Enhanced supercapacitor performance using molecular self-assembling polyaniline onto carbon nanoparticles
| Autor: | Tzong-Liu Wang, Mei-Hwa Lee, Po-Hsin Wang, Hung-Yin Lin, Chien-Hsin Yang, Wen-Churng Lin |
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| Rok vydání: | 2018 |
| Předmět: |
Supercapacitor
General Chemical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance 0104 chemical sciences Analytical Chemistry Dielectric spectroscopy chemistry.chemical_compound Aniline Monomer chemistry Chemical engineering Polyaniline Electrochemistry Cyclic voltammetry 0210 nano-technology Current density |
| Zdroj: | Journal of Electroanalytical Chemistry. 810:145-153 |
| ISSN: | 1572-6657 |
| DOI: | 10.1016/j.jelechem.2017.12.067 |
| Popis: | This work studied the effect of self-doped polyaniline (SPANI)-assembled carbon nanoparticles (CNPs) on a supercapacitor. SPANI was in situ polymerised and assembled on CBs by mixing the monomers o-aminobenzenesulphonic acid (SAN) and aniline (AN) with an initiator and CNPs. SAN acted as a self-doped monomer and a surfactant. SPANI-modified CNPs used as an electrode material would improve the performance of CB-based supercapacitor. Variation of the molar ratio of AN/SAN altered the performance of the SPANI–CNP-based supercapacitor. Cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy were employed to investigate the properties of the supercapacitors. The SPANI–CNP-based supercapacitor attained optimal performance at an AN/SAN ratio of 1.0, exhibiting a specific capacitance of 342 Fg− 1 at a charging current density of 0.5 Ag− 1 in a symmetric cell. |
| Databáze: | OpenAIRE |
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