期刊
NANOSCALE
卷 8, 期 3, 页码 1407-1412出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr06930k
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资金
- NSFC [21072001, 51472001, 21372006]
- Ministry of Education
- Ministry of Human Resources and Social Security
- Education Department of Anhui Province
- Anhui Province International Scientific and Technological Cooperation Project
- 211 Project of Anhui University
Using MOFs as size-selection templates, we have for the first time synthesized atom-precise Au-11: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 Au-11: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.
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