摘要
微生物燃料电池(MFC)是一种解决其他能源在环境方面不足的新技术,目前低能量输出是MFC实际应用的关键瓶颈。基于MFC工作原理,提出微生物活性差、电子迁移阻力、质子传输阻力及阴极还原反应缓慢是MFC能量输出的限制因素,并从以下5个方面综述了提升MFC产电性能策略:调节pH和选择最佳盐度,加强微生物代谢活性;改性阳极材料,降低电子迁移阻力;增强电解液电导率、优化隔膜材料及缩短电极间距减小质子传输阻力;制备高效阴极催化剂和选择优异电子受体加快阴极还原反应速率;改进MFC反应器构型,提高整体产电性能。未来,可在合成新型阴极催化剂、降低膜污染、优化微生物生长环境、制备优异的电极材料和改进MFC反应器配置5个方面开展重点研究。
Microbial fuel cell(MFC)is a new technology that addresses the environmental deficiencies of other energy sources.At present,low energy output is a key bottleneck in the practical application of MFC.Based on the working principle of MFC,it was proposed that poor microbial activity,resistance to electron migration,proton transfer resistance,slow cathodic reduction reaction were the limiting factors for the energy output of MFC.The strategies for improving MFC electricity production performance were summarized from the following five aspects:adjusting pH and selecting the optimal salinity to enhance microbial metabolic activity;modifying anode materials to reduce electron migration resistance;enhancing electrolyte conductivity,optimizing membrane materials,and shortening electrode spacing to reduce proton transfer resistance;preparing efficient cathode catalysts and selecting excellent electron acceptors to accelerate the cathodic reduction reaction rate;and improving the configuration of MFC reactor to improve overall power generation performance.In the future,key research could be carried out in five areas,including synthesis of new cathode catalysts,reduction of membrane pollution,optimization of microbial growth environment,preparation of excellent electrode materials,and improvement of MFC reactor configuration.
作者
蒋进元
张月
何绪文
谭伟
宋浩洋
石冬妮
赵洪兵
JIANG Jinyuan;ZHANG Yue;HE Xuwen;TAN Wei;SONG Haoyang;SHI Dongni;ZHAO Hongbing(Research Center of Environmental Pollution Control Technology,Chinese Research Academy of Environmental Sciences;School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing);Sichuan Guangyuan Ecological Environment Monitoring Center Station)
出处
《环境工程技术学报》
CAS
CSCD
北大核心
2024年第2期699-709,共11页
Journal of Environmental Engineering Technology
基金
黄河流域生态保护和高质量发展联合研究项目(2022-YRUC-01-0203)
广元市长江水生态环境保护研究项目(2022-LHYJ-02-0509-06)。
关键词
微生物燃料电池(MFC)
产电性能
输出功率
微生物活性
策略
microbial fuel cells(MFC)
performance of power generation
output power
microbial activity
strategies
