Abstract
A three-dimensional hierarchical sandwich structured Fe3O4@C/Graphene nanocomposite was synthesized with a facile hydrothermal method, followed by carbonization process. The Fe3O4@C/Graphene nanocomposite consists of well-dispersed carbon enwrapped Fe3O4 nanoparticles anchored on graphene layers. The three-dimensional sandwich structure and the wrapping carbon effectively improve the mechanical stability and conductivity of encapsulated Fe3O4. The as-prepared Fe3O4@C/Graphene composite delivers a specific capacity of 1253.3 mAh g−1 at the first cycle and 901.5 mAh g−1 after 200 cycles at 200 mA g−1. Even at 1500 mA g−1, the Fe3O4@C/Graphene nanocomposite is able to deliver a discharge capacity of 592.3 mAh g−1. The good cycle and rate performance of Fe3O4@C/Graphene anode can be attributed to its micro−/mesoporous structure with large specific surface area, which not only provides more transmission paths and active sites, but also reduces the diffusion impedance in electrolyte to realize fast transport of Li ions.
| Original language | English |
|---|---|
| Article number | 113240 |
| Journal | Journal of Electroanalytical Chemistry |
| Volume | 847 |
| DOIs | |
| Publication status | Published - Aug 15 2019 |
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Keywords
- Anode
- FeO@C/Graphene composite
- Lithium ion battery
- Three-dimensional hierarchical
ASJC Scopus subject areas
- Analytical Chemistry
- Chemical Engineering(all)
- Electrochemistry
Cite this
Hierarchical sandwiched Fe3O4@C/Graphene composite as anode material for lithium-ion batteries. / Li, Haipeng; Wang, Jiayi; Li, Yue; Zhao, Yan; Tian, Yuan; Kurmanbayeva, Indira; Bakenov, Zhumabay.
In: Journal of Electroanalytical Chemistry, Vol. 847, 113240, 15.08.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hierarchical sandwiched Fe3O4@C/Graphene composite as anode material for lithium-ion batteries
AU - Li, Haipeng
AU - Wang, Jiayi
AU - Li, Yue
AU - Zhao, Yan
AU - Tian, Yuan
AU - Kurmanbayeva, Indira
AU - Bakenov, Zhumabay
PY - 2019/8/15
Y1 - 2019/8/15
N2 - A three-dimensional hierarchical sandwich structured Fe3O4@C/Graphene nanocomposite was synthesized with a facile hydrothermal method, followed by carbonization process. The Fe3O4@C/Graphene nanocomposite consists of well-dispersed carbon enwrapped Fe3O4 nanoparticles anchored on graphene layers. The three-dimensional sandwich structure and the wrapping carbon effectively improve the mechanical stability and conductivity of encapsulated Fe3O4. The as-prepared Fe3O4@C/Graphene composite delivers a specific capacity of 1253.3 mAh g−1 at the first cycle and 901.5 mAh g−1 after 200 cycles at 200 mA g−1. Even at 1500 mA g−1, the Fe3O4@C/Graphene nanocomposite is able to deliver a discharge capacity of 592.3 mAh g−1. The good cycle and rate performance of Fe3O4@C/Graphene anode can be attributed to its micro−/mesoporous structure with large specific surface area, which not only provides more transmission paths and active sites, but also reduces the diffusion impedance in electrolyte to realize fast transport of Li ions.
AB - A three-dimensional hierarchical sandwich structured Fe3O4@C/Graphene nanocomposite was synthesized with a facile hydrothermal method, followed by carbonization process. The Fe3O4@C/Graphene nanocomposite consists of well-dispersed carbon enwrapped Fe3O4 nanoparticles anchored on graphene layers. The three-dimensional sandwich structure and the wrapping carbon effectively improve the mechanical stability and conductivity of encapsulated Fe3O4. The as-prepared Fe3O4@C/Graphene composite delivers a specific capacity of 1253.3 mAh g−1 at the first cycle and 901.5 mAh g−1 after 200 cycles at 200 mA g−1. Even at 1500 mA g−1, the Fe3O4@C/Graphene nanocomposite is able to deliver a discharge capacity of 592.3 mAh g−1. The good cycle and rate performance of Fe3O4@C/Graphene anode can be attributed to its micro−/mesoporous structure with large specific surface area, which not only provides more transmission paths and active sites, but also reduces the diffusion impedance in electrolyte to realize fast transport of Li ions.
KW - Anode
KW - FeO@C/Graphene composite
KW - Lithium ion battery
KW - Three-dimensional hierarchical
UR - http://www.scopus.com/inward/record.url?scp=85067620219&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067620219&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2019.113240
DO - 10.1016/j.jelechem.2019.113240
M3 - Article
VL - 847
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
SN - 1572-6657
M1 - 113240
ER -