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Lv Y, Yang X, Du W, Ma P, Wang H, Bonnefont A, Wright DS, Ruhlmann L, Zhang C. An Efficient Electrochromic Supercapacitor Based on Solution-Processable Nanoporous Poly{tris[4-(3,4-ethylenedioxythiophene)phenyl]amine}. CHEMSUSCHEM 2020; 13:3844-3854. [PMID: 32413249 DOI: 10.1002/cssc.202000941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/11/2020] [Indexed: 06/11/2023]
Abstract
A new green synthetic route to tris[4-(3,4-ethylenedioxythiophene)phenyl]amine (TEPA) monomer has been developed and the molecular structure of TEPA has been determined by using single-crystal XRD. Solution-processable nanoporous poly{tris[4-(3,4-ethylenedioxythiophene)phenyl]amine} (PTEPA) is prepared by a chemical oxidative polymerization in a microemulsion. Based on the distorted structure of TEPA in the solid state, it is proposed that dendritic PTEPA has a distorted 3 D conformation with multiple twisted channels and pores that are narrowed and blocked by bifurcation and distortion of PTEPA, which is consistent with the observed hierarchical pore structure. As a cathode material, PTEPA exhibits a discharge capacity of 89.5 mAh g-1 in the initial cycle with a highly sloping two-stage discharge curve and relatively stable cycling performance. Beyond its excellent energy storage properties, PTEPA also shows relatively good electrochromic performance. Furthermore, an efficient all-solid-state electrochromic supercapacitor (ECSC) with good electrochromic performance and high energy storage capacity (13.3 mF cm-2 ) is assembled from PTEPA and nanoporous graphene films. During charge-discharge processes, the color of the ECSC changes between yellow-green and steel blue. Thus, the energy storage level of the ECSC can be monitored by the corresponding color changes. The fabricated ECSC may have practical applications, for example, in self-powered electrochromic smart windows.
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Affiliation(s)
- Yaokang Lv
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
- Institut de Chimie (UMR au CNRS n°7177), Université de Strasbourg, 4, rue Blaise Pascal CS 90032, 67081, Strasbourg Cedex, France
| | - Xing Yang
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| | - Weishi Du
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| | - Peihua Ma
- Shaoxing Jinye Environmental Protection Technology Co., Ltd., No.173, Zhenghai Road, Binhai Industrial Zone, Keqiao District, Shaoxing, 312073, P.R. China
| | - Hu Wang
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
| | - Antoine Bonnefont
- Institut de Chimie (UMR au CNRS n°7177), Université de Strasbourg, 4, rue Blaise Pascal CS 90032, 67081, Strasbourg Cedex, France
| | - Dominic S Wright
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Laurent Ruhlmann
- Institut de Chimie (UMR au CNRS n°7177), Université de Strasbourg, 4, rue Blaise Pascal CS 90032, 67081, Strasbourg Cedex, France
| | - Cheng Zhang
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P.R. China
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