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Enhancing the power performance of sediment microbial fuel cells by novel strategies: Overlying water flow and hydraulic-driven cathode rotating

文献类型：期刊论文

作者Guo, Fei1,2; Shi, Zongyang1; Yang, Kaiming1; Wu, Yan1; Liu, Hong2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2019-08-15
卷号678页码:533-542
关键词Sediment microbial fuel cells Hydraulic-driven rotating cathode Overlying water flow Diminishing cathodic limitations Microbial community
ISSN号0048-9697
DOI10.1016/j.scitotenv.2019.04.439
通讯作者Liu, Hong(liuhong@cigit.ac.cn)
英文摘要Sediment microbial fuel cells (SMFCs) are promising power sources for environmental monitoring in remote areas and environment-friendly solutions to liver sediment contamination. However, cathodic limitations will significantly decrease power performance and limit its practical application. In this work, the control SMFC (SMFC-C) with cathode horizontally and fully submerged below the overlying water, and the hydraulic-driven rotating cathode SMFC (SMFC-R) was constructed. Overlying water flow and hydraulic-driven cathode rotating as novel strategies for SMFCs towards field applications were proposed. Results demonstrated that better power performance under static condition was obtained in SMFC-R than in SMFC-C, that the overlying water flow could significantly increase the maximum power density (MPD) in SMFC-C over the static condition, and that the cathode rotating further improved MPD in SMFC-R. The MPD obtained under static condition were 26.5 mW/m(2) and 45.1 mW/m(2) in SMFC-C and SMFC-R, which increased to 38.8 mW/m(2)and 47.3 mW/m(2 )under water flow and cathode rotating condition, respectively. Analyses on cathode potential, overlying water pH and dissolved oxygen suggested severe cathodic limitations in SMFC-C under static condition which could be diminished by overlying water flow. However, almost no such limitations were observed in SMFC-R even under static condition, which is probably due to the fact that the cathodic oxygen reaction in SMFC-R mainly occurred on the cathode exposed to the air rather than on that submerged below the water. Identical anode performance was obtained in both SMFCs under different conditions, which were not an influencing factor leading to different power performance (C) 2019 Elsevier B.V. All rights reserved.
资助项目National Science Foundation of China[51525805] ; talents program of Xihua University
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000468618900050
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.138/handle/2HOD01W0/7889]  
专题水污染过程与治理研究中心
通讯作者Liu, Hong
作者单位1.Xihua Univ, Sch Civil Engn Architecture & Environm, Chengdu 610039, Sichuan, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Fei,Shi, Zongyang,Yang, Kaiming,et al. Enhancing the power performance of sediment microbial fuel cells by novel strategies: Overlying water flow and hydraulic-driven cathode rotating[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,678:533-542.
APA Guo, Fei,Shi, Zongyang,Yang, Kaiming,Wu, Yan,&Liu, Hong.(2019).Enhancing the power performance of sediment microbial fuel cells by novel strategies: Overlying water flow and hydraulic-driven cathode rotating.SCIENCE OF THE TOTAL ENVIRONMENT,678,533-542.
MLA Guo, Fei,et al."Enhancing the power performance of sediment microbial fuel cells by novel strategies: Overlying water flow and hydraulic-driven cathode rotating".SCIENCE OF THE TOTAL ENVIRONMENT 678(2019):533-542.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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