Potential of porous Co3O4 nanorods as cathode catalyst for oxygen reduction reaction in microbial fuel cells

Kumar, Ravinder, Singh, Lakhveer, Zularisam, A.W., and Hai, I. Faisal (2016) Potential of porous Co3O4 nanorods as cathode catalyst for oxygen reduction reaction in microbial fuel cells. Bioresource Technology, 220. pp. 537-542.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: https://doi.org/10.1016/j.biortech.2016....
 
2


Abstract

This study aims to investigate the potential of porous Co3O4 nanorods as the cathode catalyst for oxygen reduction reaction (ORR) in aqueous air cathode microbial fuel cells (MFCs). The porous Co3O4 nanorods were synthesized by a facile and cost-effective hydrothermal method. Three different concentrations (0.5 mg/cm2, 1 mg/cm2, and 2 mg/cm2) of Co3O4 nanorods coated on graphite electrodes were used to test its performance in MFCs. The results showed that the addition of porous Co3O4 nanorods enhanced the electrocatalytic activity and ORR kinetics significantly and the overall resistance of the system was greatly reduced. Moreover, the MFC with a higher concentration of the catalyst achieved a maximum power density of 503 ± 16 mW/m2, which was approximately five times higher than the bare graphite electrode. The improved catalytic activity of the cathodes could be due to the porous properties of Co3O4 nanorods that provided the higher number of active sites for oxygen.

Item ID: 72643
Item Type: Article (Research - C1)
ISSN: 1873-2976
Copyright Information: © 2016 Elsevier Ltd. All rights reserved.
Date Deposited: 09 Jun 2022 01:31
FoR Codes: 40 ENGINEERING > 4004 Chemical engineering > 400404 Electrochemical energy storage and conversion @ 100%
SEO Codes: 17 ENERGY > 1705 Environmentally sustainable energy activities > 170599 Environmentally sustainable energy activities not elsewhere classified @ 100%
Downloads: Total: 2
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page