Superior Catalytic Activity of Electrochemically Reduced
Graphene Oxide Supported Iron Phthalocyanines toward Oxygen Reduction
Reaction
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Abstract
Structure and surface properties
of supporting materials are of great importance for the catalytic
performance of the catalysts. Herein, we prepared the iron phthalocyanine
(FePc) functionalized electrochemically reduced graphene oxide (ERGO)
by the electrochemical reduction of FePc/GO. The resultant FePc/ERGO
exhibits higher catalytic activity toward ORR than that of FePc/graphene.
More importantly, the onset potential for ORR at FePc/ERGO positively
shifts by 45 mV compared with commercial Pt/C in alkaline media. Besides,
FePc/ERGO displays enhanced durability and selectivity toward ORR.
The superior catalytic performance of FePc/ERGO for ORR are ascribed
to the self-supported structure of ERGO, uniformly morphology and
size of FePc nanoparticles