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Issue 3, 2016
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Size-confined growth of atom-precise nanoclusters in metal–organic frameworks and their catalytic applications

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Abstract

Using MOFs as size-selection templates, we have for the first time synthesized atom-precise Au11:PPh3 nanoclusters (NCs) and Au13Ag12:PPh3 NCs with high purity by a one-step, in situ reduction method. Specifically, we found that the product released from the frameworks of ZIF-8 is exclusively the Au11:PPh3 NCs rather than polydispersed NCs, and inside MIL-101(Cr) the Au13Ag12:PPh3 NCs constitute the exclusive product. The metal NC@MOF composites are also demonstrated for catalytic application. The high catalytic efficiency for the oxidation of benzyl alcohol indicates that atom-precise noble metal NCs@MOFs may act as a promising class of heterogeneous catalysts. The atom-precise NCs obtained in the MOF templated synthesis imply the future possibility of using MOFs of various pore sizes for the size-selective synthesis of atomically precise NCs. Meanwhile, metal NCs@MOFs will contribute to the understanding of the mechanism of nanocatalyst surface reactions and hence opens up enormous opportunities in heterogeneous catalysis.

Graphical abstract: Size-confined growth of atom-precise nanoclusters in metal–organic frameworks and their catalytic applications

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Article information


Submitted
07 Oct 2015
Accepted
03 Dec 2015
First published
16 Dec 2015

Nanoscale, 2016,8, 1407-1412
Article type
Paper

Size-confined growth of atom-precise nanoclusters in metal–organic frameworks and their catalytic applications

L. Liu, Y. Song, H. Chong, S. Yang, J. Xiang, S. Jin, X. Kang, J. Zhang, H. Yu and M. Zhu, Nanoscale, 2016, 8, 1407
DOI: 10.1039/C5NR06930K

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