Development of low cost ceramic separator using mineral cation exchanger to enhance performance of microbial fuel cells

Ghadge, Anil N.; Ghangrekar, Makarand M.

doi:10.1016/j.electacta.2015.03.105

Cited by 154 publications

(52 citation statements)

References 29 publications

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“…Clayware ceramic membranes have also shown high cation exchange capacity and low oxygen and substrate diffusivity. Modifying the separators using mineral cation exchangers like kaolinite or montmorillonite improved their performance further, because of an increase in the concentration of silica and alumina which after reacting with oxygen provides negative centers to bind the cations [19]. Tamakloe et al [20] reported higher electricity generation in air cathode MFCs employing ceramic separators than aqueous cathode MFCs.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of microbial fuel cells employing ceramic separator of different surface area modified with mineral cation exchanger

Bagchi

Behera

2020

SN Appl. Sci.

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Microbial fuel cell (MFC), one of the emerging topics of research, suffers from two chief limitations, low power generation and high cost of reactor materials. These problems limit its possibility of field scale implementation and commercialization. Hence, an attempt has been made in this study to highlight the utilization of lost cost ceramic material modified with mineral cation exchanger with various concentrations (10-50%) as separator along with studying the role of thickness and surface area in improving the overall performance of an MFC. The performance of the membranes with different thickness and kaolin concentrations was studied based on their proton exchange, ion transfer and oxygen diffusion capabilities. While, proton transfer coefficient was found to be highest in membrane of thickness 4 mm containing 30% kaolin, oxygen transfer coefficient was found to be lowest in the membrane of thickness 6 mm containing 50% kaolin. Thus, MFCs of optimised parameters with concentric anode chamber made with ceramic material were used to study the effect of membrane surface area on their performances. MFC with the highest membrane surface area showed highest power density, highest organics removal efficiency and least internal resistance. Thus, it was concluded from the results that high membrane surface area increases the performance efficiency of the MFCs by maintaining proper proton concentration on both side of the membranes. The results thus highlight the importance of a membrane in an MFC and how the presence of a cation exchanger can enhance the electricity generation.

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Section: Introductionmentioning

confidence: 99%

Performance evaluation of microbial fuel cells employing ceramic separator of different surface area modified with mineral cation exchanger

Bagchi

Behera

2020

SN Appl. Sci.

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“…[12] Recently,G hadgea nd Ghangrekar showedt hat the performance of ceramic membranes can be increased by 48 % with the addition of acation exchanger. [13] Although terracotta is anotherexample of aceramic material that has been applieds uccessfully, [14] little effort has been exerted to compare the performance of different ceramic materials in MFCs. Winfield et al [15] comparede arthenware and terracotta and employed these materials in both cylindrical as well as conventional air-cathode MFCs.W hen these cylindrical MFCs (volume of 40 mL) weretested, the earthenware generated a7 5% higher powert han the terracotta units.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Study on Ceramic Membranes for Low‐Cost Microbial Fuel Cells

2015

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Microbial fuel cells (MFCs) made with different types of ceramic membranes were investigated to find a low‐cost alternative to commercially available proton exchange membranes. The MFCs operated with fresh human urine as the fuel. Pyrophyllite and earthenware produced the best performance to reach power densities of 6.93 and 6.85 W m−3, respectively, whereas mullite and alumina achieved power densities of 4.98 and 2.60 W m−3, respectively. The results indicate the dependence of bio‐film growth and activity on the type of ceramic membrane applied. The most favourable conditions were created in earthenware MFCs. The performance of the ceramic membranes was related to their physical and chemical properties determined by environmental scanning electron microscopy and energy dispersive X‐ray spectroscopy. The cost of mullite, earthenware, pyrophyllite and alumina was estimated to be 13.61, 4.14, 387.96 and 177.03 GBP m−2, respectively. The results indicate that earthenware and mullite are good substitutes for commercially available proton exchange membranes, which makes the MFC technology accessible in developing countries.

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“…The isomorphous substitution (e.g., of Al 3+ by Mg 2+ or Fe 2+ in octahedral sheet) causes negative charge on Mt layers, which is balanced by exchangeable cations within the interlayer space (Bergaya and Lagaly, 2013). With unique two-dimensional structure, high cation exchange capacity, and large specific surface area, Mt has been widely applied in a variety of areas, including environmental remediation (e.g., adsorbents and catalyst supports) (Barama et al, 2009;Gates et al, 2009;Zhu et al, 2016), materials science (e.g., ceramic and fillings) (Qin et al, 2005;Ghadge and Ghangrekar, 2015), biomedicine (e.g., drug carriers) (Feng et al, 2009), etc.…”

Section: Introductionmentioning

confidence: 99%

Influence of interlayer species on the thermal characteristics of montmorillonite

Chen

Zhu

et al. 2017

Applied Clay Science

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Development of low cost ceramic separator using mineral cation exchanger to enhance performance of microbial fuel cells

Cited by 154 publications

References 29 publications

Performance evaluation of microbial fuel cells employing ceramic separator of different surface area modified with mineral cation exchanger

Performance evaluation of microbial fuel cells employing ceramic separator of different surface area modified with mineral cation exchanger

Comprehensive Study on Ceramic Membranes for Low‐Cost Microbial Fuel Cells

Influence of interlayer species on the thermal characteristics of montmorillonite

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