Liu, Y;
Hu, X;
He, H;
Li, J;
Dong, H;
Shearing, PR;
He, G;
(2023)
Polyaniline–Cobalt Hexacyanoferrate Composites as High-Performance Cathodes for Zn-Ion Hybrid Supercapacitor.
Energy Technology
, Article 2201368. 10.1002/ente.202201368.
(In press).
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Energy Tech - 2023 - Liu - Polyaniline Cobalt Hexacyanoferrate Composites as High%E2%80%90Performance Cathodes for Zn%E2%80%90Ion Hybrid.pdf - Published Version Download (1MB) | Preview |
Abstract
Zn-based hybrid supercapacitors (ZHSCs) have received increasing attention in recent research, due to their high electrochemical performance and low cost. Herein, a composite cathode is developed based on polyaniline (PANI) and cobalt hexacyanoferrate (CoHCF), exhibiting excellent electrochemical performance. The results showed that PANI is coated on CoHCF, thereby enhancing the electrical conductivity and Zn2+ transport kinetics. As a result, the as-prepared materials demonstrate remarkable specific capacitance (741.7 F g−1 at 5 mV s−1), good cycling durability (86.15% capacitance retention over 5000 cycles at 10 A g−1), high peak energy density (312 Wh kg−1 at 500 W kg−1), and superior power density (75 294 W kg−1 at 25 Wh kg−1). The excellent electrochemical performance confirms that PANI–CoHCF composites are promising cathode candidates for ZHSCs in practical applications.
| Type: | Article |
|---|---|
| Title: | Polyaniline–Cobalt Hexacyanoferrate Composites as High-Performance Cathodes for Zn-Ion Hybrid Supercapacitor |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/ente.202201368 |
| Publisher version: | https://doi.org/10.1002/ente.202201368 |
| Language: | English |
| Additional information: | © 2023 The Authors. Energy Technology published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Cathode materials, composites, conductive polymers, Prussian blue analogues, Zn-ion hybrid supercapacitors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10166623 |
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