Honeycomb-like hierarchical carbon derived from livestock sewage sludge as oxygen reduction reaction catalysts in microbial fuel cells

文献类型： 外文期刊

第一作者： Deng, Lifang

作者： Deng, Lifang;Yuan, Haoran;Ruan, Yingying;Chen, Yong;Cai, Xixi;Zhou, Shungui;Yuan, Yong;Deng, Lifang;Yuan, Haoran;Ruan, Yingying

作者机构：

关键词： Livestock sewage sludge;Honeycomb-like;Electrocatalyst;Oxygen reduction reaction;Microbial fuel cell

期刊名称：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY （ 影响因子：5.816； 五年影响因子：5.242 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Cathode catalysts with excellent efficiencies, low costs and long-term durability in microbial fuel cell (MFC) applications have attracted considerable attention. Herein, hierarchically structured carbons with honeycomb-like interconnected macro-mesoporous frameworks and N, P, and Fe heteroatom doping have been successfully prepared through direct pyrolysis from livestock sewage sludge. In neutral media, the as-prepared activated livestock sewage sludge carbon (LSC-A) catalyst displayed great electrocatalytic activity for the oxygen reduction reaction (ORR), and a maximum power density of 1273 +/- 3 mW/m(2) was obtained when this catalyst applied in MFCs, which is comparable to that of commercial Pt/C (1294 +/- 2 mW/m(2)). Furthermore, after 90 days of operation, the voltage output of the MFC with the LSC-A cathode decreased only 10.2%, which is considerably lower than the 28.4% decrease of the Pt/C cathode, indicating that LSC-A possesses a greater long-term stability than the Pt/C cathode. This study demonstrated that the N, P, Fe-doped honeycomb-like hierarchically structured carbon derived from livestock sewage sludge is a costefficient and promising cathode catalyst for scaling up MFCs. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

分类号： TK

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