A novel porous reduced microcrystalline graphene oxide supported Fe3O4@C nanoparticle composite as anode material with excellent lithium storage performances

作者：Ma, Canliang^*; Shi, Jing; Zhao, Yun^*; Song, Ning-Jing; Wang, Yuxiang

来源：Chemical Engineering Journal, 2017, 326: 507-517.

DOI：10.1016/j.cej.2017.05.180

• Microcrystalline graphene oxide
• Modified pressurized oxidation
• Low-cost
• Fe3O4@C/PrMGO composite
• High electrochemical performances

The competitiveness of reduced graphene oxide (GO) based composite can be significantly improved when the raw material of GO become the low-cost microcrystalline graphite mine. Herein, we first successfully fabricate high-quality microcrystalline graphite GO (MGO) with small size < 1 mu m by a modified pressurized oxidation approach. Subsequently, Fe3O4@C/PrMGO composite is simply constructed by using porous reduced MGO (PrMGO) to support carbon coated Fe3O4 nanoparticles (Fe3O4@CNPs). The Fe3O4@C/PrMGO composite exhibits high reversible capacity and excellent cyclic stability that a high reversible capacity of 1216 mA h g(-1) is received after 392 cycles at 100 mA g(-1). Meanwhile, the composite possesses high rate retentions, superior structural and cycling stability, which are further revealed by rate test, SEM and EIS analyses. The significant advantages of Fe3O4@C/PrMGO composite (low cost, facile operation and high electrochemical performances) endow the composite to be practically promising anode material for next-generation LIBs. This research supplies a new strategy to fabricate low-cost and high performances MGO-based anode materials.

• 出版日期2017-10-15
• 单位晋中学院; 中国科学院; 山西大学