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Interface engineering in conducting polymers-based supercapacitor
DOI:10.1016/j.est.2024.112598.png)
Abstract
En 中文
Conducting polymers (CPs), such as polypyrrole, polyaniline, polythiophene, poly (3,4-ethylenedioxythiophene) and polyindole are currently the focus of extensive research in supercapacitors due to their conjugated structures, variable oxidation states, and efficient doping and de-doping processes, which enhance areal/specific capacitance. However, pure CP electrodes encounter challenges such as lower energy density and inadequate cycling stability, hampering their widespread industrial application. Interface interactions between different materials can alter the electronic states and physicochemical properties of composites, thereby significantly impacting electrochemical performance. In this review, we explore interface engineering strategies employed in the fabrication of novel CPs-based composite electrode materials, which involve modifying CPs with carbon-based materials, transition metal oxides, metal organic frameworks and other commonly used nanomaterials. These strategies include hydrogen bonding, n-n interactions, electrostatic interactions, confinement effects, and synergistic effects. We emphasize the mechanisms underlying the enhancement of CPs-based composites and detailed various preparation methods. By providing insights into the preparation and utilization of CPs-based composites for supercapacitors, this review contributes valuable perspectives for future research directions.
Keywords:
Conducting polymers composite
Interface engineering
Non-covalent interaction
Confinement effect
Synergistic effect

