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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

echanochemical Strategies for the Preparation of SiO2-Supported AgAu Nanoalloy Catalyst

Full text
Author(s):
da Silva, Rafael T. P. [1] ; Cordoba De Torresi, Susana I. [1] ; de Oliveira, Paulo F. M. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Inst Chem, Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: RONTIERS IN CHEMISTR; v. 10, FEB 2 2022.
Web of Science Citations: 0
Abstract

Silver-gold nanoalloys were prepared from their metal salts precursors through bottom-up mechanochemical synthesis, using one-pot or galvanic replacement reaction strategies. The nanostructures were prepared over amorphous SiO2 as an inert supporting material, facilitating their stabilization without the use of any stabilizing agent. The nanomaterials were extensively characterized, confirming the formation of the bimetallic nanostructures. The nanoalloys were tested as catalysts in the hydrogenation of 2-nitroaniline and exhibited up to 4-fold the rate constant and up to 37% increased conversion compared to the respective single metal nanoparticles. Our approach is advantageous to produce nanoparticles with clean surfaces with available catalytic sites, directly in the solid-state and in an environmentally friendly manner. (AU)

FAPESP's process: 15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage
Grantee:Roberto Manuel Torresi
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/16219-5 - Origin and fate of PHO-constitutive mutants in Escherichia coli
Grantee:Beny Spira
Support Opportunities: Regular Research Grants
FAPESP's process: 21/12899-4 - Designing the next generation of advanced multicomponent materials through mechanochemical synthesis
Grantee:Paulo Filho Marques de Oliveira
Support Opportunities: Scholarships in Brazil - Young Researchers
FAPESP's process: 20/14955-6 - Designing the next generation of advanced multicomponent materials through mechanochemical synthesis
Grantee:Paulo Filho Marques de Oliveira
Support Opportunities: Research Grants - Young Investigators Grants