A novel structure of scalable air-cathode without Nafion and Pt by rolling activated carbon and PTFE as catalyst layer in microbial fuel cells

Dong, Heng; H, Yu; Wang, Xin; Zhou, Qixing; Feng, Junli

doi:10.1016/j.watres.2012.08.005

Cited by 391 publications

(194 citation statements)

References 47 publications

(59 reference statements)

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“…A lower value of the average standard deviation is found for the electrode with a higher percentage of PTFE, suggesting that sufficient binder is applied in preparing the PSAC-PTFE composite electrode. An about similar finding was reported by Dong, et al [14], where, when the ratio of PTFE to activated carbon was less than a certain amount, the paste cannot be firmly bound. For this reason, in their study, the ratio of activated carbon/PTFE was varied between 3 and 11.…”

Section: Electrochemical Active Surface Areasupporting

confidence: 86%

“…Fluorinecontaining resin materials such as polytetrafluoroethylene (PTFE) are widely used as a binder, as they have excellent chemical and thermal resistance and are best known for their binding properties. PTFE is widely used as a binder for the fabrication of cathode for energy storage, particularly in microbial fuel cell [13][14][15][16] and capacitor/supercapacitor [17,18]. On one hand, Zarei, et al [19] developed carbon nanotube-PTFE cathode for dye removal under several different operating conditions, while on the other hand, Park, et al [20] prepared activated carbon-PTFE electrode sheet for desalination.…”

Section: Introductionmentioning

confidence: 99%

“…On one hand, Zarei, et al [19] developed carbon nanotube-PTFE cathode for dye removal under several different operating conditions, while on the other hand, Park, et al [20] prepared activated carbon-PTFE electrode sheet for desalination. PTFE as a binder was reported to provide high reproducible performance of electrode at low cost as compared to Nafion [14]. Nafion is commonly used as binder in preparing the electrode by brushing method.…”

Section: Introductionmentioning

confidence: 99%

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Effect of varying the amount of binder on the electrochemical characteristics of palm shell activated carbon

Maarof

Daud

Aroua

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Section: Electrochemical Active Surface Areasupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of varying the amount of binder on the electrochemical characteristics of palm shell activated carbon

Maarof

Daud

Aroua

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…8,9 Cathodes made by pressing AC onto metal stainless steel (SS) mesh resulted in performance comparable to Pt cathodes with carbon cloth as current collector, at a much reduced overall cost. 8,10 To improve the performance of AC cathodes, Wei et al optimized oxygen reduction kinetics by varying AC loadings.…”

Section: ■ Introductionmentioning

confidence: 99%

Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells

Xia

Zhang

et al. 2013

ACS Appl. Mater. Interfaces

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Activated carbon (AC) is a cost-effective catalyst for the oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). To enhance the catalytic activity of AC cathodes, AC powders were pyrolyzed with iron ethylenediaminetetraacetic acid (FeEDTA) at a weight ratio of FeEDTA:AC = 0.2:1. MFCs with FeEDTA modified AC cathodes and a stainless steel mesh current collector produced a maximum power density of 1580 ± 80 mW/m 2 , which was 10% higher than that of plain AC cathodes (1440 ± 60 mW/m 2 ) and comparable to Pt cathodes (1550 ± 10 mW/m 2 ). Further increases in the ratio of FeEDTA:AC resulted in a decrease in performance. The durability of AC-based cathodes was much better than Pt-catalyzed cathodes. After 4.5 months of operation, the maximum power density of Pt cathode MFCs was 50% lower than MFCs with the AC cathodes. Pyridinic nitrogen, quaternary nitrogen and iron species likely contributed to the increased activity of FeEDTA modified AC. These results show that pyrolyzing AC with FeEDTA is a cost-effective and durable way to increase the catalytic activity of AC.

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“…In some of these studies, AC was used as cathode material in a composite mixture especially with Polytetrafluoroethylene (PTFE) [13,14,16], which did not explore its potential as a standalone cathode material. These studies were conducted using commercial AC material produced from coal, coconut shell and wood.…”

Section: Introductionmentioning

confidence: 99%

A Viable Electrode Material for Use in Microbial Fuel Cells for Tropical Regions

et al. 2016

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Electrode materials are critical for microbial fuel cells (MFC) since they influence the construction and operational costs. This study introduces a simple and efficient electrode material in the form of palm kernel shell activated carbon (AC) obtained in tropical regions. The novel introduction of this material is also targeted at introducing an inexpensive and durable electrode material, which can be produced in rural communities to improve the viability of MFCs. The maximum voltage and power density obtained (under 1000 Ω load) using an H-shaped MFC with AC as both anode and cathode electrode material was 0.66 V and 1.74 W/m 3 , respectively. The power generated by AC was as high as 86% of the value obtained with the extensively used carbon paper. Scanning electron microscopy and Denaturing Gradient Gel Electrophoresis (DGGE) analysis of AC anode biofilms confirmed that electrogenic bacteria were present on the electrode surface for substrate oxidation and the formation of nanowires.

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A novel structure of scalable air-cathode without Nafion and Pt by rolling activated carbon and PTFE as catalyst layer in microbial fuel cells

Cited by 391 publications

References 47 publications

Effect of varying the amount of binder on the electrochemical characteristics of palm shell activated carbon

Effect of varying the amount of binder on the electrochemical characteristics of palm shell activated carbon

Use of Pyrolyzed Iron Ethylenediaminetetraacetic Acid Modified Activated Carbon as Air–Cathode Catalyst in Microbial Fuel Cells

A Viable Electrode Material for Use in Microbial Fuel Cells for Tropical Regions

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