Journal
INORGANIC CHEMISTRY FRONTIERS
Volume 5, Issue 8, Pages 1962-1966Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8qi00479j
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Funding
- National Natural Science Foundation of China [21521092]
- Jilin Provincial Science and Technology Development Program of China [20170101092JC]
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Herein, a sandwich-like hybrid that comprises a cobalt-iron alloy core coated with porous N-doped carbon shells (CoFe@NC) anchored on wrinkled reduced graphene oxide (rGO) sheets is synthesized by the one-step in situ pyrolysis of a metal organic framework. The optimized sandwich-like CoFe@NC/rGO achieves superior OER activity, requires a low overpotential of 278 mV to drive 10 mA cm(-2) and maintains a robust durability. The excellent OER performance is ascribed to the 3D sandwich-like architecture, strongly anchored alloy and N-doped carbon shell, and abundant mesopores, which can enable fast electron transfer, ion diffusion, and O-2 release.
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