title: The development of catalytic performance by coating Pt-Ni on CMI7000 membrane as a cathode of a microbial fuel cell.
abstract: Performance of cathode materials in microbial fuel cell (MFC) from dairy wastewater has been investigated in laboratory tests. Both cyclic voltammogram experiments and MFC tests showed that Pt-Ni cathode much better than pure Pt cathode. MFC with platinum cathode had the maximum power density of 0.180 W m(-2) while MFC with Pt:Ni (1:1) cathode produced the maximum power density of 0.637 W m(-2), even if the mass mixing ratio of Pt is lower in the alloy were used. The highest chemical oxygen demand (COD) removal efficiency was around 82-86% in both systems. The cyclic voltammogram (CV) analyses show that Pt:Ni (1:1) offers higher specific surface area than Pt alone does. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) results showed that entire Pt:Ni (1:1) alloys can reduce the oxygen easily than pure platinum, even though less precious metal amount. The main outcome of this study is that Pt-Ni, may serve as a alternative catalyst in MFC applications.
authors.affiliation: Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey. Electronic address: afsincetinkaya@gmail.com.
authors.forename: Afsin Y
authors.initials: AY
authors.lastname: Cetinkaya
authors.affiliation: Yildiz Technical University, Department of Metallurgical and Material Engineering, Istanbul, Turkey.
authors.forename: Oguz Kaan
authors.initials: OK
authors.lastname: Ozdemir
authors.affiliation: Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey.
authors.forename: Emre Oguz
authors.initials: EO
authors.lastname: Koroglu
authors.affiliation: Nanotechnology Research Center, Gebze Institute of Technology, Istanbul, Turkey.
authors.forename: Aydin
authors.initials: A
authors.lastname: Hasimoglu
authors.affiliation: Yildiz Technical University, Department of Environmental Engineering, Istanbul, Turkey.
authors.forename: Bestami
authors.initials: B
authors.lastname: Ozkaya
mesh_terms: D001674:Bioelectric Energy Sources; D002384:Catalysis; D055664:Electrochemical Techniques; D004566:Electrodes; D008567:Membranes, Artificial; D009532:Nickel / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D010984:Platinum; D009532:Nickel
keywords: Catalyst; Cathode; Microbial fuel cell; Ni; Pt