There is a growing interest in the application of supercapacitors energy storage systems due to their high specific power, fast charge/discharge rates and long cycle stability. Researchers have focused recently on developing nanomaterials enhance capacitive performance supercapacitors. Particularly, utilisation fibres as templates has led theoretical practical advantages owing enlarged surface area, which allows electrolyte-ion diffusion. In addition, inclusion redox-active components, such...

Abstract A novel layer-by-layer (LBL) based electrode material for supercapacitor consists of polypyrrole/graphene oxide and polypyrrole/manganese (PPy/GO|PPy/MnO 2 ) has prepared by electrochemical deposition. The formation LBL assembled nanocomposite is confirmed Fourier transform infrared spectroscopy, Raman spectroscopy X-ray diffraction. field emission scanning electron microscopy images clearly showed that PPy/MnO was uniformly coated on PPy/GO. PPy/GO|PPy/MnO symmetrical revealed...

Development of well-designed electrodes is the key to achieve high performance supercapacitors. Therefore, as one effective methods, a layer-by-layer (LBL) approach often fruitfully employed for fabrication electrode material. Benefiting from tunable parameter LBL approach, this has paved way design highly ordered nanostructured material with excellent performance. Conducting polymers (CPs) are frontrunners in supercapacitors and notably, assembly CPs attracting extensive attention. critical...

A facile and novel electrode material of nickel-cobalt layered double hydroxides (Ni-Co LDHs) on polypyrrole/reduced graphene oxide (PPy/rGO) is fabricated for a symmetrical supercapacitor via chemical polymerization, hydrothermal vacuum filtration. This conscientiously composition free from any binder or surfactants which highly favorable supercapacitors. The PPy/rGO serves as an ideal backbone Ni-Co LDHs to form free-standing high-performance enhanced the overall structural stability film....

Abstract Asymmetric supercapacitors (ASC) have shown a great potential candidate for high-performance supercapacitor due to their wide operating which can remarkably enhance the capacitive behaviour. In present work, novel positive electrode derived from functionalised carbon nanofibers/poly(3,4-ethylenedioxythiophene)/manganese oxide ( f -CNFs/PEDOT/MnO 2 ) was prepared using multi-step route and activated (AC) fabricated as negative ASC. A uniform distribution of PEDOT MnO on -CNFs well...

Poly(3,4-ethylenedioxyhiophene) (PEDOT), polyaniline (PANI), and polypyrrole (PPy) were prepared on indium tin oxide (ITO) substrate via potentiostatic from aqueous solutions containing monomer lithium perchlorate. The concentration of monomers was varied between 1 10 mM. effects the polymers formation investigated compared by using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), cyclic voltammetry (CV), electrochemical impedance (EIS)...

The exceptional characteristics and uniqueness of two-dimensional nickel-cobalt layered double hydroxides (Ni-Co LDHs) make them highly desirable material for supercapacitors. A combination Ni-Co LDHs with carbon-based materials has given stupendous improvement to the performance supercapacitors in terms specific energy, capacitance, power. Herein, a comprehensive insight into recent progress LDHs/carbon composites is provided readers. Beginning description on classification detailed...

A comparative study of multiwalled carbon nanotube (MWCNT), graphene oxide (GO), and nanocrystalline cellulose (NCC) as a dopant in the preparation poly(3,4-ethylenedioxythiophene)- (PEDOT-) based hybrid nanocomposites was presented here. The were prepared via electrochemical method aqueous solution. FTIR Raman spectra confirmed successful incorporation dopants (MWCNT, GO, NCC) into PEDOT matrix process formation nanocomposites. It observed that choice material affected morphologies...

In this study, poly (3, 4-ethylenedioxythiophene)(PEDOT) and polyaniline (PANI) based copolymer was synthesized by electrochemical oxidative polymerization using chronoamperometry technique. A new approach used to perform the copolymerization process. The film prepared at a potential obtained from intercept point in LSV of both monomers. electrodeposition performed solution containing 10 mM concentrations each monomer 0.1 M lithium perchlorate (LiClO4). resulting conducting polymer films...

Abstract A cauliflower‐like ternary nanocomposite of poly(3,4‐ethylenedioxythipohene)/nanocrystalline cellulose/manganese oxide (PEDOT/NCC/MnO 2 ) was synthesized using one‐step electropolymerization technique. The effect manganese (Mn) concentration on the supercapacitive performance investigated. structural and morphology studies were conducted field emission scanning electron microscope, Fourier transform infrared spectroscopy, Raman X‐ray diffraction. at an optimized Mn resembles...