title: The addition of ortho-hexagon nano spinel Co3O4 to improve the performance of activated carbon air cathode microbial fuel cell.
abstract: Commercial Co3O4 and ortho-hexagon spinel nano-Co3O4 (OHSNC) were doped in the AC at a different percentage (5%, 10% and 15%) to enhance the performance of microbial fuel cell (MFC). The maximum power density of MFC with 10% OHSNC doped cathode was 1500±14 mW m(-2), which was 97.36% and 41.24% higher than that with the bare AC air cathode and commercial Co3O4 respectively. The electrocatalytic behavior for their better performance was discussed in detail with the help of various structural and electrochemical techniques. The OHSNC was characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM). The results showed that the improved performance owed to the enhancement of both kinetics activity and the number of electron transfer in the ORR, and the internal resistance was largely reduced. Therefore, OHSNC was proved to be an excellent cathodic catalyst in AC air cathode MFC.
authors.affiliation: The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China.
authors.forename: Baochao
authors.initials: B
authors.lastname: Ge
authors.affiliation: The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China. Electronic address: likx@nankai.edu.cn.
authors.forename: Kexun
authors.initials: K
authors.lastname: Li
authors.affiliation: The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Fu
authors.affiliation: The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China.
authors.forename: Liangtao
authors.initials: L
authors.lastname: Pu
authors.affiliation: The College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin 300071, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000388:Air; D000537:Aluminum Oxide / Q000737:chemistry*; D001674:Bioelectric Energy Sources; D002384:Catalysis; D002606:Charcoal / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D004560:Electricity; D055664:Electrochemical Techniques; D004566:Electrodes; D007700:Kinetics; D008277:Magnesium Oxide / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry
chemical_list: D010087:Oxides; C111130:spinell; D002606:Charcoal; D008277:Magnesium Oxide; D003035:Cobalt; D000537:Aluminum Oxide; D009584:Nitrogen; D010100:Oxygen; C060728:cobalt oxide
keywords: Catalytic kinetics; Microbial fuel cell; Nano spinel Co(3)O(4); Oxygen reduction reaction