Catalytic reduction of 4-nitrophenol with ...
Document type :
Article dans une revue scientifique: Article original
DOI :
Permalink :
Title :
Catalytic reduction of 4-nitrophenol with gold nanoparticles stabilized by large-ring cyclodextrins
Author(s) :
Noel, Sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Bricout, Herve [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Sonnendecker, Christian [Auteur]
Zimmermann, Wolfgang [Auteur]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Leger, Bastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Bricout, Herve [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Sonnendecker, Christian [Auteur]
Zimmermann, Wolfgang [Auteur]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Leger, Bastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
New Journal of Chemistry
Abbreviated title :
New. J. Chem.
Volume number :
44
Pages :
21007-21011
Publisher :
Royal Society of Chemistry
Publication date :
2020-12-21
ISSN :
1144-0546
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
The synthesis of gold nanoparticles stabilized in an aqueous phase by cyclodextrins (CD) was performed. The solvent-dispersed nanoparticles were characterized by transmission electron microscopy, UV-vis spectroscopy and ...
Show more >The synthesis of gold nanoparticles stabilized in an aqueous phase by cyclodextrins (CD) was performed. The solvent-dispersed nanoparticles were characterized by transmission electron microscopy, UV-vis spectroscopy and dynamic light scattering analysis. Nanoparticles stabilized with large-ring CD composed of 9 or more glucose units showed a broader distribution of sizes and a larger hydrodynamic diameter compared to those stabilized with α-CD, β-CD and γ-CD. Gold nanoparticles stabilized by large-ring CD efficiently reduced 4-nitrophenol to 4-aminophenol with higher reaction rates compared to those stabilized by α-CD. NMR analysis proved that no complex formation between 4-nitrophenol and the large-ring CD occurred. The catalytic activities obtained with gold nanoparticles stabilized by large-ring CD were comparable to those observed with β-CD and γ-CD confirming their suitability for an efficient stabilization of catalytically active nanoparticles.Show less >
Show more >The synthesis of gold nanoparticles stabilized in an aqueous phase by cyclodextrins (CD) was performed. The solvent-dispersed nanoparticles were characterized by transmission electron microscopy, UV-vis spectroscopy and dynamic light scattering analysis. Nanoparticles stabilized with large-ring CD composed of 9 or more glucose units showed a broader distribution of sizes and a larger hydrodynamic diameter compared to those stabilized with α-CD, β-CD and γ-CD. Gold nanoparticles stabilized by large-ring CD efficiently reduced 4-nitrophenol to 4-aminophenol with higher reaction rates compared to those stabilized by α-CD. NMR analysis proved that no complex formation between 4-nitrophenol and the large-ring CD occurred. The catalytic activities obtained with gold nanoparticles stabilized by large-ring CD were comparable to those observed with β-CD and γ-CD confirming their suitability for an efficient stabilization of catalytically active nanoparticles.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
CNRS
Centrale Lille
ENSCL
INRA
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
INRA
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Catalyse et chimie supramoléculaire (CASU)
Submission date :
2022-03-08T13:47:39Z