Self-Standing Hydrogels Composed of Conducting Polymers for All-Hydrogel-State Supercapacitors.
Chemistry
; 26(8): 1846-1855, 2020 Feb 06.
Article
em En
| MEDLINE
| ID: mdl-31808206
ABSTRACT
Conducting polymer hydrogels that are capable of contacting with electrolytes at the molecular level, represent an important electrode material. However, the fabrication of self-standing hydrogels merely composed of conducting polymers is still challenging owing to the absence of reliable methods. Herein, a novel and facile macromolecular interaction assisted route is reported to fabricate self-standing hydrogels consisting of polyaniline (PANi providing high electrochemical activity) and poly(3,4-ethylenedioxythiophene) (PEDOT enabling high electronic conductivity). Owing to the synergistic effect between them, the self-standing hydrogels possess good mechanical properties and electronic/electrochemical performances, making them an excellent potential electrode for solid-state energy storage devices. A proof-of-concept all-hydrogel-state supercapacitor is fabricated, which exhibits a high areal capacitance of 808.2â
mF cm-2 , and a high energy density of 0.63â
mWh cm-3 at high power density of 28.42â
mW cm-3 , superior to many recently reported conducting polymer hydrogels based supercapacitors. This study demonstrates a novel promising strategy to fabricate self-standing conducting polymer hydrogels.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Chemistry
Assunto da revista:
QUIMICA
Ano de publicação:
2020
Tipo de documento:
Article