期刊
SMALL
卷 15, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201804761
关键词
arrays; bimetal-metal-organic frameworks (MOFs); layered double hydroxides (LDHs); nanosheets; oxygen evolution reaction (OER)
类别
资金
- National Key Research and Development Program of China [2017YFA0206500]
- National Natural Science Foundation of China (NSFC)
- Beijing Natural Science Foundation [2172042]
- PetroChina Innovation Foundation
- Fundamental Research Funds for the Central Universities
Structure engineering of ultrathin metal-organic framework (MOF) nanosheets to self-supporting and well-aligned MOF superstructures is highly desired for diverse applications, especially important for electrocatalysis. In this work, a facile layered double hydroxides in situ transformation strategy is developed to synthesize ultrathin bimetal-MOF nanosheets (BMNSs) arrays on conductive substrates. This approach is versatile, and applicable to obtain various BMNSs or even trimetal-MOF nanosheets arrays on different substrates. As a proof of concept application, the obtained ultrathin NiCo-BDC BMNSs array exhibits an excellent catalytic activity toward the oxygen evolution reaction with an overpotential of only 230 mV to reach a current density of 10 mA cm(-2) in 1 m KOH. The present work demonstrates a strategy to prepare ultrathin bimetal-MOF nanosheets arrays, which might open an avenue for various promising applications of MOF materials.
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