Abstract
AbstractIn this study, new polypyrrole films (ppy) were synthesized using a physical plasma deposition (PAPVD) system; where the equipment design and methodology for plasma-assisted pyrrole polymerization were improvement. The morphology, functional groups, and thermal stability of the polymer network films were characterized by X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) techniques, respectively. The electrochemical properties of the films as capacitor were evaluated by cyclic voltammetry and electrochemical impedance spectroscopy. The results observed by SEM showed that the ppy 100W-1 and ppy 100W-2 films present uniformity in their structure. The analyses of TGA and DSC confirmed the improvement in stability; meanwhile for 100W-1 film, the presence of ppy bonds was corroborated by XPS. Plasma-activated ppy 100W-1 film exhibited higher capacitance and minor Rct resistance than that obtained for ppy 100W-2 film. The specific capacitances values of ppy 100W-1 and ppy 100w-2 films are 196 and 150 F/g in 1 M KCl. After charging and discharging tests of 1000 cycles at 5 mA cm−2 current density of ppy 100W-1 film retains 89% of its initial capacitance. Therefore, ppy 100W-1 film showed to be a promising material for use as an electrochemical capacitor.
Funder
Mexican Council for Science and Technology
Publisher
Springer Science and Business Media LLC
Subject
Materials Chemistry,Fuel Technology,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Reference35 articles.
1. Azam, M.U., Samad, M.A.: A novel organoclay reinforced UHMWPE nanocomposite coating for tribological applications. Prog. Org. Coatings. 118, 97–107 (2018). https://doi.org/10.1016/J.PORGCOAT.2018.01.028
2. Han, Y., Dai, L.: Conducting polymers for flexible supercapacitors. Macromol. Chem. Phys. 220, 1800355 (2019). https://doi.org/10.1002/MACP.201800355
3. Lovascio, S.: Cold plasma deposition of organisilicon films with diferent monomers in a dielectric-barrier discharge Ph. D. Thesis. 133, 34–44 (2010)
4. Yagüe, J.L., Agulló, N., Borrós, S.: Plasma polymerization of polypyrrole-like films on nanostructured surfaces. Plasma Process. Polym. 5, 433–443 (2008). https://doi.org/10.1002/ppap.200700139
5. Joglekar, Y.N., Wolf, S.J.: The elusive memristor: properties of basic electrical circuits. Eur. J. Phys. 30, 661–675 (2009). https://doi.org/10.1088/0143-0807/30/4/001