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The study investigates the effect of carbon nanoparticles synthesized by pulsed laser ablation on microbial fuel cell performance, finding that nanoparticles can act as salt bridge catalysts to improve power output. The nanoparticles were synthesized using a Q-switched Nd: YAG laser with varying pulse energies. The results show that higher pulse energy produces smaller particle sizes, leading to improved MFC performance.

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What they did

System
MFC

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Abstract

Abstract Pulsed laser ablation in liquid (PLAL) is one of the main techniques for synthesizing nanoparticle materials. The carbon target was dissolved in ultrapure water (UPW) and exposed to a Q-switched Nd: YAG laser (1064 nm) with a 6 ns pulse duration to produce carbon nanoparticles. In this sequence, the Nd: YAG laser beam was focused on the carbon surface. In the investigation of nanoparticles prepared by laser irradiation, the effect of different incident laser pulse energies (500, 1000 mJ) on particle sizes (52.09, 26.49 nm) was observed by atomic force microscopy (AFM), pH test, and lightning energy conductivity (EC) test of nanosolution was used to characterize the nanoparticles. Particle size was generated using (1000 mJ) laser pulse energy. The performance of the H-shaped microbial fuel cell (MFC) was also tested, using nanocolloids in a salt bridge. This work shows that (Co) NPs synthesized with an energy of (1000 mJ) pulsed laser can act as salt bridge catalysts to improve MFC power output.

Key findings

  • Carbon nanoparticles synthesized with 1000 mJ pulse energy have a smaller particle size (26.49 nm) compared to those synthesized with 500 mJ pulse energy (52.09 nm)
  • The use of carbon nanoparticles as salt bridge catalysts improves the power output of the microbial fuel cell
  • The particle size of the nanoparticles affects the performance of the microbial fuel cell, with smaller particles leading to better performance

Keywords

Laser ablationAblationIndustrial chemistryCarbon fibersNanoparticleLaser

Identifiers

DOI
10.2478/pjct-2025-0005
Journal
Polish Journal of Chemical Technology
Year
2025