Tuning cobalt eg occupation of Co-NCNT by manipulation of crystallinity facilitates more efficient oxygen evolution and reduction

Journal of Catalysis(2020)

Cited 11|Views76
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Abstract
•Tuning Co species composition (Co0, CoII and CoIII) by engineering crystallinity.•CoIII species are associated with the ORR, while CoII is responsible for OER.•S700 with eg occupation of 0.714 exhibits highest bifunctional OER/ORR activities.
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Key words
Oxygen evolution reaction,Oxygen reduction reaction,Bifunctional catalysts,Oxidation state,eg occupation
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