Functionalized poly(vinylidene fluoride-co-hexafluoro propylene) membrane for fuel cell

Prakash, Om; Jana, Karun Kumar; Jain, Rishabh; Shah, Prakash; Manohar, Murli; Shahi, Vinod K.; Maiti, Pralay

doi:10.1016/j.polymer.2018.07.086

Cited by 24 publications

(17 citation statements)

References 46 publications

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“…Sun is the largest carbon‐neutral energy resource which can be utilized. Solar cell devices based on inorganic semiconductors, though efficiently harvest solar energy, are not that much cost effective 12 . Among all alternative technologies, organic photovoltaic (OPV) cells have gained increasing attention as an inexpensive source of renewable energy owing to their unique advantages, which include high throughput, lightweight, mechanically flexible, 13,14 and large area production with low cost printing processes 2,10,15,16 .…”

Section: Introductionmentioning

confidence: 99%

Functionalized polythiophene for corrosion inhibition and photovoltaic application

Yadav

Prakash

Ray

et al. 2021

J of Applied Polymer Sci

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Conjugated polymers are encouraging substitute for creating clean and renewable energy for photoinduced charge generation and transport media in polymer solar cells (PSCs). Successful synthesis of a new solution processable n‐type polythiophene based π‐conjugated polymer (P3HT‐CN) is done where polythiophene units are substituted by cyano groups through post functionalization approach of synthesized P3HT which is cheap, stable, easily prepared, and inert against ambient conditions and is expected to be a competitive candidate for the acceptor material in non fullerene acceptors (NFAs) PSCs against fullerene derivative and used as the highly efficient active layer in the bulk heterojunction (BHJ) which increase the donor‐acceptor interfacial area through controlling the phase separation indicating device structure ITO/PEDOT:PSS/P3HT:P3HT‐CN/Al. Photovoltaic measurement of this PSCs device based on P3HT:P3HT‐CN demonstrate the PCE of 0.008% with an increased short circuit current density (Jsc) of 0.11 mA cm−2. The thermal, optical, and electrochemical properties are examined in detail showing high thermal stability, absorbance in the visible part of the solar spectrum, higher charge carrier mobility, and also mixed type corrosion inhibitive behavior with 90 and 78% inhibitor efficiency for P3HT and P3HT‐CN, respectively, built this class of material as smart which can be used for many other applications.

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Section: Introductionmentioning

confidence: 99%

Functionalized polythiophene for corrosion inhibition and photovoltaic application

Yadav

Prakash

Ray

et al. 2021

J of Applied Polymer Sci

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“…As a liquid fuel, ethanol provides simple stacking without any external huge fuel storage and refueling like hydrogen and presenting high energy density (8.00 kW h kg −1 ) compared with methanol (6.09 kW h kg −1 ). Moreover, DEFC has shown lower fuel crossover rate compared with direct methanol fuel cells (DMFCs) …”

Section: Introductionmentioning

confidence: 99%

Enhanced alkaline stability and performance of alkali‐doped quaternized poly(vinyl alcohol) membranes for passive direct ethanol fuel cell

2019

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Summary Direct ethanol fuel cells (DEFCs) emerge as the new research energy field since fast production of electricity, high efficiency conversion, and simple fabrication process. The production cost, conductivity properties, and ethanol permeability of membrane were the main problem that limited the DEFC performance and commercialization. In this study, a low cost, good ionic conductivity and low ethanol permeability of an anion exchange membrane based on incorporation KOH‐doped quaternized poly(vinyl alcohol) (QPVA) membrane (designed as QPVA/KOH) is synthesized and cross‐linked with glutaraldehyde solution. The membrane is expected to cut the production cost and enhance the performance. In this work, an optimum of alkali‐doped concentration has influence the membrane performance. The membrane has reveal high chemical stability even doped with 8‐M KOH solution in 100°C. The morphology of membranes remained unbreakable and achieved high range of ionic conductivity (~10−2 S cm−1). The membranes present maximum ionic conductivity 1.29 × 10−2 S cm−1 at 30°C and 3.07 × 10−2 S cm−1 at 70°C. The ethanol permeability of membrane is lower compared with the commercial membranes. Power density of alkaline DEFCs with platinum‐based catalyst by using cross‐linked QPVA/KOH membrane is 5.88 mW cm−2, which is higher than commercial membranes at 30°C temperature. At 70°C, power density has increased up to 11.28 mW cm−2 and significantly increased up to 22.82 mW cm−2 via the nonplatinum‐based catalyst. Moreover, according to the durability test, the performance of passive alkaline DEFC by using cross‐linked QPVA/KOH membrane has maintained at 36.2% level. With such efficiency, the stack current density has been able to stay above 120 mA cm−2 for over 1000 hours, at 70°C.

