Department of Chemical Engineering, Monash University, Clayton, Vitoria 3800, Australia.
Fuels and Energy Technology Institute & Department of Chemical, Engineering, Curtin University, Perth, WA 6102, Australia.
Nanoscale. 2017 Apr 20;9(16):5323-5328. doi: 10.1039/c7nr00978j.
We present a new strategy for in situ transformation of metal-organic framework (MOF) crystals to hollow metal-organic structures through polycondensation of dopamine. The hollow metal-polydopamine (PDA) particles are formed by a coordination assembly of metal ions (Co and Zn) and PDA, inheriting the morphology of MOF (ZIF-67 and ZIF-8) crystals. The hollow porous metal/N-carbon particles morphosynthetically transformed from hollow metal-PDA particles exhibit excellent oxygen reduction electrocatalytic activity. The strategy presented here is promising for synthesizing hollow metal-organic polymer (metal-carbon) particles with diverse morphologies for energy and environmental applications.
我们提出了一种新的策略，通过多巴胺的缩聚反应将金属有机骨架（MOF）晶体原位转化为中空金属有机结构。中空金属-聚多巴胺（PDA）粒子是通过金属离子（Co 和 Zn）和 PDA 的配位组装形成的，继承了 MOF（ZIF-67 和 ZIF-8）晶体的形态。从中空金属-PDA 粒子形态转化而来的中空多孔金属/N-碳粒子表现出优异的氧还原电催化活性。这里提出的策略有望用于合成具有不同形态的中空金属有机聚合物（金属-碳）粒子，以用于能源和环境应用。
Angew Chem Int Ed Engl. 2015-9-7
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