Highly methanol resistant and selective ternary blend membrane composed of sulfonated <scp>PV</scp>d<scp>F</scp>‐<i>co</i>‐<scp>HFP</scp>, sulfonated polyaniline and nafion

Dutta, Kingshuk; Das, Suparna; Kundu, Patit Paban

doi:10.1002/app.43294

Cited by 27 publications

(10 citation statements)

References 51 publications

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“…They attributed it to high ionic or electronic CPs, another promising electrode material acknowledged as having high specific capacitance, perfect flexibility, good stability and ease of synthesis, show a fascinating prospect in supercapacitive (pseudocapacitive) electrodes. As mentioned above, PANI has more advantages over the other CPs like ease of synthesis, low cost monomer, high theoretical conductivity (3407 F g −1 ), a wide range of working potential window and good stability, therefore PANI is the most explored material that is used as pseudocapacitive electrodes among CPs [26][27][28][29]. In order to improve its properties, extensive efforts have been made, which are mainly associated with combining PANI with other materials (like carbon-based materials, TMOs).…”

Section: Pure Panimentioning

confidence: 99%

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Gong

2020

Materials

102

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Conducting polyaniline (PANI) with high conductivity, ease of synthesis, high flexibility, low cost, environmental friendliness and unique redox properties has been extensively applied in electrochemical energy storage and conversion technologies including supercapacitors, rechargeable batteries and fuel cells. Pure PANI exhibits inferior stability as supercapacitive electrode, and can not meet the ever-increasing demand for more stable molecular structure, higher power/energy density and more N-active sites. The combination of PANI and other active materials like carbon materials, metal compounds and other conducting polymers (CPs) can make up for these disadvantages as supercapacitive electrode. As for rechargeable batteries and fuel cells, recent research related to PANI mainly focus on PANI modified composite electrodes and supported composite electrocatalysts respectively. In various PANI based composite structures, PANI usually acts as a conductive layer and network, and the resultant PANI based composites with various unique structures have demonstrated superior electrochemical performance in supercapacitors, rechargeable batteries and fuel cells due to the synergistic effect. Additionally, PANI derived N-doped carbon materials also have been widely used as metal-free electrocatalysts for fuel cells, which is also involved in this review. In the end, we give a brief outline of future advances and research directions on PANI.

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Section: Pure Panimentioning

confidence: 99%

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Gong

2020

Materials

102

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“…These treated membranes were then cleaned with DI water in order to preserve their pH neutrality. The membranes were then dried naturally under ambient conditions for 24 h [37,38].…”

Section: Pre-treatment Of the Membrane And The Electrodesmentioning

confidence: 99%

Nanorods of cerium oxide as an improved electrocatalyst for enhanced oxygen reduction in single-chambered microbial biofuel cells

Das

Dutta

Enotiadis

et al. 2020

Mater. Res. Express

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This paper reports the synthesis and utilization of cerium oxide (CeO 2 ) nanorods as a cathode catalyst and a potential, low-cost replacement of platinum for microbial biofuel cells (MBFCs). The nanorod electrocatalyst had exhibited significant improvements over Pt nanoparticles in terms of forward and backward onset potentials and peak current densities, electronic conductivity, charge transfer resistance, stability in 0.1 M phosphate buffer solution, and cost. It had also demonstrated a more stable forward peak current density at the 100th steady cycle, as well as, higher current density values up to 7,200 s. In addition, the synthesized CeO 2 nanorods also produced ∼10 3 times higher exchange current density over the synthesized Pt nanoparticles. Furthermore, in a single-chamber MBFC, the CeO 2 nanorods exhibited higher open circuit voltage (+0.80 V after 14 days), and output current (3613 mAm −2 at +0.3 V) and power (1084 mWm −2 ) densities in comparison to Pt nanoparticles.

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“…However, CPs show short cycle life because of repetitive contraction and expansion of polymer chain during charging and discharging. Among all the CPs, PAni has been extensively investigated for its usage in energy storage devices . The extraordinary properties that help PAni to become unique are its high theoretical capacitance (3407 Fg −1 ), high hydrogen evolution overpotential, and wide range of working potential window.…”

Section: Introductionmentioning

confidence: 99%

An overview on the recent developments in polyaniline‐based supercapacitors

Banerjee

Dutta

Kader

et al. 2019

Polymers for Advanced Techs

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103

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With the ever-increasing depletion of nonrenewable fossil fuel reserve, greater attention has been directed towards renewable energy storage devices. One of the most important of such devices is the supercapacitor, which exhibits high specific capacitance. Polyaniline (PAni) is a versatile conducting polymer, which has demonstrated excellent electrochemical properties along with good stability and ease of synthesis.Therefore, PAni has been extensively used in the fabrication of supercapacitors. In the last few decades, researchers have studied the effect of morphology, developed during the synthesis of PAni, on its electrochemical properties. It is known that the electrical conductivity and the electrochemical properties of PAni get influenced by the level and type of dopant used, the method of synthesis adopted, and the surface area and porosity possessed. However, it has been realized that supercapacitors based on PAni suffer from short cycle life. This led to development of PAni composites with carbon-based materials and transition metal oxides. In this review, focus has been laid on the achieved performance levels of the recently developed PAni-based supercapacitors. In addition, an attempt has been made to study the fundamental aspects of the conductivity and the electrochemical properties of PAni and their effect on the supercapacitor performance. Moreover, several new interesting applications of PAni-based supercapacitors have also been included in this review.1 | INTRODUCTION Supercapacitors, for the last few decades, have accrued immense attention from the scientific society for their unique properties like long cycle life, wide operating temperature window, high power density, and fast charge-discharge cycle. 1,2 It can store charge in two different ways-either by electrostatic way (electrical double layer capacitors, EDLCs) or by thorough fast and reversible Faradaic reaction (pseudocapacitors). In case of EDLCs, the opposite charges are stored on the surface of the two parallel conductive plates with electrolytes between them that help in shuttling of ions between the two.EDLCs type of supercapacitors have shown higher power densities and hence higher rate capabilities. It has been studied that carbon-based materials have shown EDLC-type behavior with high power density, low cost, and tunable porosity but lacks in energy density. [3][4][5] Pseudocapacitors store charges through fast and reversible reaction, which can store charges near the surface of the electrode, and thus possess high capacitance but low power density. Transition metal oxides (TMOs), mixed TMOs, 6 and conducting polymers (CPs) exhibit pseudocapacitance. TMOs exhibit multiple oxidation states with low activation energy but lack high capacitance and flexibility and suffer from instability. In recent years, extensive studies have been done on TMOs and carbon-based materials. Another group of fascinating materials is CPs, which show high specific capacitance, flexibility, and ease of fabrication. The performance of the supercapacitor is...

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Highly methanol resistant and selective ternary blend membrane composed of sulfonated PVdF‐co‐HFP, sulfonated polyaniline and nafion

Cited by 27 publications

References 51 publications

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Research Progress on Applications of Polyaniline (PANI) for Electrochemical Energy Storage and Conversion

Nanorods of cerium oxide as an improved electrocatalyst for enhanced oxygen reduction in single-chambered microbial biofuel cells

An overview on the recent developments in polyaniline‐based supercapacitors

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