Feng Li, G. Pattrick, R. Moutloali
Nov 16, 2011
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Influential Citations
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Journal
Rare Metals
Abstract
Hexamethylenetetramine was used as nitrogen resource to prepare platinum-free Fe-N and Co-N electrocatalyst for oxygen reduction reaction (ORR). X-ray diffraction measurement shows that trace Co ions are reduced to Co metal. Cyclic voltammogram experiment shows that the ORR peak potential appears at 200 mV (vs. SCE) in oxygen-saturated acidic media. The Koutecky-Levich analysis indicates that the ORR follows the first-order kinetic reaction and the ORR proceeds mainly via the four-electron reduction.