scholarly journals Bioelectricity production of PMFC using Lobelia Queen Cardinalis in individual and shared soil configurations

2022 ◽  
Vol 334 ◽  
pp. 08001
Author(s):  
Grégory Bataillou ◽  
Naoufel Haddour ◽  
Christian Vollaire
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Open Circuit Potential ◽  
Steel Wire ◽  
Internal Resistance ◽  
Open Circuit ◽  
In Series ◽  
The Mean ◽  
Plant Microbial Fuel Cell ◽  
The Impact

Plant Microbial Fuel Cell (PMFC) creates electricity from oxidation of root exudates by microbia anaerobic digestion, and reduction of dioxygen to water. In this study, Lobelia Queen Cardinalis was used as a plant model to investigate the impact of ionic connection between stacked Plant microbial fuel cell (shared soil). 10mm thickness carbon felt woven with stainless steel wire was used for both anode and cathode, and soil was a mix of potting soil and ground from pond banks (30\%-70\% weight, respectively). Independent performances did not show any difference between individual and shared soil PMFCs. Stacking independent PMFC in series sums both open circuit potential (OCP) and internal resistance, while stacking in parallel sums current, keeping open circuit potential to the mean of the OCPs. Although series stacking seems to output best performances, this configuration may cause voltage reversal in one PMFC when current is strong, leading to biofilm damage, so stacking in parallel is recommended.

Characterization of the internal resistance of a plant microbial fuel cell

2012 ◽  
Vol 72 ◽  
pp. 165-171 ◽  
Author(s):  
Ruud A. Timmers ◽  
David P.B.T.B. Strik ◽  
Hubertus V.M. Hamelers ◽  
Cees J.N. Buisman
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Internal Resistance ◽  
Plant Microbial Fuel Cell

Characterization of a Microfluidic Based Direct-Methanol Fuel Cell

2008 ◽  
Author(s):  
Isaac B. Sprague ◽  
Prashanta Dutta ◽  
Su Ha
Keyword(s):  
Sulfuric Acid ◽  
Fuel Cell ◽  
Soft Lithography ◽  
Open Circuit Potential ◽  
Internal Resistance ◽  
Open Circuit ◽  
Operating Conditions ◽  
Methanol Concentration ◽  
Dimethyl Siloxane ◽  
Direct Methanol

The performance of a membraneless laminar flow micro fuel cell was evaluated under different operating conditions. The fuel cell was microfabricated in poly-dimethyl-siloxane using standard soft-lithography techniques. It used methanol solution as the fuel for the anode side, and oxygen saturated sulfuric acid for the cathode. The parameters studied were the methanol concentration and the concentration of sulfuric acid in the anode stream. The performance was characterized by V-I plots, stability of open circuit potential, and anode polarization curves. Our results show that the power output of the device decreases with increase in the methanol concentration. It is shown that these trends are caused by the cell’s internal resistance to proton transport. The addition of sulfuric acid to the fuel significantly decreases this resistance. The device open circuit potential was not stable over extended operation, and could drop by more than 150 mV in 72 hours.

scholarly journals Impact of anodophilic biofilm bioelectroactivity on denitrification behavior of single-chamber air-cathode microbial fuel cell in steady state

2021 ◽  
Author(s):  
Wenjuan Zhao ◽  
YiZhao Gao ◽  
Yongli Zhao ◽  
Xiaoya Deng ◽  
Jun Shao ◽  
...  
Keyword(s):  
Power Generation ◽  
Steady State ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
High Power ◽  
Open Circuit ◽  
Current Response ◽  
Air Cathode ◽  
Single Chamber ◽  
The Impact

