期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 26, 期 8, 页码 1846-1855出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201904357
关键词
all-hydrogel-state supercapacitors; conducting polymers; macromolecular interactions; self-standing hydrogels
资金
- National Nature Science Foundation of China [21571084]
- National First-Class Discipline Program of Light Industry Technology and Engineering (LIFE2018-19)
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX17_1433]
- MOE & SAFEA for the 111 Project [B13025]
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 808.2 mF cm(-2), and a high energy density of 0.63 mWh cm(-3) at high power density of 28.42 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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