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J Colloid Interface Sci. 2019 Jun 15;546:60-69. doi: 10.1016/j.jcis.2019.03.058. Epub 2019 Mar 18.

Poly(1,5-diaminoanthraquinone) coated carbon cloth composites as flexible electrode with extraordinary cycling stability for symmetric solid-state supercapacitors.

Author information

1
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, China.
2
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
3
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China. Electronic address: pliu@lzu.edu.cn.

Abstract

Poly(1,5-diaminoanthraquinone) (PDAA) coated carbon cloth (ROCC@PDAA) composites were fabricated as flexible electrode by in-situ chemical oxidation polymerization of 1,5-diaminoanthraquinone (DAA) on the surface of oxidized carbon cloth (OCC) using ammonium persulfate (APS) as oxidant in the mixture of N,N-dimethylformamide/acetonitrile by refluxing with HClO4 as initiator, followed by reducing the OCC with hydrazine. The optimized flexible composites possessed high areal capacitance of 1.3 F cm-2 (specific capacitance of 81.9 F g-1) at the current density of 1 mA cm-2 with excellent rate properties (61% at 20 mA cm-2) and extraordinary cycling stability (159% after 20,000 cycles). The flexible symmetric solid-state supercapacitor (SSC) constructed with the optimized ROCC@PDAA composite could light up a red light emitting diode, also exhibited excellent electrochemical performance with remarkable mechanical and flexible properties. All the results demonstrated the potential application of the proposed ROCC@PDAA composites for flexible energy storage devices.

KEYWORDS:

Carbon cloth; Extraordinary cycling stability; In-situ chemical oxidation polymerization; Poly(1,5-diaminoanthraquinone); Symmetric solid-state supercapacitors

PMID:
30903810
DOI:
10.1016/j.jcis.2019.03.058

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