Hybrid Amorphous/Crystalline FeNi (Oxy) Hydroxide Nanosheets for Enhanced Oxygen Evolution

CHEMCATCHEM(2019)

Cited 13|Views3
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Abstract
Electrons released from surface reactions need to be transferred quickly to avoid the inhibition for following reactions. Herein, a novel strategy has been demonstrated to achieve outstanding catalytic performance for oxygen evolution reaction (OER), specifically removing interfacial charges through an optimized hybrid amorphous/crystalline FeNi (Oxy)hydroxides. Such hybrid structure offers an overpotential of only 215 mV at the current density of 10 mA cm(-2) and a Tafel slope of 50.9 mV dec(-1) in 1 M KOH, together with outstanding stability. The superior catalytic activity and stability can be attributed to the unique amorphous/crystalline microstructure, leading to optimized reactivity and excellent conductivity.
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Key words
Oxygen evolution reaction,Hybrid structure,FeNiOOH,Low overpotential
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