Generally, high bioelectroactivity of anodophilic biofilm favors high power generation of microbial fuel cell (MFC), however, it is not clear whether it can promote denitrification of MFC synchronously. In this study, the impact of anodophilic biofilms bioelectroactivity on denitrification behavior of single-chamber air-cathode MFC (SAMFC) in steady state was studied for the first time. Anodophilic biofilms of various bioelectroactivity were acclimated at conditions of open circuit (OC), Rext of 1000Ω and 20Ω (denoted as SAMFC-OC, SAMFC-1000Ω and SAMFC-20Ω, respectively) and run for 100 days in the presence of nitrate. Electrochemical tests and microbial analysis results showed that the anode of the SAMFC-20Ω delivered higher oxidation and denitrification current response and had a higher abundance of electroactive bacteria, like Geobacter, Pseudomonas and Comamonas, which possessed bidirectional electron transfer function, demonstrating a higher bioelectroactivity of the anodophilic biofilm. Moreover, these electroactive bacteria favored the accumulation of denitrifers, like Thauera and Alicycliphilus, probably by consuming trace oxygen through catalyzing oxygen reduction. The SAMFC-20Ω not only delivered a 61.7% higher power than the SAMFC-1000Ω, but also achieved a stable and high denitrification rate constant (kDN) of 1.9, which was 50% and 40% higher than that of the SAMFC-OC and SAMFC-1000Ω, respectively. It could be concluded that the high bioelectroactivity of the anodophilic biofilms not only favored high power generation of the SAMFC, but also promote the growth of denitrifers at the anodes and strengthened denitrification. This study provided an effective method and important theoretical basis for enhancing power generation and denitrification performance of the SAMFC synchronously.

scholarly journals Decolorization of Congo red in Microbial Fuel Cell

2021 ◽  
Author(s):  
K Priyanka ◽  
A.merline sheela ◽  
ILAMATHI R
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Glucose Concentration ◽  
Congo Red ◽  
Biofilm Formation ◽  
Open Circuit Potential ◽  
Sem Analysis ◽  
Open Circuit ◽  
Ftir Analysis ◽  
Selection Of

Abstract In this research, three individual conditions (static, shaking and MFC) were tested for Congo Red decolorization. P.aeruginosa MTCC 2582 has showed 96.1% decolourization under MFC condition with 85% COD reduction for the dye (100 µM). Microbial fuel cell of P.aeruginosa can discharge the dual duty of degrading the recalcitrant dye with power generation. To understand the influence the growth curve, different substrate concentration of glucose (0-20 g/L) were selected to improve the performance of MFC. Results show that a larger open circuit potential of 0.691 V and a maximum power density of 1.9 mW m-2 was possessed for the degradation of 100 µM of dye at 10 g/L of glucose concentration. Further, the selection of optimum concentration of dye (200 µM) increased the open circuit potential to 0.844 V. The degraded metabolites were confirmed using UV-Vis and FTIR analysis. Biofilm formation on anode at optimal glucose concentration was studied by using SEM analysis.

Plant-Microbial Fuel Cell Technology

2019 ◽  
pp. 549-564
Author(s):  
P. Chiranjeevi ◽  
Dileep Kumar Yeruva ◽  
A. Kiran Kumar ◽  
S. Venkata Mohan ◽  
Sunita Varjani
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Cell Technology ◽  
Fuel Cell Technology ◽  
Plant Microbial Fuel Cell

Effects of type of inoculum and architectural changes on internal resistance of a microbial fuel cell

2010 ◽  
Vol 150 ◽  
pp. 24-24
Author(s):  
A.L. Vázquez-Larios ◽  
F. Esparza-García ◽  
G. Vázquez-Huerta ◽  
O. Solorza-Feria ◽  
H.M. Poggi-Varaldo
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Internal Resistance

scholarly journals Electrical energy production from plant biomass: an analysis model development for Pandanus Amaryllifolius plant microbial fuel cell

2020 ◽  
Vol 18 (3) ◽  
pp. 1163
Author(s):  
Teng Howe Cheng ◽  
Kok Boon Ching ◽  
Chessda Uttraphan ◽  
Yee Mei Heong
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Plant Biomass ◽  
Coulombic Efficiency ◽  
Functional Model ◽  
Electrical Energy ◽  
Microbial Culture ◽  
Analysis Model ◽  
Plant Microbial Fuel Cell ◽  
Pandanus Amaryllifolius

Plant microbial fuel cell (P-MFC) is an electrochemical reactor that converts organic compounds to electrical energy through the catalytic reaction from electrochemically active bacteria (EAB). However, there is no sign of an attempt in developing the functional model in predicting the energy conversion and utilization of P-MFC. In this study, an analytic model is proposed to show the whole production process of the organic compound to electrical energy generation. <em>Pandanus Amaryllifolius</em> plant was used as sources of photosynthate, where biomass product from rhizodeposition, acetate was produced, and soil bacteria as the microbial culture, and air as the input to the cathode chamber. The proposed analytical model is able to predict the output of the P-MFC using the parameters from the experiment. The generated data from the model was then compared with the monitored data from the <em>Pandanus Amaryllifolius </em>P-MFC. The results show the electrical power output has a high similarity pattern with the bacterial growth curve model and able to achieve the coulombic efficiency of 95.32%.

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