Back to Search
Start Over
Polyaniline/Poly(acrylamide‐co‐sodium acrylate) Porous Conductive Hydrogels with High Stretchability by Freeze‐Thaw‐Shrink Treatment for Flexible Electrodes.
- Source :
-
Macromolecular Materials & Engineering . Mar2020, Vol. 305 Issue 3, p1-11. 11p. - Publication Year :
- 2020
-
Abstract
- With the development of alternatives to traditional fossil energy and the rise of wearable technology, flexible energy storage devices have attracted great attention. In this paper, a polyaniline/poly(acrylamide‐sodium acrylate copolymer) hydrogel (PASH) with high flexibility and excellent electrochemical properties for flexible electrodes is fabricated by freeze‐thaw‐shrink treatment of a highly water‐absorptive hydrogel, together with in‐situ polymerization of aniline at a low aniline concentration (0.1 mol L−1). The PASH exhibits a conductivity of 4.05 S m−1 and an elongation at break of 1245%. The freeze‐thaw‐shrink treatment greatly improves the electrochemical performance and stability of the conductive PASH. The area specific capacitance of PASH reaches 849 mF cm−2 and the capacitance maintains 89% after 1000 galvanostatic charge–discharge cycles. All the raw materials are conventional industrialized materials and no additional templating agent is needed during the entire synthesis process. This study provides a cost‐efficient approach for the fabrication of conductive polymer hydrogels, which has a broad application prospect in flexible energy storage electronic devices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14387492
- Volume :
- 305
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Macromolecular Materials & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 142182309
- Full Text :
- https://doi.org/10.1002/mame.201900737