Persulfate: A self-activated cathodic electron acceptor for microbial fuel cells

被引：101

作者：

Li, Jun ^{[1
]}

Fu, Qian ^{[1
]}

Liao, Qiang ^{[1
]}

Zhu, Xun ^{[1
]}

Ye, Ding-ding ^{[1
]}

Tian, Xin ^{[1
]}

机构：

[1] Chongqing Univ, Inst Engn Thermophys, Chongqing 400030, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2009年 / 194卷 / 01期

关键词：

Microbial fuel cell; Persulfate; Cathodic electron acceptor; Power density; PROTON-EXCHANGE MEMBRANE; ELECTRICITY-GENERATION; POWER-GENERATION; HYDROGEN-PEROXIDE; PERFORMANCE; AIR; REDUCTION; PEROXYDISULFATE; BIOTECHNOLOGY; MECHANISM;

D O I：

10.1016/j.jpowsour.2009.04.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Potassium persulfate aqueous solution without pH adjustment is used as the cathodic electron acceptor in a two-chamber microbial fuel cell (MFC) in the present study. The performance of the MFC with K2S2O8 solution is evaluated and compared with that of K3Fe(CN)(6) solution. The results show that the maximum power density of the K3Fe(CN)(6) used MFC doubled that with K2S2O8 solution when fresh aqueous solution is used. However, a significant increase in electrical power generation is observed in the case of the MFC with K2S2O8 solution after 2-day operation under an external resistance of 1000 Omega. This improvement can be attributed mainly to the increased cathode performance as a result of the hydrolysis of the persulfate ion in aqueous solution. It is demonstrated that persulfate can be used as an effective cathodic electron acceptor due to its unique capability of self pH adjustment. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：269 / 274

页数：6

共 37 条

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