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author:

Yuan, Jun (Yuan, Jun.) [1] | Qiu, Min (Qiu, Min.) [2] | Hu, Xiang (Hu, Xiang.) [3] | Liu, Yangjie (Liu, Yangjie.) [4] | Zhong, Guobao (Zhong, Guobao.) [5] | Zhan, Hongbing (Zhan, Hongbing.) [6] | Wen, Zhenhai (Wen, Zhenhai.) [7]

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EI

Abstract:

The kinetics incompatibility between battery-type anode and capacitive-type cathode for sodium ion hybrid capacitors (SIHCs) seriously hinders their overall performance output. Herein, we construct a SIHCs device by coupling with quantum grade vanadium nitride (VN) nanodots anchored in one-dimensional N/F co-doped carbon nanofiber cages hybrids (VNQDs@PCNFs-N/F) as the freestanding anode and the corresponding activated N/F co-doped carbon nanofiber cages (APCNFs-N/F) as cathode. The strong coupling of VN quantum dots with N/F co-doped 1D conductive carbon cages effectively facilitates the ion/electron transport and intercalation-conversion-deintercalation reactions, ensuring fast sodium storage to surmount aforesaid kinetics incompatibility. Additionally, density functional theory calculations cogently manifest that the abundant active sites in the VNQDs@PCNFs-N/F configuration boost the Na+ adsorption/reaction activity well which will promote both 'intrinsic'and 'extrinsic'pseudocapacitance and further improve anode kinetics. Consequently, the assembled SIHCs device can achieve high energy densities of 157.1 and 95.0 Wh kg-1 at power densities of 198.8 and 9100.5 W kg-1, respectively, with an ultralong cycling life over 8000 cycles. This work further verified the feasibility of kinetics-compatible electrode design strategy toward metal ion hybrid capacitors. © 2022 American Chemical Society.

Keyword:

Anodes Cathodes Chemical bonds Density functional theory Kinetics Metal ions Nanocrystals Nitrides Quantum chemistry Semiconductor quantum dots Sodium

Community:

  • [ 1 ] [Yuan, Jun]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
  • [ 2 ] [Yuan, Jun]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Qiu, Min]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
  • [ 4 ] [Qiu, Min]College of Chemistry and Materials Science, Fujian Normal University, Fuzhou; 350000, China
  • [ 5 ] [Hu, Xiang]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
  • [ 6 ] [Liu, Yangjie]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
  • [ 7 ] [Liu, Yangjie]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 8 ] [Zhong, Guobao]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China
  • [ 9 ] [Zhong, Guobao]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 10 ] [Zhan, Hongbing]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 11 ] [Wen, Zhenhai]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou; 350002, China

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Source :

ACS Nano

ISSN: 1936-0851

Year: 2022

Issue: 9

Volume: 16

Page: 14807-14818

1 7 . 1

JCR@2022

1 5 . 8 0 0

JCR@2023

ESI HC Threshold:91

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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