Título
Stabilisation of small mono- and bimetallic gold–silver nanoparticles using calix[8]arene derivatives
Autor
Priyanka Ray
Marie Clément
Cyril Martini
ibrahim abdellah
Patricia Beaunier
JOSE LUIS RODRIGUEZ LOPEZ
Vincent Huc
Hynd Remita
Isabelle Lampre
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1039/C8NJ02451K
Materias
Metal-cluster catalysts - (AUTOR) One-pot synthesis - (AUTOR) Aqueous-solutions - (AUTOR) Magnetic nanoparticles - (AUTOR) Spectral properties - (AUTOR) Pulse-radiolysis - (AUTOR) Atomic-structure - (AUTOR) Drug-delivery - (AUTOR) Liquid-phase - (AUTOR) Reduction - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) QUÍMICA - (CTI) QUÍMICA - (CTI)
Resumen o descripción
"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."
Editor
Royal Society of Chemistry
Fecha de publicación
2018
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Sugerencia de citación
New J. Chem., 2018,42, 14128-14137.
Repositorio Orígen
Repositorio IPICYT
Descargas
1539