A synthetic strategy for carbon nanospheres impregnated with highly monodispersed metal nanoparticles

Yang, Tianyu, Ling, Huajuan, Lamonier, Jean-Francois, Jaroniec, Mietek, Huang, Jun, Monteiro, Michael J. and Liu, Jian (2016) A synthetic strategy for carbon nanospheres impregnated with highly monodispersed metal nanoparticles. NPG Asia Materials, 8 e240: 1-7. doi:10.1038/am.2015.145


Author Yang, Tianyu
Ling, Huajuan
Lamonier, Jean-Francois
Jaroniec, Mietek
Huang, Jun
Monteiro, Michael J.
Liu, Jian
Title A synthetic strategy for carbon nanospheres impregnated with highly monodispersed metal nanoparticles
Journal name NPG Asia Materials
ISSN 1884-4049
1884-4057
Publication date 2016-02-01
Year available 2016
Sub-type Article (original research)
DOI 10.1038/am.2015.145
Open Access Status DOI
Volume 8
Issue e240
Start page 1
End page 7
Total pages 7
Place of publication Tokyo, Japan
Publisher Nature Japan
Language eng
Subject 2611 Modelling and Simulation
2500 Materials Science
3104 Condensed Matter Physics
Abstract N-doped mesoporous carbon nanospheres (N-MCN@M) impregnated with uniformly dispersed noble-metal (Au, Pt, Rh, Ru, Ag, Pd and Ir) nanoparticles are rationally designed and synthesized for hydrogenation reactions. This facile and generally applicable synthetic strategy ensured confinement of the noble-metal nanoparticles within different carbon morphologies, including mesoporous spheres, hollow particles and core–shell particles. High loading of the noble-metal nanoparticles from 8 to 44% was accomplished by tuning the initial concentration of metal salts. Even at very high loadings (>40 wt%), a homogeneous dispersion of uniform metal nanoparticles throughout the carbon nanostructures was achieved. The proposed synthesis is also well suited for the fabrication of carbon spheres loaded with bimetallic nanoparticles (AuPt, AuRh and PtRh). Examination of these metal-loaded carbon particles as catalysts for the hydrogenation of benzaldehyde gave 100% selectivity toward carbonyl group at room and higher reaction temperatures. The outstanding performance of Au nanoparticles gave an unprecedented turn over frequency 2–4 times greater than those of Pt nanoparticles with the same size, loading and support.
Keyword Materials Science, Multidisciplinary
Materials Science
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID DP1094070
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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