| Title: |
Insight into the surface composition of bimetallic nanocatalysts obtained from microemulsions |
| Authors: |
Tojo, Concha; Buceta Fernández, David; López Quintela, Manuel Arturo |
| Contributors: |
Universidade de Santiago de Compostela. Departamento de Química Física |
| Publisher Information: |
Elsevier |
| Collection: |
Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC) |
| Subject Terms: |
Nanocatalysts; Bimetallic nanoparticles; Microemulsion; One-pot method |
| Description: |
The enhancement of catalysts efficiency of bimetallic nanoparticles depends on the ability to exert control over surface composition. However, results relating surface composition and feeding solution of bimetallic nanoparticles synthesized in microemulsions are controversial and apparently contradictory. In order to comprehend how the resulting surface can be modified under different synthesis conditions and for different pairs of metals, a computer simulation study was carried out. The resulting surface compositions are explained based on the relative rates of deposition of the two metals, which depend on the particular metal pair, the concentration of reactants and the microemulsion composition. This study provides a satisfactory understanding of experimental results and allows us to identify the main factors affecting the nanoparticle’s surface composition. Consequently, concrete and practical guidelines can be established to facilitate the experimental synthesis of bimetallic nanoparticles with tailored surfaces ; This work was supported by Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia, Spain (Grupos Ref. Comp. ED431C 2017/22; and AEMAT ED431E2018/08), “la Caixa” Foundation-Ref: LCF/PR/PR12/11070003”) ; SI |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
https://doi.org/10.1016/j.jcis.2021.06.040; http://hdl.handle.net/10347/26516 |
| DOI: |
10.1016/j.jcis.2021.06.040 |
| Availability: |
http://hdl.handle.net/10347/26516; https://doi.org/10.1016/j.jcis.2021.06.040 |
| Rights: |
© 2021 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) ; Attribution-NonCommercial-NoDerivatives 4.0 Internacional ; http://creativecommons.org/licenses/by-nc-nd/4.0/ ; open access |
| Accession Number: |
edsbas.F9FFAB27 |
| Database: |
BASE |