Review on cathode materials for CO2 methanation assisted by microbial electrolytic cell

被引：0
|
作者：
Zheng X. [1 ,2 ]
Lin R. [1 ,2 ]
Zhou W. [1 ,2 ]
Xu L. [1 ,2 ]
Zhang H. [1 ,2 ]
Zhang X. [1 ,2 ]
Xie L. [1 ,2 ]
机构：
[1] Key Laboratory of Yangtze Water Environment of the Ministry of Education, Tongji University, Shanghai
[2] College of Environmental Science and Engineering, Tongji University, Shanghai
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 05期
关键词：
Anaerobic digestion; Carbon dioxide; Cathode materials; Methane; Microbial electrolysis cell (MEC);
D O I：
10.16085/j.issn.1000-6613.2021-1161
中图分类号：
学科分类号：
摘要：
Integrating microbial electrolysis cell (MEC) into anaerobic digestion for enhancing methane production (MEC-AD) is a new technology that has the potential to alleviate the energy crisis and greenhouse effect. With small input of electrical energy, it uses microorganisms as catalyst to decompose organic matter into electrons and protons at the anode while producing hydrogen and methane at the cathode. In recent years, MEC has made significant progress in reactor configuration, cathode material, electron transmission method and the composition of microbial community structure. Among them, high-efficiency and low-cost cathode catalysts, which attracts researchers' attention, is crucial in transforming the idea of MEC into practice. This article reviewed the working principle of MEC-AD in biomethanation and the development status of cathode catalyst including carbon-based cathodes, metal-based cathodes and composite cathodes. The methane yield, electrochemical characteristics, biocompatibility, electron transmission method and microbial community structure of different cathode systems were systematically introduced, compared and discussed according to their advantages and disadvantages. Potential future research directions were pointed out to provide the basis for the engineering application of the MEC-AD technology. © 2022, Editorial Board of CIESC Journal. All right reserved.
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页码：2476 / 2486
页数：10
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