AI Article Synopsis
- Designing π-conjugated conductive polymers with redox-active groups can improve charge storage in aqueous energy devices.
- The electropolymerization of s-triazine on carbon cloth leads to a polytriazine-coated electrode that demonstrates strong charge storage capabilities, achieving specific capacities of 101.4 mAh g-1 in acidic solution and 50.3 mAh g-1 in zinc sulfate.
- A device using these electrodes shows impressive energy and power densities, and maintains 83.3% capacity after 2500 cycles, suggesting that polytriazine is a promising material for future energy storage applications.
Article Abstract
Designing novel π-conjugated conductive polymers with abundant redox-active groups is a viable route to achieve high charge storage performance for aqueous energy storage devices. Electropolymerization is a powerful tool to construct conductive polymers. Here, s-triazine is, for the first time, electropolymerized in an aqueous acidic solution on carbon cloth. The polytriazine-coated carbon cloth electrode (PT/CC) exhibits a granular structure, with abundant pores. The charge storage performance is investigated, and a specific capacity of 101.4 mAh g-1 at 1 A g-1 in 1 M H2SO4 is achieved. Additionally, in 1 M ZnSO, a specific capacity of 50.3 mAh g-1 at 1 A g-1 can be achieved by the PT/CC. The PT/CC behaves as a battery-type charge storage electrode, and the amino/imino and carbonyl/hydroxyl groups contribute to the charge storage, with cation insertion and extraction. A symmetric aqueous charge storage device assembled with two PT/CC electrodes exhibits an energy density of 12.92 Wh kg-1 and a power density of 250 W kg-1 at 1 A g-1. After 2500 cycles at 10 A g-1, the device retains a specific capacity of 83.3%. This study indicates that the PT is a potential candidate material for an aqueous energy storage device.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11644275 | PMC |
| http://dx.doi.org/10.3390/polym16233266 | DOI Listing |
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