Carbon supported cobalt oxide nanoparticles-iron phthalocyanine as alternative cathode catalyst for oxygen reduction in microbial fuel cells

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• 作者：Jalal Ahmed^a ; Yong Yuan^b ; ^c ; ^{yuanyong@soil.gd.cn} ; Lihua Zhou^d ; Sunghyun Kim^a ; ^{skim100@konkuk.ac.kr}
• 关键词：Cobalt oxide nanoparticles ; Iron phthalocyanine ; Platinum ; Microbial fuel cell
• 刊名：Journal of Power Sources
• 出版年：2012
• 期刊代码：58_03787753
• 类别：ce
• 出版时间：15 June, 2012
• 卷：208
• 期：Complete
• 页码：170-175
• 文件大小：843 K

摘要

The high cost and limited resources of precious metals as oxygen reduction catalysts (ORR) hindered the widespread use of microbial fuel cells (MFCs) in practice. Here, the feasibility of metal oxide assisted metal macrocyclic complex was investigated as a catalyst for ORR in an air-cathode MFC. Electrochemical results revealed that cobalt oxide (CoOx) incorporation increased the ORR activity of iron phthalocyanine (FePc). In MFCs, the maximum power density of 654 卤 32 mW m^鈭? was achieved from the C-CoOx-FePc cathode, which was 37%higher than the power density of carbon supported FePc (C-FePc). The voltage output of the MFC only decreased to 85%of its initial voltage after 50 cycles, suggesting that the synthesized catalyst showed acceptable long-term stability. The voltage drop partially resulted from the covering of biofilm on the catalyst layer. This work provided a potential alternative to Pt in MFCs for sustainable energy generation.