Cyclic voltammetry studies of bioanode microbial fuel fells from batch culture of Geobacter sulfurreducens
N F Shoparwe, M M Z Makhtar, S A Sata, W S Kew +2
AI summary
70% confidenceThis study investigates the performance of Geobacter sulfurreducens in generating electrical current via cyclic voltammetry, with results showing high bioelectrocatalytic activity of the anode.
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Representative dual-chamber H-cell — matched on the paper’s reported configuration, not its exact geometry.
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Open in lab →What they did
- Substrate
- pure compound
- Inoculum
- G. sulfurreducens strain PCA
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Abstract
Abstract The present study aims to investigate the performance of batch culture of Geobacter sulfurreducens (G. sulfurreducens ) for electrical current generation via cyclic voltammetry (CV) method. The CV study was performed with an applied voltage in the range of -0.1 to 0.1 V against the standard calomel electrode (SCE) during the cell growth and attachment of G. sulfurreducens on graphite felt and initial acetate concentration of 20 mM. The kinetics of electrode reaction was investigated by conducting CV experiments at different scanning rates of 5, 10, 20, 50 and 100 mVs -1 . The diffusion coefficients (D) and heterogeneous electron transfer rate constant (k o ) of both anodic and cathodic process were 1.04×10 -5 cm 2 ·s -1 , 1.73×10 -6 cm 2 .s -1 , 0.0004 cm.s -1 and 0.0011 cm.s -1 , respectively. The obtained results showed that the anode exhibits high bioeletrocatalytic activity due to the attachment of G. sulfurreducens on the anode surface.
Key findings
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Keywords
Identifiers
- Journal
- IOP Conference Series: Earth and Environmental Science
- Year
- 2021