The development of catalytic performance by coating Pt-Ni on CMI7000 membrane as a cathode of a microbial fuel cell

Cetinkaya A. Y., ÖZDEMİR O. K., KÖROĞLU E. O., Hasimoglu A., ÖZKAYA B.

BIORESOURCE TECHNOLOGY, vol.195, pp.188-193, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 195
  • Publication Date: 2015
  • Doi Number: 10.1016/j.biortech.2015.06.064
  • Journal Name: BIORESOURCE TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.188-193
  • Keywords: Microbial fuel cell, Catalyst, Cathode, Pt, Ni, DAIRY WASTE-WATER, ACTIVATED CARBON, AIR-CATHODE, OXYGEN REDUCTION, POWER-GENERATION, TEMPERATURE, EFFICIENCY, NAFION, BATCH, OXIDE
  • Yıldız Technical University Affiliated: Yes

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 Wm(-2) while MFC with Pt: Ni (1:1) cathode produced the maximum power density of 0.637 Wm(-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. (C) 2015 Elsevier Ltd. All rights reserved.