Improved cyclic retention and high‐performance supercapacitive behavior of poly(diphenylamine‐co‐aniline)/phosphotungstic acid nanohybrid electrode

Abstract

In this study, a simple and facile electrochemical deposition technique was employed to fabricate fluorine-doped tin oxide-based polydiphenylamine-polyaniline/phosphotungstic acid copolymer nanocomposite modified electrode (FTO/PDPA-PANI/PTA) for high-performance supercapacitors application.Crystalline and morphological structure and coating thickness of PDPA-PANI/ PTA nanocomposite on FTO were characterized using X-ray diffraction, scanning electron microscope, and atomic force microscope. The fabricated nanohybrid electrode exhibits superior specific capacitance of 360 Fg −1 at

Enhanced dielectric properties, thermal stability and ammonia sensing performance of poly(diphenylamine)/zinc oxide nanocomposites via one step polymerization

“…For PDPA, two distinct peaks are observed at 2θ values of 18.285 and 20.76 , which indicates PDPA is more crystalline than PANI. 8,35 However, in PDPA/ ZnO nanocomposites, characteristic peaks corresponding to PDPA become narrower with some additional peaks of ZnO nanoparticles at 2θ = 31.80, 34.55, 37.52, 47.38, 57.23, 63.38 and 68.28 . It is evident from the figure that PDPA/ZnO with a higher content of ZnO (15 wt%) shows an enhancement in signal intensity.…”

“…Among them, poly(diphenylamine) (PDPA), an N-substituted PANI derivative having intermediate properties of PANI and poly(phenylene) is gaining much attention among researchers. 8 PDPA exhibits much-pronounced electrochemical, redox and optical properties, thermal and environmental stability, and solubility with organic solvents. 9,10 Howbeit, the lower conductivity of PDPA can be improvised by the assimilation of inorganic nanomaterials into the polymer backbone.…”

Rare earth metal oxide‐doped reduced graphene‐oxide nanocomposite as binder‐free hybrid electrode material for supercapacitor application

“…Undoubtedly, altering the properties of electrode materials and electrolytes are the two possible design parameters that can be considered to obtain improved supercapacitors with high energy density utilized for various applications. [1][2][3][4][5][6][7][8] The super-capacitors store charge with two mechanisms: the first one is the occurrence of ion adsorption/desorption at the electrode/electrolyte interface termed electrochemical double-layer capacitor (EDLC), whereas the other is called pseudo capacitors where the charge storage occurs as a result of fastfaradaic charge transport reactions. 9,10 Recently, numerous researchers studied both types of capacitors employing many kinds of materials.…”

“…Today, almost all the energy industries show a keen interest in manufacturing portable type instruments/devices that operate with electricity require excellent charge storage capacity with desirable parameters such as size reduction, faster charging, and improved cyclic efficiency 1‐3 . All these properties are sufficiently found in the modern‐day supercapacitor storing a large measure of charge.…”

“…At present, many scientists are focusing their research on improving the energy density of supercapacitors without losing its inherent high‐power density has been a challenging task. Undoubtedly, altering the properties of electrode materials and electrolytes are the two possible design parameters that can be considered to obtain improved supercapacitors with high energy density utilized for various applications 1‐8 . The super‐capacitors store charge with two mechanisms: the first one is the occurrence of ion adsorption/desorption at the electrode/electrolyte interface termed electrochemical double‐layer capacitor (EDLC), whereas the other is called pseudo capacitors where the charge storage occurs as a result of fast‐faradaic charge transport reactions 9,10 …”