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An environmentally friendly precursor, adenosine, has been used as a dual source of C and N to synthesize nitrogen-doped carbon catalyst with/without Fe. A hydrothermal carbonization method has been used and water is the carbonization media. The morphology of samples with/without Fe component has been compared by HRTEM, and the result shows that Fe can promote the graphitization of carbon. Further electro-chemical test shows that the oxygen reduction reaction(ORR) catalytic activity of Fe-containing sample(C–Fe N) is much higher than that of the Fe-free sample(C–N). Additionally, the intermediates of C–Fe N formed during each synthetic procedure have been thoroughly characterized by multiple methods,and the function of each procedure has been discussed. The C–Fe N sample exhibits high electro-catalytic stability and superior electro-catalytic activity toward ORR in alkaline media, with its half-wave potential 20 mV lower than that of commercial Pt/C(40 wt%). It is further incorporated into alkaline polymer electrolyte fuel cell(APEFC) as the cathode material and led to a power density of 100 m W/cm~2.
An environmentally friendly precursor, adenosine, has been used as a dual source of C and N to synthesize nitrogen-doped carbon catalyst with / without Fe. A hydrothermal carbonization method has been used and water is the carbonization media. The morphology of samples with / without electro-chemical test shows that the oxygen reduction reaction (ORR) catalytic activity of Fe-containing sample (C-FeN) is much higher than that of the Fe-free sample (C-N). Additionally, the intermediates of C-Fe N formed during each synthetic procedure have been thoroughly characterized by multiple methods, and the function of each procedure has been discussed. -Fe N sample exhibits high electro-catalytic stability and superior electro-catalytic activity toward ORR in alkaline media, with its half-wave potential 20 mV lower than that of commercial Pt / C (40 wt%). porated into alkaline polymer electrolyte fuel cell (APEFC) as the cathode material and led to a power density of 100 mW / cm ~ 2.