Electropolymerized polypyrrole/safranin-O films: capacitance enhancement

0545079 - ÚMCH 2022 RIV GB eng J - Journal Article
Tumacder, Doebner Von - Morávková, Zuzana - Minisy, Islam M. - Hromádková, Jiřina - Bober, Patrycja
Electropolymerized polypyrrole/safranin-O films: capacitance enhancement.
Polymer. Roč. 230, 16 September (2021), č. článku 124099. ISSN 0032-3861. E-ISSN 1873-2291
R&D Projects: GA ČR(CZ) GA18-04669S
Institutional support: RVO:61389013
Keywords : polypyrrole * safranin-O * capacitance
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impact factor: 4.432, year: 2021
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0032386121007229?via%3Dihub

Polypyrrole (PPy) prepared in the presence of organic dyes has been recently studied due to its interesting morphology and electronic properties. This present work describes the facile preparation of electropolymerized PPy/safranin-O film with varying safranin-O concentrations through cyclic voltammetry. Raman spectra of the films confirm the presence of PPy and safranin-O while UV–Vis spectra of the films suggest an interaction between safranin-O and PPy. In the presence of added safranin-O, a cauliflower-like morphological formation on the film's surface is obtained. The areal capacitance of PPy is significantly enhanced by the incorporation of safranin-O with values from 22.89 mF/cm2 to a higher capacitance value of 277.8 mF/cm2 at 10 mV/s scan rate. The PPy/safranin-O films showed better cycling stability over 1000 cycles than a pristine PPy film.
Permanent Link: http://hdl.handle.net/11104/0321951