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题名: Low-cost adsorbent derived and in situ nitrogen/iron co-doped carbon as efficient oxygen reduction catalyst in microbial fuel cells
作者: Cao, Chun1, 2; Wei, Liling1; Su, Min1, 2; Wang, Gang1, 2; Shen, Jianquan1
关键词: Microbial fuel cells ; N/Fe co-doped carbon ; Oxygen reduction catalyst ; Low-cost adsorbent
刊名: BIORESOURCE TECHNOLOGY
发表日期: 2016-08-01
卷: 214, 页:348-354
收录类别: SCI
英文摘要: A novel low-cost adsorbent derived and in situ nitrogen/iron co-doped carbon (N/Fe-C) with three-dimensional porous structure is employed as efficient oxygen reduction catalyst in microbial fuel cells (MFCs). The electrochemical active area is significantly improved to 617.19 m(2) g(-1) in N/Fe-C by Fedoping. And N/Fe-C (4.21 at.% N, 0.11 at.% Fe) exhibits excellent electrocatalytic activity with the oxygen reduction potential of -0.07 V (vs. Ag/AgCl) which is comparable to commercial Pt/C. In MFCs tests, the maximum power density and output voltage with N/Fe-C are enhanced to 745mW m(-2) and 562 mV (external resistance 1 k Omega), which are 11% and 0.72% higher than Pt/C (0.5 mg Pt cm(-2)), respectively. Besides, the long-term stability of N/Fe-C retains better for more than one week. Moreover, the charge transfer resistance (Rct) values are recorded by the impedance measurements, and the low Rct of N/Fe-C is also result in better catalytic activity. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35784
Appears in Collections:绿色印刷实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, BNLMS, Inst Chem, Key Lab Green Printing, Zhongguancun North First St 2, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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