Abstract
With sodium alginate and graphene oxide (GO) as raw materials, cobalt alginate/GO aerogel was prepared by ion-exchange reaction and subsequent freeze-drying technique. The aerogel was transported into a Co/N-rGO composite material through high-temperature carbonization at ammonia atmosphere. The Co/N-rGO composite material was then used for catalyzing oxygen reduction reaction in fuel cell and showed excellent catalytic activity and stability.
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