TY - JOUR T1 - Stability characterization and modeling of robust distributed benthic microbial fuel cell (DBMFC) system. AU - Karra,Udayarka, AU - Huang,Guoxian, AU - Umaz,Ridvan, AU - Tenaglier,Christopher, AU - Wang,Lei, AU - Li,Baikun, Y1 - 2013/07/02/ PY - 2013/05/09/received PY - 2013/06/23/revised PY - 2013/06/25/accepted PY - 2013/7/30/entrez PY - 2013/7/31/pubmed PY - 2014/4/2/medline KW - A(aq) KW - A(s) KW - BMFC KW - Benthic microbial fuel cell (BMFC) KW - Bioturbation KW - C(AC) KW - C(O2) KW - COD KW - Computational model KW - DBMFC KW - DO KW - F KW - Faraday constant KW - I(cell) KW - I(total) KW - K(AC) KW - LSV KW - MFC KW - Multi anode/cathode arrays KW - NMOS KW - Negative-channel metal-oxide semiconductor KW - OCP KW - ORR KW - P(a/c) KW - P(total) KW - PTFE KW - R KW - R(ext) KW - R(in) KW - Stability KW - T KW - V KW - V(open) KW - X KW - activation overpotential KW - activation overpotential at anode KW - activation overpotential at cathode KW - benthic microbial fuel cell KW - charge transfer coefficient at the anode KW - charge transfer coefficient at the cathode KW - chemical oxygen demand KW - concentration of the dissolved oxygen at the cathode surface KW - concentration overpotential KW - concentration overpotential at anode KW - concentration overpotential at cathode KW - concentrations of acetate at the anode surface KW - concentrations of biomass at the anode surface KW - cross-section area of the sediment KW - cross-section area of the solution KW - current of mfcs KW - d(aq) KW - d(s) KW - dissolved oxygen KW - distance of the electrodes in the sediment KW - distance of the electrodes in the solution KW - distributed benthic microbial fuel cell KW - exchange current coefficient KW - external resistance KW - gas constant KW - half velocity rate constant for acetate KW - internal resistance KW - k(1)(0) KW - linear sweep voltammetry KW - microbial fuel cell KW - non-ideal current loss KW - ohmic overpotential KW - open circuit potential KW - operation temperature KW - overall output current KW - oxygen reduction rate KW - polytetrafluoroethylene KW - power output of one anode/cathode pair KW - r(A) KW - rate constant of the anode reaction at standard conditions KW - reaction rate occurring at the anode KW - resistivity of the sediment KW - resistivity of the solution KW - total harvested power KW - voltage KW - α KW - β KW - γ KW - η(A,act) KW - η(A,con) KW - η(C,act) KW - η(C,con) KW - η(act) KW - η(con) KW - η(ohm) KW - ρ(aq) KW - ρ(s) KW - σ(I) SP - 477 EP - 84 JF - Bioresource technology JO - Bioresour. Technol. VL - 144 N2 - A novel and robust distributed benthic microbial fuel cell (DBMFC) was developed to address the energy supply issues for oceanographic sensor network applications, especially under scouring and bioturbation by aquatic life. Multi-anode/cathode configuration was employed in the DBMFC system for enhanced robustness and stability in the harsh ocean environment. The results showed that the DBMFC system achieved peak power and current densities of 190mW/m(2) and 125mA/m(2) respectively. Stability characterization tests indicated the DBMFC with multiple anodes achieved higher power generation over the systems with single anode. A computational model that integrated physical, electrochemical and biological factors of MFCs was developed to validate the overall performance of the DBMFC system. The model simulation well corresponded with the experimental results, and confirmed the hypothesis that using a multi anode/cathode MFC configuration results in reliable and robust power generation. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/23890975/Stability_characterization_and_modeling_of_robust_distributed_benthic_microbial_fuel_cell__DBMFC__system_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(13)01033-X DB - PRIME DP - Unbound Medicine ER -