A comparative study of three types of anode electrodes in a microfluidic microbial fuel cell

Document Type : Research Paper


Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran


Microbial fuel cells (MFCs) are innovative bioelectrochemical approaches for the natural conversion of organic resources into energy based on the metabolic activities of inoculated bacteria that serve as biocatalysts. The main objective of the present study was to examine the effect of zinc foil modified with zinc oxide as a novel anode material to enhance power generation in a microfluidic MFC using oxalate as a substrate. X-ray diffraction and FE-SEM analyses were done for nanostructure confirmation and to understand the morphology of a zinc oxide-coated electrode. The microfluidic MFC performance was investigated and compared with a zinc foil and zinc foil linked stainless steel mesh through an external circuit. The experimental results expressed that the zinc foil, zinc foil externally linked stainless steel, and modified zinc foil as anode electrodes achieved the maximum power density of 2980 W m-3, 1080 W m-3, and 428 W m-3, respectively. The results demonstrated that the zinc oxide nanorods could not act as an effective avenue for improving the microfluidic MFC performance.


Main Subjects

[1]      Rabaey K, Keller J. "Microbial fuel cell cathodes: From bottleneck to prime opportunity?" Water Sci Technol 2008;57:655–9.
[2]      Qiao Y, Bao SJ, Li CM. "Electrocatalysis in microbial fuel cells - From electrode material to direct electrochemistry". Energy Environ Sci 2010;3:544–53.
[3]      Li M, Zhou M, Tian X, Tan C, McDaniel CT, Hassett DJ, et al. "Microbial fuel cell (MFC) power performance improvement through enhanced microbial electrogenicity." Biotechnol Adv 2018;36:1316–27.
[4]      Kjeang E, Djilali N, Sinton D. "Microfluidic fuel cells: A review. J Power Sources 2009;186:353–69.
[5]      Nasharudin MN, Kamarudin SK, Hasran UA, Masdar MS. "Mass transfer and performance of membrane-less micro fuel cell: A review." Int J Hydrogen Energy 2014;39:1039–55.
[6]      Mousavi Shaegh SA, Nguyen NT, Chan SH. "A review on membraneless laminar flow-based fuel cells." Int J Hydrogen Energy 2011;36:5675–94.
[7]      Ren H, Lee HS, Chae J. "Miniaturizing microbial fuel cells for potential portable power sources: Promises and challenges." Microfluid Nanofluidics 2012;13:353–81.
[8]      Mardanpour MM, Yaghmaei S. "Characterization of a microfluidic microbial fuel cell as a power generator based on a nickel electrode." Biosens Bioelectron 2016;79:327–33.
[9]      Fadakar A, Mardanpour MM, Yaghmaei S. "The coupled microfluidic microbial electrochemical cell as a self-powered biohydrogen generator." J Power Sources 2020;451:227817.
[10]    González AF, Pieters L, Hernández RD. "Effectiveness of herbal medicine in renal lithiasis: A review." Siriraj Med J 2020;72:188–94.
[11]    Kartha GK, Li I, Comhair S, Erzurum SC, Monga M. "Co-occurrence of asthma and nephrolithiasis in children." PLoS One 2017;12:1–8.
[12]    Mahajan P V., Salvi PS, Mahajan S, Subramanian S. "A Mini Review of Gastrointestinal Pathology and Nutrition in Autism Spectrum Disorder." J Adv Med Med Res 2019;29:1–8.
[13]    Zhang J, An S, Tang M, Wan Y, Liu Q. "Preventive strategies for patients with both heart disease and depression." Eur J Prev Cardiol 2018;25:1678.
[14]    Arafa A, Eshak ES, Iso H. "Oxalates, urinary stones and risk of cardiovascular diseases." Med Hypotheses 2020;137:109570.
[15]    Liu JL, Lowy DA, Baumann RG, Tender LM. "Influence of anode pretreatment on its microbial colonization." J Appl Microbiol 2007;102:177–83.
[16]    Lowy DA, Tender LM, Zeikus JG, Park DH, Lovley DR. "Harvesting energy from the marine sediment-water interface II. Kinetic activity of anode materials." Biosens Bioelectron 2006;21:2058–63.
[17]    Xu H, Wang L, Wen Q, Chen Y, Qi L, Huang J, et al. "A 3D porous NCNT sponge anode modified with chitosan and Polyaniline for high-performance microbial fuel cell." Bioelectrochemistry 2019;129:144–53.
[18]    Cui D, Wang YQ, Xing LD, Li WS. "Which determines power generation of microbial fuel cell based on carbon anode, surface morphology or oxygen-containing group?" Int J Hydrogen Energy 2014;39:15081–7.
[19]    Zhang P, Liu J, Qu Y, Zhang J, Zhong Y, Feng Y. "Enhanced performance of microbial fuel cell with a bacteria/multi-walled carbon nanotube hybrid biofilm." J Power Sources 2017;361:318–25.
[20]    Scott K, Rimbu GA, Katuri KP, Prasad KK, Head IM. "Application of modified carbon anodes in microbial fuel cells." Process Saf Environ Prot 2007;85:481–8.
[21]    Zhou M, Chi M, Luo J, He H, Jin T. "An overview of electrode materials in microbial fuel cells." J Power Sources 2011;196:4427–35.
[22]    Crittenden SR, Sund CJ, Sumner JJ. "Mediating electron transfer from bacteria to a gold electrode via a self-assembled monolayer." Langmuir 2006;22:9473–6.
[23]    Siu CPB, Chiao M. "A microfabricated PDMS microbial fuel cell." J Microelectromechanical Syst 2008;17:1329–41.
[24]    Cheng S, Liu H, Logan BE. "Increased performance of single-chamber microbial fuel cells using an improved cathode structure." Electrochem Commun 2006;8:489–94.
[25]    Logan BE, Hamelers B, Rozendal R, Schröder U, Keller J, Freguia S, et al. "Microbial fuel cells: Methodology and technology." Environ Sci Technol 2006;40:5181–92.
[26]    Liang Y, Zhai H, Liu B, Ji M, Li J. "Carbon nanomaterial-modified graphite felt as an anode enhanced the power production and polycyclic aromatic hydrocarbon removal in sediment microbial fuel cells." Sci Total Environ 2020;713:136483.
[27]    Naina Mohamed S, Thomas N, Tamilmani J, Boobalan T, Matheswaran M, Kalaichelvi P, et al. "Bioelectricity generation using iron(II) molybdate nanocatalyst coated anode during treatment of sugar wastewater in microbial fuel cell." Fuel 2020;277:118119.
[28]    Liu Y, Zhang X, Zhang Q, Li C. "Microbial Fuel Cells: Nanomaterials Based on Anode and Their Application." Energy Technol 2020;8.