Bioenergy generation and wastewater treatment with nickel pyrophosphate as a novel cathode catalyst in single-chamber microbial fuel cells

Hamza Kharti, Noureddine Touach, El Mostapha Lotfi, Mohammed El Mahi, Latifa Mouhir, Mohammed Fekhaoui and Abdellah Benzaouak

Renewable Energy, 2024, vol. 231, issue C

Abstract: Microbial fuel cells (MFCs) offer an attractive solution for wastewater treatment integrated with sustainable energy generation. This study assesses nickel pyrophosphate (Ni2P2O7) as a novel cathode catalyst for oxygen reduction in single-chamber MFCs. Ni2P2O7 was synthesized via hydrothermal methods and thermally treated, with its structure and morphology confirmed by XRD, SEM, FTIR, and TGA analyses. The Ni2P2O7-based MFCs achieved a peak power density of 499 mW/m³ and a chemical oxygen demand (COD) removal efficiency of 60 %. These findings, combined with the low cost of Ni2P2O7, suggest its potential as an effective and economical alternative to noble metal catalysts, encouraging further optimization for industrial applications.

Keywords: Microbial fuel cell; Wastewater treatment; Energy production; Nickel pyrophosphate (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:231:y:2024:i:c:s0960148124010796

DOI: 10.1016/j.renene.2024.121011

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