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Author:

Zhang, Xu (Zhang, Xu.) | Jin, Yuhong (Jin, Yuhong.) | Zhang, Ke (Zhang, Ke.) | Yuan, Qiong (Yuan, Qiong.) | Wang, Hao (Wang, Hao.) | Jia, Mengqiu (Jia, Mengqiu.)

Indexed by:

EI Scopus SCIE

Abstract:

Two-dimensional transition metal dichalcogenides, which display considerable theoretical capacity and large layer spacing, have been regarded as promising candidates as anode materials for sodium-ion bat-teries (SIBs). However, their low conductivity and large volume change during charge-discharge cycles leads to performance degradation. Herein, polyvinylpyrrolidone (PVP) is used as a soft template to syn-thesize PVP-derived nitrogen-doped carbon-coated MoS2 composites (MoS2/NC) by a simple hydrother-mal method followed by high-temperature treatment. The as-prepared composite exhibits a flowerball-like morphology and a diameter of approximately 250 nm. The optimized MoS2/NC has the most uniform particle size and provides the best performance, with a stable capacity of 504.9 mAh g-1 after 120 cycles at a current density of 100 mA g-1. It has excellent rate performance, which can reach 524.6, 481.9, 447.7, 412.5, and 370.9 mAh g-1 at current densities of 0.1, 0.2, 0.5, 1 and 2 A g-1, respectively. The small par-ticle size and the addition of carbonaceous materials play an important role in their excellent electro-chemical properties. This study opens up a simple and effective way to synthesize high-performance two-dimensional MoS2 composite anodes for SIBs.(c) 2022 Elsevier Inc. All rights reserved.

Keyword:

Anode materials Nanomaterial Nitrogen-doped carbon Sodium ion battery Molybdenum disulfide

Author Community:

  • [ 1 ] [Zhang, Xu]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 2 ] [Zhang, Ke]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 3 ] [Yuan, Qiong]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 4 ] [Jia, Mengqiu]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 5 ] [Jin, Yuhong]Beijing Univ Technol, Fac Mat & Mfg, Key Lab New Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Hao]Beijing Univ Technol, Fac Mat & Mfg, Key Lab New Funct Mat, Minist Educ, Beijing 100124, Peoples R China
  • [ 7 ] [Jin, Yuhong]Beijing Univ Technol, Beijing Guyue New Mat Res Inst, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Jia, Mengqiu]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China;;[Jin, Yuhong]Beijing Univ Technol, Fac Mat & Mfg, Key Lab New Funct Mat, Minist Educ, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN: 0021-9797

Year: 2023

Volume: 630

Page: 786-794

9 . 9 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:20

Cited Count:

WoS CC Cited Count: 9

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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