Characteristics of electricity production by metallic and nonmetallic anodes immersed in mud sediment using sediment microbial fuel cell

7th International Conference on Cooling & Heating Technologies

材料科学;物理学

Haque, N.^1 ; Cho, D.^2 ; Kwon, S.^1

Department of Ocean System Engineering, Gyeongsang National University, Cheondaegukchi- Gil 38, Tongyeong, Gyeongnam

650-160, Korea, Republic of^1

Department of Energy and Environmental Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan- si, Chungnam

336-745, Korea, Republic of^2

关键词: Anodic materials;    Electricity production;    Electron transfer;    Generate electricity;    Marine sediments;    Maximum power density;    Oxidation reduction potential;    Sediment microbial fuel cells;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/88/1/012032/pdf
DOI  :  10.1088/1757-899X/88/1/012032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Sediment microbial fuel cell (SMFC), equipped with Zn, Al, Cu, Fe orgraphite felt (GF) anodeand marine sediment, was performed. Graphite felt was used as a common cathode. SMFC was single chambered and did not use any redox mediator. The aimof this workwas to find efficient anodic material. Oxidation reduction potential (ORP), cell voltage, current density, power density, pH and chemical oxygen demand (COD) were measured for SMFC's performance.The order of maximum power density was 913 mWm-2 for Zn, 646 mWm-2 for Fe, 387.8 mWm-2 for Cu, 266 mWm-2 for Al, and 127 mWm-2 for GF. The current density over voltage was found to be strongly correlated one another in most metal electrodesbutthe graphite felt electrode, in which relatively weaker electricitywas observed because of its bio-oriented mechanism. Metal corrosion reactionsand/or a complicated microbial electron transfer mechanismacting around the anodiccompartment may facilitate to generate electricity. We presume that more sophisticated selection of anodic material can lead to better performance in SMFC.