Janus Graphene Oxide Sheets with Fe3O4 Nanoparticles and Polydopamine as Anodes for Lithium-Ion Batteries

2021 ◽  
Vol 13 (12) ◽  
pp. 14786-14795
Author(s):  
Jiwon Jang ◽  
Seok Hyun Song ◽  
Hyeri Kim ◽  
Junsoo Moon ◽  
Hyungju Ahn ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Fe3o4 Nanoparticles ◽  
Lithium Ion ◽  
Graphene Oxide Sheets

Reduced Graphene Oxide Decorated with Fe3O4 Nanoparticles as High Performance Anode for Lithium Ion Batteries

2012 ◽  
Vol 519 ◽  
pp. 108-112 ◽  
Author(s):  
Huai Liang Xu ◽  
Yang Shen ◽  
Hong Bi
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Fe3o4 Nanoparticles ◽  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
A Value ◽  
Reduced Graphene ◽  
20 Nm

A composite of reduced graphene oxide (r-GO) decorated densely with 20 nm Fe3O4 nanoparticles has been prepared by a facile solvothermal method. The Fe3O4/r-GO composites are used as the anode material for lithium ion batteries, which show an extremely high initial discharge specific capacity of 1702 mAh/g. Compared with the pure Fe3O4 nanoparticles, the composite anode exhibits a higher capacity retention capability since its specific capacity fades very slowly and retains a value of 711 mAh/g after 30 cycles. The r-GO sheets worked as an ultra-thin and conductive substrate can not only prevent the detachment and agglomeration of Fe3O4 nanoparticles, but also compensate for the volume change of Fe3O4 nanoparticles during the charge-discharge cycles, and thus extend the cycling life of the Fe3O4/r-GO composites electrode.

Graphene oxide sheets-induced growth of nanostructured Fe3O4 for a high-performance anode material of lithium ion batteries

2015 ◽  
Vol 3 (24) ◽  
pp. 12938-12946 ◽  
Author(s):  
Xiangfei Meng ◽  
Youlong Xu ◽  
Xiaofei Sun ◽  
Jie Wang ◽  
Lilong Xiong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Lithium Ions ◽  
Graphene Oxide Sheets

Nanostructured Fe3O4 is intrinsically prone to aggregation, which hinders insertion and extraction of lithium ions.

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