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[期刊论文]

Composites of SnSb Nanoparticles Embedded in Porous Carbon Nanofibers Wrapped with Reduced Graphene Oxide for Sodium Storage

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author:

Yuan, Zhaoxia (Yuan, Zhaoxia.) [1] | Wang, Luwen (Wang, Luwen.) [2] | Wang, Gaofeng (Wang, Gaofeng.) [3] | Unfold

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EI

Abstract:

Alloying-type anode materials are hopeful candidates for sodium (Na)-ion batteries (SIBs) because of their high theoretical capacity by forming Na-rich intermetallic compounds. However, the huge volume changes lead to serious aggregation and crushing of active materials during the cycling process, resulting in a rapid decay in the capacity of the electrode materials. Herein, we report the manufacture of reduced graphene oxide wrapped on the surface of tin-antimony/nitrogen-doped porous carbon nanofibers (SnSb/N-PCNFs/rGO) by a coaxial electrospinning technique and subsequent annealing treatment. The cooperative effect of rGO and PCNFs can greatly relieve the volume expansion of the SnSb alloy in the cycling process and offer more insertion sites for Na+ ions, thus significantly improving the electrochemical performance. As a SIB anode, the SnSb/N-PCNFs/rGO composite exhibits better reversible capacity (maintaining 416 mAh g-1 at 100 mA g-1 after 120 cycles), excellent rate performance, and marvelous cycle performance (up to 303 mAh g-1 at 2000 mA g-1 after 1000 cycles), making it a hopeful anode candidate for SIBs. © 2021 American Chemical Society. All rights reserved.

Keyword:

Anodes Carbon nanofibers Graphene Porous materials Reduced Graphene Oxide Sodium compounds Tin alloys Tin oxides

Community:

  • [ 1 ] [Yuan, Zhaoxia]Key Laboratory of RF Circuits and System, Ministry of Education, Electronic and Information College, Hangzhou Dianzi University, Hangzhou; 310018, China
  • [ 2 ] [Yuan, Zhaoxia]Department of Materials Science, Fudan University, Shanghai; 200433, China
  • [ 3 ] [Wang, Luwen]Key Laboratory of RF Circuits and System, Ministry of Education, Electronic and Information College, Hangzhou Dianzi University, Hangzhou; 310018, China
  • [ 4 ] [Wang, Gaofeng]Key Laboratory of RF Circuits and System, Ministry of Education, Electronic and Information College, Hangzhou Dianzi University, Hangzhou; 310018, China
  • [ 5 ] [Yang, Zunxian]National and Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou; 350002, China
  • [ 6 ] [Dong, Linxi]Key Laboratory of RF Circuits and System, Ministry of Education, Electronic and Information College, Hangzhou Dianzi University, Hangzhou; 310018, China
  • [ 7 ] [Yu, Xuebin]Key Laboratory of RF Circuits and System, Ministry of Education, Electronic and Information College, Hangzhou Dianzi University, Hangzhou; 310018, China
  • [ 8 ] [Yu, Xuebin]Department of Materials Science, Fudan University, Shanghai; 200433, China

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Source :

ACS Applied Nano Materials

ISSN: 2574-0970

Year: 2021

Issue: 1

Volume: 4

Page: 826-833

6 . 1 4

JCR@2021

5 . 3 0 0

JCR@2023

ESI HC Threshold:142

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

30 Days PV: 1

Affiliated Colleges:

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