a9254f39466d9ce5d8a8071718b42020-11-25T00:09:36ZengMDPI AGMaterials1996-19442017-12-011012143510.3390/ma10121435ma10121435Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl AlcoholCarine E. Chan-Thaw0Lidia E. Chinchilla1Felipe Juan Sanchez Trujillo2Nikolaos Dimitratos3Gianluigi A. Botton4Laura Prati5Alberto Villa6Department of Chemistry, Università degli Studi di Milano via Golgi 19, 20133 Milan, ItalyCanadian Centre of Electron Microscopy and Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, CanadaCardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF103AT, UKCardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF103AT, UKCanadian Centre of Electron Microscopy and Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, CanadaDepartment of Chemistry, Università degli Studi di Milano via Golgi 19, 20133 Milan, ItalyDepartment of Chemistry, Università degli Studi di Milano via Golgi 19, 20133 Milan, ItalyGold 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.https://www.mdpi.com/1996-1944/10/12/1435goldNiO nanohybridsreductive amination
collection DOAJ
language English
format Article
sources DOAJ
author Carine E. Chan-Thaw
Lidia E. Chinchilla
Felipe Juan Sanchez Trujillo
Nikolaos Dimitratos
Gianluigi A. Botton
Laura Prati
Alberto Villa
spellingShingle Carine E. Chan-Thaw
Lidia E. Chinchilla
Felipe Juan Sanchez Trujillo
Nikolaos Dimitratos
Gianluigi A. Botton
Laura Prati
Alberto Villa
Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
Materials
gold
NiO nanohybrids
reductive amination
author_facet Carine E. Chan-Thaw
Lidia E. Chinchilla
Felipe Juan Sanchez Trujillo
Nikolaos Dimitratos
Gianluigi A. Botton
Laura Prati
Alberto Villa
author_sort Carine E. Chan-Thaw
title Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
title_short Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
title_full Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
title_fullStr Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
title_full_unstemmed Enhanced Activity of Au/NiO Nanohybrids for the Reductive Amination of Benzyl Alcohol
title_sort enhanced activity of au/nio nanohybrids for the reductive amination of benzyl alcohol
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2017-12-01
description 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.
topic gold
NiO nanohybrids
reductive amination
url https://www.mdpi.com/1996-1944/10/12/1435
work_keys_str_mv AT carineechanthaw enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT lidiaechinchilla enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT felipejuansancheztrujillo enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT nikolaosdimitratos enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT gianluigiabotton enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT lauraprati enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
AT albertovilla enhancedactivityofaunionanohybridsforthereductiveaminationofbenzylalcohol
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