Cobalt phthalocyanine as an efficient catalyst for hydrogen evolution reaction
International Journal of Hydrogen Energy(2021)
摘要
Hydrogen production from water splitting is highly desired for the green and clean energy device but remains a great challenge. In this regard, cobalt-phthalocyanine (PyCoPc) and composite of PyCoPc with graphene oxide (GO) were fabricated and used as catalyst for the energy conversion. The as-synthesized PyCoPc/GO exhibits an efficient hydrogen evolution reaction due to the low overpotential ~253 mV at a 10 mA cm−2 current density with a Tafel slope ~96 mV dec−1 in alkaline media. Our study reveals that the active area of the catalyst was controlled with the help of π−π stacking interaction between GO and PyCoPc. Technologically, a highly efficient PyCoPc catalyst was developed for hydrogen evolution reaction.
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关键词
Cobalt-phthalocyanine,Graphene oxide,Hydrogen evolution reaction
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