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Stabilisation of small mono- and bimetallic gold–silver nanoparticles using calix[8]arene derivatives
Priyanka Ray
Marie Clément
Cyril Martini
ibrahim abdellah
Patricia Beaunier
JOSE LUIS RODRIGUEZ LOPEZ
Vincent Huc
Hynd Remita
Isabelle Lampre
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1039/C8NJ02451K
Metal-cluster catalysts
One-pot synthesis
Aqueous-solutions
Magnetic nanoparticles
Spectral properties
Pulse-radiolysis
Atomic-structure
Drug-delivery
Liquid-phase
Reduction
"In this paper, we report the synthesis of octa(hydroxy)-octa(mercaptobutoxy)calix[8]arene and its use as a stabiliser of nanoparticles (NPs). We show that the reduction of gold and/or silver ions in the presence of this calix[8]arene in ethanolic solutions leads to the formation of very small spherical nanoparticles (NPs) that are homogeneous in size. Confinement and cooperative effects due to the macrocyclic structure of the calix[8]arenes account for the obtained small sizes and the homogeneity. In the case of the simultaneous reduction of gold and silver ions, STEM-EDX mappings provide evidence of the formation of alloyed Au-Ag NPs stabilised by calix[8]arenes. The surface accessibility and potential catalytic applications of the NPs are tested using the reduction of 4-nitrothiophenol by NaBH4 as a model reaction."
Royal Society of Chemistry
2018
Artículo
New J. Chem., 2018,42, 14128-14137.
QUÍMICA
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Publicaciones Científicas Nanociencias y Materiales

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