MOF Derived Co-CNT Nanosheet Array as Efficient Electocatalyst for Hydrogen Evolution Reaction
Developing inexpensive and efficient electrocatalysts for hydrogen evolution reaction remains an important but challenging issue.In this work,the self-supporting Co-metal organic framework was used as the precursor to prepare the Co nanoparticles embedded carbon nanotubes nanosheet array on the nickel foam(abbreviated as Co CNT/NF)through a one-step carbonization.The Co CNT/NF exhibits excellent catalytic performance towards hydrogen evolution reaction under alkaline conditions.When delivering a current of 10 A·cm-2,Co CNT/NF only requires an overpotential of-134 mV.And the catalytic activity can be maintained for at least 12 h.The combination of smaller resistance and abundant catalytic sites results in its excellent catalytic performance.This simple and efficient synthesis method will provide new inspiration for the development of new catalysts derived from metal organic frameworks and their applications in energy storage.
metal organic frameworkcobalt nanoparticlescarbon nanotubeselectrocatalysishydrogen evolution reaction
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