High performance electrochemical pseudocapacitors from ionic liquid assisted electrochemically synthesized p-type
A Ehsani1, H Mohammad Shiri2, E Kowsari3
1Department of Chemistry, Faculty of Science, University of Qom, Qom, Iran.
Journal of Colloid and Interface Science
|November 22, 2016
Summary
This study synthesizes a novel ionic liquid, 1-methyl-3-methylimidazolium bromide (MB), and creates efficient POAP/MB films for electrochemical supercapacitors, demonstrating high performance and stability.
Area of Science:
- Electrochemistry
- Materials Science
- Ionic Liquids
Background:
- Development of advanced electrode materials is crucial for high-performance electrochemical supercapacitors.
- Ionic liquids offer unique properties for energy storage applications.
Purpose of the Study:
- To synthesize a novel ionic liquid, 1-methyl-3-methylimidazolium bromide (MB).
- To fabricate poly(3,4-ethylenedioxythiophene) (POAP)/MB composite films for electrochemical supercapacitor electrodes.
- To characterize the synthesized ionic liquid and the POAP/MB composite film.
Main Methods:
- Chemical synthesis of 1-methyl-3-methylimidazolium bromide (MB).
- Electropolymerization of POAP in the presence of MB.
- Theoretical study using Atoms in Molecules (AIM) theory.
- Electrochemical characterization including cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy.
Main Results:
- Successful synthesis of a new, highly efficient ionic liquid (MB).
- Fabrication of stable POAP/MB composite films with a high active surface area.
- Demonstrated excellent electrochemical performance for supercapacitor applications.
Conclusions:
- The novel POAP/MB composite films are promising electrode materials for electrochemical redox capacitors.
- The synthesized materials offer advantages such as ease of synthesis, high surface area, and stability in aqueous electrolytes.
