کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1275813 | 1497463 | 2015 | 7 صفحه PDF | دانلود رایگان |
• Cobalt oxide/nanocarbon hybrid materials are prepared.
• Co3O4/NCNT catalyst exhibits high catalytic activity for ORR.
• Microbial fuel cell with Co3O4/NCNT cathode demonstrates good stability.
Cobalt oxide/nanocarbon hybrid materials (graphene and carbon nanotube) are used as alternative cathode catalysts for oxygen reduction reaction in air-cathode microbial fuel cell (MFC) for the first time. Electrochemical results reveal that these hybrid materials exhibit high catalytic performance. In MFCs, the maximum power density of 469 ± 17 mW m−2 is achieved from the Co3O4/NCNT cathode, which is 5.3 times larger than that of the NCNT cathode. This value is competitive with those obtained using Pt/C (603 ± 23 mW m−2). Therefore, Co3O4/NCNT nanocomposite is an efficient and cost-effective cathode catalyst for practical MFC applications.
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 10, 16 March 2015, Pages 3868–3874