Novel synthetic approach for designing metal-free, redox-active quinoxaline-benzimidazole-based organic polymers with high energy storage capacity
Title | Novel synthetic approach for designing metal-free, redox-active quinoxaline-benzimidazole-based organic polymers with high energy storage capacity |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Salunkhe, PS, Patil, YS, Dhole, IA, Kalshetti, BS, Patil, VB, Mane, SR, Ghanwat, AA |
Journal | New Journal of Chemistry |
Volume | 44 |
Issue | 37 |
Pagination | 14806-14817 |
Date Published | OCT |
Type of Article | Article |
Abstract | New organic framework materials, namely, polyphenylquinoxaline (QOP) and polyphenylquinoxaline-benzimidazole (QOP-BOP) were designed using a high-temperature (>100 degrees C) polymerization reaction with different monomers, i.e., 2,5-bis-[(4-benzoylcarbonyl)phenyl]-3-4 diphenyl thiophene (BbcPDT), aromatic tetraamines and biphenyl dicarboxylic acid. The QOP-BOP copolymer exhibited specific capacitance (SC) of 305 F g(-1) at the current density of 2 A g(-1) and 88% retention of its initial specific capacitance after 1000 cycles, which resulted in good cyclic stability. This work establishes the first use of thiophene integrated with quinoxaline-benzimidazole units for energy storage applications and provides strategies for further developments in the performance of such conjugated materials. Cyclic voltammetry, charge-discharge and electrochemical impedance techniques were used to evaluate the electrochemical parameters, which demonstrated their potential in future energy storage devices. |
DOI | 10.1039/c9nj02877c |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 3.069 |
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