Highly efficient Fe/N/C catalyst using adenosine as C/N-source for APEFC

• 来源期刊: 能源化学
• 年，卷（期）: 2017,（4）
• 页码范围: 616-621
• 页数: 6页
• 语种: 英文

摘要

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-FeN) is much higher than that of the Fe-free sample (C-N).Additionally,the intermediates of C-FeN formed during each synthetic procedure have been thoroughly characterized by multiple methods,and the function of each procedure has been discussed.The C-FeN 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 mW/cm2.