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“…The fuel production is also of low cost, and renewable fuel can be produced via agricultural bioprocesses production form the biomass product form farming, forestry, and community waste via the fermentation process. 7,8,[28][29][30][31][32][33][34] Munjewar et al 35 reviewed passive direct DMFCs application from the material development side. The sluggish reaction of fuel in anode electrode and fuel crossover have cause the reduction of fuel feeding efficiency and degraded the cathode electrode.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, this green technology is helpful for reducing air pollution due to the low emission of CO 2 gas. 3,[6][7][8] Passive direct alcohol fuel cells (DAFCs) use alcohol liquid fuels without involving a reforming system like hydrogen consumption, thus leading to a compact and small-scale structure. In addition, alcohols are easier to handle, transfer and store, and have a higher energy density.…”

Section: Introductionmentioning

confidence: 99%

“…The Nafion membrane modification with additive materials and the low-cost polymeric materials has improved its properties, such as fuel barrier properties, ionic conductivity, and production costs for DAFC applications. 7,8,[28][29][30][31][32][33][34] Munjewar et al 35 reviewed passive direct DMFCs application from the material development side. There is various modification of Nafion membrane, and alternative polymeric material has been applied in DMFCs such as poly (vinyl alcohol), polybenzimidazole and poly (ether ether ketone).…”

Section: Introductionmentioning

confidence: 99%

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The optimization performance of cross‐linked sodium alginate polymer electrolyte bio‐membranes in passive direct methanol/ethanol fuel cells

2019

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Summary Consumption of methanol and ethanol as a fuel in the passive direct fuel cells technologies is suitable and more useful for the portable application compared with hydrogen as a preliminary fuel due to the ease of management, including design of cell, transportation, and storage. However, the cost production of commercial membrane is still far from the acceptable commercialization stage. Based to our previous works, the low cost of cross‐linked sodium alginate (SA) polymer electrolyte bio‐membrane shown the virtuous chemical, mechanical, and thermal characterization as polymer electrolyte membrane in the direct methanol fuel cells (DMFCs). This study will further the investigation of cross‐linked SA polymer electrolyte bio‐membrane performance in the passive DMFCs and the passive direct ethanol fuel cells (DEFCs). The experimental study investigates the influence of the membrane thickness, loading of catalysts, temperature, type of fuel, and fuel concentration in order to achieve the optimal working operation performances. The passive DMFCs is improved from 1.45 up to 13.5 mW cm−2 for the maximum peak of power density, which is obtained by using 0.16 mm as an optimum thick of SA bio‐membrane that shown the highest selectivity 6.31 104 S s cm−3, 4 mg cm−2 of Pt‐Ru as an optimum of anode catalyst loading, 2 mg cm−2 of Pt at the cathode, 2M of methanol as an optimum fuel concentration, and an optimum temperature at 90°C. Under the same conditions of cells, the passive DEFCs are shown to be 10.2 mW cm−2 in the maximum peak of power density with 2M ethanol. Based on our knowledge, this is the first work that reports the optimization works of performance SA‐based membrane in the passive DMFCs via experimental studies of single cells and the primary performance of passive DEFCs using the SA‐based membrane as polymer electrolyte membrane.

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Functionalized poly(vinylidene fluoride-co-hexafluoro propylene) membrane for fuel cell

Cited by 24 publications

References 46 publications

Functionalized polythiophene for corrosion inhibition and photovoltaic application

Functionalized polythiophene for corrosion inhibition and photovoltaic application

Enhanced alkaline stability and performance of alkali‐doped quaternized poly(vinyl alcohol) membranes for passive direct ethanol fuel cell

The optimization performance of cross‐linked sodium alginate polymer electrolyte bio‐membranes in passive direct methanol/ethanol fuel cells

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