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Synthesis of Mn3O4/N-doped graphene hybrid and its improved electrochemical performance for lithium-ion batteries
Chen, Jiayuan1,2; Wu, Xiaofeng1; Gong, Yan1,2; Wang, Pengfei1,2; Li, Wenhui1,2; Tan, Qiangqiang1; Chen, Yunfa1
2017-04-01
发表期刊CERAMICS INTERNATIONAL
ISSN0272-8842
卷号43期号:5页码:4655-4662
摘要Mn3O4/N-doped graphene (Mn3O4/NG) hybrids were synthesized by a simple one-pot hydrothermal process. The scanning electron microscopy (SEM), transition electron microscopy (TEM), X-ray powder diffraction (XRD), Thermogravimetric analysis (TG), Raman Spectroscopy and X-ray photoelectron spectroscopy (XPS) were used to characterize the microstructure, crystallinity and compositions. It is demonstrated that Mn3O4 nanoparticles are high-dispersely anchored onto the individual graphene nanosheets, and also found that, in contrast with pure Mn3O4 obtained without graphene added, the introduction of graphene effectively restricts the growth of Mn3O4 nanoparticles. Simultaneously, the anchored well-dispersed Mn3O4 nanoparticles also play a role as spacers in preventing the restacking of graphene sheets and producing abundant nanoscale porous channels. Hence, it is well anticipated that the accessibility and reactivity of electrolyte molecules with Mn3O4/ NG electrode are highly improved during the electrochemical process. As the anode material for lithium ion batteries, the Mn3O4/NG hybrid electrode displays an outstanding reversible capacity of 1208.4 mAh g(-1) after 150 cycles at a current density of 88 mA g(-1), even still retained 284 mAh g(-1) at a high current density of 4400 mA CI- after 10 cycles, indicating the superior capacity retention, which is better than those of bare Mn3O4, and most other Mn3O4/C hybrids in reported literatures. Finally, the superior performance can be ascribed to the uniformly distribution of ultrafine Mn3O4 nanoparticles, successful nitrogen doping of graphene and favorable structures of the composites.
关键词Manganese Oxide Nitrogen-doped Grapbene Anode Material Lithium-ion Batteries
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ceramint.2016.12.138
收录类别SCI
语种英语
关键词[WOS]NITROGEN-DOPED GRAPHENE ; OXYGEN REDUCTION REACTION ; ANODE MATERIALS ; STORAGE PERFORMANCE ; HYDROTHERMAL SYNTHESIS ; REVERSIBLE CAPACITY ; CO3O4 NANOSHEETS ; MANGANESE OXIDES ; MN3O4 NANORODS ; NANOPARTICLES
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
项目资助者National Natural Science Foundation of China(51272253 ; 51672273)
WOS记录号WOS:000394073800097
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22004
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
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Chen, Jiayuan,Wu, Xiaofeng,Gong, Yan,et al. Synthesis of Mn3O4/N-doped graphene hybrid and its improved electrochemical performance for lithium-ion batteries[J]. CERAMICS INTERNATIONAL,2017,43(5):4655-4662.
APA Chen, Jiayuan.,Wu, Xiaofeng.,Gong, Yan.,Wang, Pengfei.,Li, Wenhui.,...&Chen, Yunfa.(2017).Synthesis of Mn3O4/N-doped graphene hybrid and its improved electrochemical performance for lithium-ion batteries.CERAMICS INTERNATIONAL,43(5),4655-4662.
MLA Chen, Jiayuan,et al."Synthesis of Mn3O4/N-doped graphene hybrid and its improved electrochemical performance for lithium-ion batteries".CERAMICS INTERNATIONAL 43.5(2017):4655-4662.
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