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Author:

Wang, Yu (Wang, Yu.) | Jin, Yuhong (Jin, Yuhong.) | Duan, Yuhao (Duan, Yuhao.) | Jia, Mengqiu (Jia, Mengqiu.)

Indexed by:

EI Scopus SCIE

Abstract:

Three-dimensional fabricated Fe3O4 quantum dots/graphene aerogel materials (Fe3O4 QDs/GA) were obtained from a facile hydrothermal strategy, followed by a subsequently heat treatment process. The Fe3O4 QDs (2-5 nm) are anchored tightly and dispersed uniformly on the surface of three-dimensional GA. The as-prepared anode materials exhibit a high reversible capacity of 1078 mAh g(-1) at a current density of 100 mA g(-1) after 70 cycles in lithium-ion batteries (LIBs) system. Moreover, the rate capacity still remains 536 mAh g(-1) at 1000 mA g(-1). The enhanced electrochemical performance is attributed to that the GA not only acts as a three-dimensional electronic conductive matrix for the fast transportation of Li+ and electrons, but also provides with double protection against the aggregation and pulverization of Fe3O4 QDs during cycling. Apparently, the synergistic effects of the three-dimensional GA and the quantum dots are fully utilized. Therefore, the Fe3O4 QDs/GA composites are promising materials as advanced anode materials for LIBs.

Keyword:

Graphene aerogel Lithium-ion batteries Fe3O4 quantum dots Anode materials

Author Community:

  • [ 1 ] [Wang, Yu]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 2 ] [Duan, Yuhao]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 3 ] [Jia, Mengqiu]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 4 ] [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, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China

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Source :

IONICS

ISSN: 0947-7047

Year: 2017

Issue: 8

Volume: 23

Page: 2005-2011

2 . 8 0 0

JCR@2022

ESI Discipline: PHYSICS;

ESI HC Threshold:158

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 8

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

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