Research of modifying of S-doped p-Fe-g-C3N4@KB/rGO as non-precious metal catalyst for oxygen reduction reaction
Developing highly active iron-nitrogen-carbon catalysts for electrocatalytic oxygen reduction reactions(ORR)is piv-otal to future energy technology.In this work,the non-precious metal oxygen reduction catalyst S-doped p-Fe-g-C3N4@KB/rGO with Fe salt was used as metal source,graphite-like phase carbon nitride was used as nitrogen source,and composite of carbon black graphene and KB was used as carbon support.Herein,through electrochemical performance test,the ORR catalytic activity and electrochemical stability of this S-doped p-Fe-g-C3N4@KB/rGO electrocatalyst were systematically investigated.These re-sults not only indicated that this as-prepared non-precious metal catalyst showed excellent catalytic activity under acidic condi-tions,but also represented that the catalytic activity of the catalyst deteriorated by only 15 mV after 4 000 cycles by the ADT test.
oxygen reduction reactionnon-precious metal catalystgraphenegraphitic carbon nitri
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