Application of Low-Cost Cu-Sn Bimetal Alloy as Oxygen Reduction Reaction Catalyst for Improving Performance of the Microbial Fuel Cell

Md T. Noori, Gaurav Dhar Bhowmick, Bikash R. Tiwari, M. M. Ghangrekar, C. K. Mukhrejee

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

In this experiment, a new bimetal low-cost Cu-Sn alloy was synthesized and it was tested as catalyst for oxygen reduction reaction (ORR) in MFC and the results were compared with the commercially available Pt-C catalyst. Cyclic voltammetry for evaluating ORR of the test cathode containing Cu-Sn catalysts under oxygen saturated environment displayed large ORR current peak, showing less overpotential demand for ORR. Maximum power density of 457 mW/m2 obtained from MFC using Cu-Sn catalyst, was found to be slightly higher than the power density of 446 mW/m2 demonstrated by MFC using Pt based cathode. Biochemical conversion of organic matter to direct electric current in Cu-Sn based MFC occurred at a coulombic efficiency of 55.8%, while demonstrating 92% of chemical oxygen demand removal. This study demonstrated application of low cost Cu-Sn bimetal alloy as excellent ORR catalyst in MFC and would be very helpful to commission larger MFCs for field applications to harvest energy in the form of direct electricity from wastewaters while offering wastewater treatment.

Original languageEnglish
Pages (from-to)663-668
Number of pages6
JournalMRS Advances
Volume3
Issue number13
DOIs
StatePublished - 1 Jan 2018
Externally publishedYes

Keywords

  • Catalytic
  • scanning electron microscopy (SEM)
  • x-ray diffraction (XRD)

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science (all)
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Application of Low-Cost Cu-Sn Bimetal Alloy as Oxygen Reduction Reaction Catalyst for Improving Performance of the Microbial Fuel Cell'. Together they form a unique fingerprint.

Cite this