期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 35, 页码 12185-12189出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201907136
关键词
cluster compounds; electrocatalysis; methanol oxidation reaction; metal-organic frameworks
资金
- NSF of China [21673127, 21671119, 51572152, 21805165]
- Opening Project of Key Laboratory of Polyoxometalate Science of Ministry of Chinese Education
- 111 Project of Hubei Province [2018-19-1]
Embedding cubane [M-4(OH)(4)] (M=Ni, Co) clusters within the matrix of metal-organic frameworks (MOFs) is a strategy to develop materials with unprecedented synergistic properties. Herein, a new material type based on the pore-space partition of the cubic primitive minimal-surface net (MOF-14-type) has been realized. CTGU-15 made from the [Ni-4(OH)(4)] cluster not only has very high BET surface area (3537 m(2) g(-1)), but also exhibits bi-microporous features with well-defined micropores at 0.86 nm and 1.51 nm. Furthermore, CTGU-15 is stable even under high pH (0.1 m KOH), making it well suited for methanol oxidation in basic medium. The optimal hybrid catalyst KB&CTGU-15 (1:2) made from ketjen black (KB) and CTGU-15 exhibits an outstanding performance with a high mass specific peak current of 527 mA mg(-1) and excellent peak current density (29.8 mA cm(-2)) at low potential (0.6 V). The isostructural cobalt structure (CTGU-16) has also been synthesized, further expanding the application potential of this material type.
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