Polyaniline enfolded hybrid carbon array substrate electrode for high performance supercapacitors
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Preetam Bhardwaj
Abstract
Composites with thin layers of polyaniline (PANI) draped on the surface of a hybrid carbon (HC) array or assemblage were prepared by the oxidative polymerization route. The carbon array substrate is a consistent network architecture of carbon nanotubes and graphene, with the benefit of elevated conductivity and surface area of the carbon components. The exceptional improved electrochemical performances of PANI enfolded HC array electrodes are due to the synergistic effect of the pseudocapacitance of PANI and the electric double layer capacitance of the carbon array. The supercapacitive characteristics of composite materials were inspected by using cyclic voltammetry, the galvanostatic charge-discharge test and electrochemical impedance analysis. The 025PANI-HC composite sample revealed a maximum specific capacitance of 1397.82 F g−1 at a scan rate of 5 mV s−1 and 1430 F g−1 at 1 A g−1 from galvanostatic charge-discharge data, respectively, in 1 m H2SO4. The composites exhibited a much larger specific capacitance value than pristine PANI. Also, the 025PANI-HC electrode had an unwavering operation and its specific capacitance retention was 89%, even after 5000 charge-discharge cycles at 1 A g−1.
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Articles in the same Issue
- Frontmatter
- Material properties
- Sorption capacities of chitosan/polyethylene oxide (PEO) electrospun nanofibers used to remove ibuprofen in water
- Influence of epoxidized ethylene propylene diene rubber on nonisothermal crystallization kinetics and mechanical properties of poly(butylene terephthalate)/polypropylene blend
- Polyaniline enfolded hybrid carbon array substrate electrode for high performance supercapacitors
- Neighboring group effect on the thermal degradation of polyacrylamide and its derivatives
- Rheology of poly(lactic acid)/poly(trimethylene terephthalate) blends compatibilized by clay or maleic anhydride-grafted poly(ethylene-octene) elastomer
- Preparation and assembly
- Preparation of particulate polyvinylidene fluoride membranes of different particle sizes for membrane distillation applications
- Evaluation of internal morphology and engineering properties of graphite-filled UHMWPE nanocomposites produced using a novel octa-screw kneading extruder
- Development of NIPAAm-PEG acrylate polymeric nanoparticles for co-delivery of paclitaxel with ellagic acid for the treatment of breast cancer
- Engineering and processing
- Stereocomplex formation in injection-molded poly(L-lactic acid)/poly(D-lactic acid) blends
- Chaotic mixing analysis of a novel single-screw extruder with a perturbation baffle by the finite-time Lyapunov exponent method
- Influence of talc and rubber contents on surface replication of polypropylene injection molding application to automotive plastics
