Electricity generation from acetate and glucose by sedimentary bacterium attached to electrode in microbial-anode fuel cells |
| |
| Affiliation: | 1. Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China;2. School of Civil Engineering, Southeast University, Nanjing 211189, China;3. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China;1. Bristol BioEnergy Centre, Bristol Robotics Laboratory, University of the West of England, BS16 1QY, UK;2. Biological, Biomedical and Analytical Sciences, University of the West of England, BS16 1QY, UK;3. Research and Development Ceramics, ROCA Sanitario, S.A., Av. de La Generalitat, 231, 08840, Barcelona, Spain;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, China;2. Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China;1. School of Environmental Science and Engineering, Tianjin University, Yaguan Road 135, Tianjin 300350, China;2. Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA;1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;2. State Key Laboratory of Urban Water Resources and Environments (SKLURE), Harbin Institute of Technology, Harbin 150090, China;3. College of Resources and Civil Engineering, Northeastern University, Shenyang 100819, China;1. School of Water Resources, Indian Institute of Technology, Kharagpur 721302, India;2. Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India |
| |
| Abstract: | Microbial-anode fuel cells (MAFCs) with high electron recovery (>50%) from acetate and glucose have been constructed in this study. By inoculating fresh sedimentary microorganisms into anaerobic anode compartments, a stable current (∼0.42 mA for acetate-fed MAFCs; ∼0.35 mA for glucose-fed MAFCs) is generated from the oxidation of the added organic matter until its concentration decreases to a low level. SEM micrographs indicate that thick biofilms of microbial communities (coccoid cells with a diameter of ∼0.5 μm in acetate-fed MAFCs; rod-shaped cells with a length of 2.0–4.0 μm and a width of 0.5–0.7 μm in glucose-fed MAFCs) completely cover the anode electrodes. These anodophillic biofilms are thought to be responsible for the current generation, and make these microbial-anode fuel cells exhibit good performance even when the growth medium is replaced by a salt buffer without any growth factor. In comparison with those microbial fuel cells that require the addition of artificial electron transfer-mediating compounds, the findings in this study imply a potential way to develop excellent mediator-less MAFCs for electricity generation from organic matter by using substrate-induced anodophillic microbial species. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
