Synthesis of hydrogen peroxide in microbial fuel cell

被引：116

作者：

Fu, Lei ^{[1
]}

You, Shi-Jie ^{[2
]}

Yang, Feng-lin ^{[1
]}

Gao, Ming-ming ^{[3
]}

Fang, Xiao-hong ^{[1
]}

Zhang, Guo-quan ^{[1
]}

机构：

[1] Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn, MOE, Sch Environm & Biol Sci & Technol, Dalian 116024, Peoples R China

[2] Harbin Inst Technol, SKLUWRE, Harbin 150090, Peoples R China

[3] Shandong Univ, Dept Environm Sci & Engn, Jinan 250100, Peoples R China

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2010年 / 85卷 / 05期

关键词：

microbial fuel cell; hydrogen peroxide; spectrographically pure graphite; oxygen reduction reaction; CARBON ELECTRODES; OXYGEN REDUCTION; CATHODE; CHALLENGES; CATALYSIS; SYSTEM;

D O I：

10.1002/jctb.2367

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

BACKGROUND: Hydrogen peroxide (H2O2) is an important chemical product, and this study investigated its synthesis at the cathode of a microbial fuel cell (MFC) system using spectrographically pure graphite (SPG) rods as cathode electrode. RESULTS: Electrochemical methods showed that oxygen reduction reaction (ORR) on SPG mainly followed the two-electron pathway yielding H2O2, while, the optimal condition for H2O2 production was in 0.1 mol L-1 Na2SO4 electrolyte. When SPG was used as the cathodic electrode in the MFC system, H2O2 concentration reached 78.85 mg L-1 after 12 h operation with an external resistance of 20 Omega (H2O2 production rate was 6.57 mg L-1 h(-1)). Coulombic efficiency, current efficiency and COD conversion efficiency were 12.26%, 69.47% and 8.51%, respectively. Repeated experiments proved this system had a stable operating performance. CONCLUSIONS: H2O2 was synthesized at the cathode of an MFC, and this study provides a proof-of-concept demonstration to realize the process of synthesizing H2O2 with wastewater. (C) 2010 Society of Chemical Industry

引用

页码：715 / 719

页数：5

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