Synthesis of an amino-functionalized metal–organic framework at a nanoscale level for gold nanoparticle deposition and catalysis

In this study, highly dispersed Au nanoparticles have been immobilized on amino-functionalized metal-organic frameworks (MOFs) viaa novel absorption/reduction method in solution. The amino functionality of the MOF rapidly coordinated with HAuCl sub(4) and acted as the Au(0) precursor in the absence...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2014-01, Vol.2 (48), p.20588-20596
Main Authors: Luan, Yi, Qi, Yue, Gao, Hongyi, Zheng, Nannan, Wang, Ge
Format: Article
Language:English
Subjects:
Alcohols
Catalysts
Dispersion
Gold
Metal-organic frameworks
Nanostructure
Oxidation
Reduction
Sustainability
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Summary:In this study, highly dispersed Au nanoparticles have been immobilized on amino-functionalized metal-organic frameworks (MOFs) viaa novel absorption/reduction method in solution. The amino functionality of the MOF rapidly coordinated with HAuCl sub(4) and acted as the Au(0) precursor in the absence of protecting agents. The resulting Au[at]MOF catalyst was well dispersed in aqueous media taking advantage of its well-defined and uniform sizes and nanomorphologies. The as-synthesized Au[at]MOF catalyst exhibited high catalytic activities in a wide variety of reactions under ambient conditions, such as the base-free aerobic oxidation of alcohols and oxidation/imine formation/reduction reaction sequences. Furthermore, the Au[at]MOF catalyst can be easily recovered and reused several times without leaching of metals or significant loss of activity.
ISSN:2050-7488
2050-7496
DOI:10.1039/c4ta04311a