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Single-crystalline dendritic bimetallic and multimetallic nanocubes

Developing facial synthetic routes for fabrication of multimetallic nanocatalysts with open porous morphology, tunable composition and tailored crystalline structure is a big challenge for fabrication of low-cost electrocatalysts. Here we report on the synthesis of single-crystalline dendritic bimet...

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Autores principales: Kuang, Yun, Zhang, Ying, Cai, Zhao, Feng, Guang, Jiang, Yingying, Jin, Chuanhong, Luo, Jun, Sun, Xiaoming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951113/
https://www.ncbi.nlm.nih.gov/pubmed/29861948
http://dx.doi.org/10.1039/c5sc01947h
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author Kuang, Yun
Zhang, Ying
Cai, Zhao
Feng, Guang
Jiang, Yingying
Jin, Chuanhong
Luo, Jun
Sun, Xiaoming
author_facet Kuang, Yun
Zhang, Ying
Cai, Zhao
Feng, Guang
Jiang, Yingying
Jin, Chuanhong
Luo, Jun
Sun, Xiaoming
author_sort Kuang, Yun
collection PubMed
description Developing facial synthetic routes for fabrication of multimetallic nanocatalysts with open porous morphology, tunable composition and tailored crystalline structure is a big challenge for fabrication of low-cost electrocatalysts. Here we report on the synthesis of single-crystalline dendritic bimetallic and multimetallic nanocubes via a solvothermal co-reduction method. These cubes show highly porous, complex 3D inner connections but single-crystalline structure. Tuning the reduction kinetics of metal precursors and introducing galvanic reaction at the active sites during growth were believed to be the keys for the formation of such unique nanostructure. Electro-catalytic oxygen reduction (ORR) and methanol oxidation (MOR) on these catalysts showed dramatic enhancements for both cathodic and anodic electrocatalysis in fuel cells, which were attributed to their unique morphology and crystalline structure, as well as synergetic effect of the multi-metallic components. This work uncovers the formation mechanism of such complex single-crystalline dendritic multimetallic nanocrystals and offers a promising synthetic strategy for geometric and crystalline control of multimetallic nanocrystals with tailored physical and chemical properties, which will benefit the development of clean energy.
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spelling pubmed-59511132018-06-01 Single-crystalline dendritic bimetallic and multimetallic nanocubes Kuang, Yun Zhang, Ying Cai, Zhao Feng, Guang Jiang, Yingying Jin, Chuanhong Luo, Jun Sun, Xiaoming Chem Sci Chemistry Developing facial synthetic routes for fabrication of multimetallic nanocatalysts with open porous morphology, tunable composition and tailored crystalline structure is a big challenge for fabrication of low-cost electrocatalysts. Here we report on the synthesis of single-crystalline dendritic bimetallic and multimetallic nanocubes via a solvothermal co-reduction method. These cubes show highly porous, complex 3D inner connections but single-crystalline structure. Tuning the reduction kinetics of metal precursors and introducing galvanic reaction at the active sites during growth were believed to be the keys for the formation of such unique nanostructure. Electro-catalytic oxygen reduction (ORR) and methanol oxidation (MOR) on these catalysts showed dramatic enhancements for both cathodic and anodic electrocatalysis in fuel cells, which were attributed to their unique morphology and crystalline structure, as well as synergetic effect of the multi-metallic components. This work uncovers the formation mechanism of such complex single-crystalline dendritic multimetallic nanocrystals and offers a promising synthetic strategy for geometric and crystalline control of multimetallic nanocrystals with tailored physical and chemical properties, which will benefit the development of clean energy. Royal Society of Chemistry 2015-12-01 2015-09-09 /pmc/articles/PMC5951113/ /pubmed/29861948 http://dx.doi.org/10.1039/c5sc01947h Text en This journal is © The Royal Society of Chemistry 2015 http://creativecommons.org/licenses/by/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0)
spellingShingle Chemistry
Kuang, Yun
Zhang, Ying
Cai, Zhao
Feng, Guang
Jiang, Yingying
Jin, Chuanhong
Luo, Jun
Sun, Xiaoming
Single-crystalline dendritic bimetallic and multimetallic nanocubes
title Single-crystalline dendritic bimetallic and multimetallic nanocubes
title_full Single-crystalline dendritic bimetallic and multimetallic nanocubes
title_fullStr Single-crystalline dendritic bimetallic and multimetallic nanocubes
title_full_unstemmed Single-crystalline dendritic bimetallic and multimetallic nanocubes
title_short Single-crystalline dendritic bimetallic and multimetallic nanocubes
title_sort single-crystalline dendritic bimetallic and multimetallic nanocubes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5951113/
https://www.ncbi.nlm.nih.gov/pubmed/29861948
http://dx.doi.org/10.1039/c5sc01947h
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