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Article

Physical, Chemical, and Electrochemical Properties of Redox-Responsive Polybenzopyrrole as Electrode Material for Faradaic Energy Storage

1
National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
2
Karlsruhe Institute of Technology (KIT), Institute for Applied Materials—Electrochemical Technologies (IAM-ET), 76131 Karlsruhe, Germany
3
Institute of Chemical Science, University of Peshawar, Peshawar 25120, Pakistan
*
Authors to whom correspondence should be addressed.
Academic Editor: Dong Jin Yoo
Polymers 2021, 13(17), 2883; https://doi.org/10.3390/polym13172883
Received: 25 June 2021 / Revised: 12 August 2021 / Accepted: 24 August 2021 / Published: 27 August 2021
Polybenzopyrrole (Pbp) is an emerging candidate for electrochemical energy conversion and storage. There is a need to develop synthesis strategies for this class of polymers that can help improve its overall properties and make it as suitable for energy storage applications as other well-studied polymers in this substance class, such as polyaniline and polypyrrole. In this study, by synthesizing Pbp in surfactant-supported acidic medium, we were able to show that the physicochemical and electrochemical properties of Pbp-based electrodes are strongly influenced by the respective polymerization conditions. Through appropriate optimization of various reaction parameters, a significant enhancement of the thermal stability (up to 549.9 °C) and the electrochemical properties could be achieved. A maximum specific capacitance of 166.0 ± 2.0 F g−1 with an excellent cycle stability of 87% after 5000 cycles at a current density of 1 A g−1 was achieved. In addition, a particularly high-power density of 2.75 kW kg−1 was obtained for this polybenzopyrrole, having a gravimetric energy density of 17 Wh kg−1. The results show that polybenzopyrroles are suitable candidates to compete with other conducting polymers as electrode materials for next-generation Faradaic supercapacitors. In addition, the results of the current study can also be easily applied to other systems and used for adaptations or new syntheses of advanced hybrid/composite Pbp-based electrode materials. View Full-Text
Keywords: polybenzopyrrole; conductive polymers; energy storage; thermal stability; polymer electrode material polybenzopyrrole; conductive polymers; energy storage; thermal stability; polymer electrode material
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MDPI and ACS Style

Begum, B.; Bilal, S.; Shah, A.u.H.A.; Röse, P. Physical, Chemical, and Electrochemical Properties of Redox-Responsive Polybenzopyrrole as Electrode Material for Faradaic Energy Storage. Polymers 2021, 13, 2883. https://doi.org/10.3390/polym13172883

AMA Style

Begum B, Bilal S, Shah AuHA, Röse P. Physical, Chemical, and Electrochemical Properties of Redox-Responsive Polybenzopyrrole as Electrode Material for Faradaic Energy Storage. Polymers. 2021; 13(17):2883. https://doi.org/10.3390/polym13172883

Chicago/Turabian Style

Begum, Bushra, Salma Bilal, Anwar u.H.A. Shah, and Philipp Röse. 2021. "Physical, Chemical, and Electrochemical Properties of Redox-Responsive Polybenzopyrrole as Electrode Material for Faradaic Energy Storage" Polymers 13, no. 17: 2883. https://doi.org/10.3390/polym13172883

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