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Author:

Teng, Weili (Teng, Weili.) | Zhou, Qinqin (Zhou, Qinqin.) | Lv, Guanlin (Lv, Guanlin.) | Hu, Peng (Hu, Peng.) | Du, Yucheng (Du, Yucheng.) | Li, Hongyi (Li, Hongyi.) | Hu, Yuxiang (Hu, Yuxiang.) | Liu, Wenxin (Liu, Wenxin.) | Wang, Jinshu (Wang, Jinshu.) (Scholars:王金淑)

Indexed by:

EI Scopus SCIE

Abstract:

Fiber-shaped supercapacitor (FSSC) is considered as a promising energy storage device for wearable elec-tronics due to its high power density and outstanding safety. However, it is still a great challenge to simultaneously achieve high specific capacitance especially at rapid charging/discharging rate and long-term cycling stability of fiber electrode in FSSC for practical application. Here, a ternary poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/reduced graphene oxide/polypyrrole (PEDOT:PSS/rGO/ PPy) fiber electrode was constructed by in situ chemical polymerization of pyrrole on hydrothermally-assembled and acid-treated PEDOT:PSS/rGO (PG) hybrid hydrogel fiber. In this case, the porous PG hybrid fiber framework possesses combined advantages of highly-conductive PEDOT and flexible two-dimensional (2D) small-sized rGO sheets, which provides large surface area for the deposition of high-pseudocapacitance PPy, multiscale electrons/ions transport channels for the efficient utilization of active sites, and buffering layers to accommodate the structure change during electrochemical process. Attributed to the synergy, as-obtained ternary fiber electrode presents ultrahigh volumetric/areal specific capacitance (389 F cm-3 at 1 A cm-3 or 983 mF cm-2 at 2.5 mA cm-2) and outstanding rate performance (56 %, 1-20 A cm-3). In addition, 80 % preservation of initial capacitance after 8000 cycles for the corre-sponding FSSC also illustrates its greatly improved cycle stability compared with 64 % of binary PEDOT: PSS/PPy based counterpart. Accordingly, here proposed strategy promises a new opportunity to develop high-activity and durable electrode materials with potential applications in supercapacitor and beyond.(c) 2023 Elsevier Inc. All rights reserved.

Keyword:

Fiber-shaped supercapacitor Conducting polymer Rate capability Cycle stability Reduced graphene oxide

Author Community:

  • [ 1 ] [Teng, Weili]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 2 ] [Zhou, Qinqin]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 3 ] [Lv, Guanlin]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 4 ] [Hu, Peng]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 5 ] [Du, Yucheng]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 6 ] [Li, Hongyi]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 7 ] [Hu, Yuxiang]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 8 ] [Wang, Jinshu]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China
  • [ 9 ] [Liu, Wenxin]Chinese Acad Sci, Aerosp Informat Res Inst, Beijing, Peoples R China
  • [ 10 ] [Liu, Wenxin]Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing, Peoples R China

Reprint Author's Address:

  • [Zhou, Qinqin]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China;;[Wang, Jinshu]Beijing Univ Technol, Fac Mat & Mfg, Key Lab Adv Funct Mat, Beijing Int Sci & Technol Cooperat Base Carbon Bas, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN: 0021-9797

Year: 2023

Volume: 636

Page: 245-254

9 . 9 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:20

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 22

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

Affiliated Colleges:

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