Highly electroactive frozen-state polymerized polypyrrole nanostructures for flexible supercapacitors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F23%3A00576718" target="_blank" >RIV/61389013:_____/23:00576718 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/15/20/4140" target="_blank" >https://www.mdpi.com/2073-4360/15/20/4140</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym15204140" target="_blank" >10.3390/polym15204140</a>

Result language

angličtina

Original language name

Highly electroactive frozen-state polymerized polypyrrole nanostructures for flexible supercapacitors

Original language description

The polymerization of pyrrole in the frozen state with the presence of organic dyes (methyl orange (MO) and Acid Blue 25 (AB)) has proven to produce polypyrrole (PPy) nanostructures. Herein, we explore the electrochemical properties of PPy prepared under frozen-state conditions (−24 °C) with and without the presence of organic dyes. The electroactivity of PPy prepared with MO and AB significantly increased in all electrolytic media with a capacitance higher than this of the PPy prepared at room temperature. The highest capacitance (1914 F g−1) was obtained for PPy-MO in 0.2 M HCl solution. The impedance spectra of PPy showed a decrease in charge transfer resistance when the dyes were present. This indicates a conductivity increase of PPy. Improved electrochemical stability was observed for PPy, PPy-MO, and PPy-AB prepared at −24 °C, wherein a steady gain of capacitance was maintained during 5000 potential cycling. In addition, a PPy-based supercapacitor device was fabricated to demonstrate the energy storage characteristics of PPy, where it showed good capacitive behavior and stability. Overall, frozen-state polymerized PPy posed an impressive capacitive performance for flexible supercapacitors.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

2073-4360

Volume of the periodical

15

Issue of the periodical within the volume

20

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

4140

UT code for WoS article

001095124700001

EID of the result in the Scopus database

2-s2.0-85174862149