双金属
材料科学
过电位
层状双氢氧化物
纳米技术
电催化剂
催化作用
金属有机骨架
原位
析氧
电极
电化学
化学
复合材料
有机化学
物理化学
吸附
生物化学
作者
Bingqing Wang,Jing Shang,Chun Guo,Jianze Zhang,Fengnian Zhu,Aijuan Han,Junfeng Liu
出处
期刊:Small
[Wiley]
日期:2019-01-15
卷期号:15 (6)
被引量:142
标识
DOI:10.1002/smll.201804761
摘要
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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