Poly-melamine sponge derived N-doped carbon/Fe3O4/graphene synthesized for lithium-ion anode

被引：3

作者：

Duan, Xiaoyong ^{[1
,2
]}

Wang, Jie ^{[2
,3
]}

Zhao, Zheng ^{[2
,3
]}

Zhao, Huifang ^{[2
,3
]}

Cheng, Miao ^{[2
,3
]}

Wang, Congwei ^{[2
]}

Lei, Yong ^{[1
]}

Wang, Junying ^{[2
]}

Wang, Junzhong ^{[2
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

[2] Chinese Acad Sci, Inst Coal Chem, CAS Key Lab Carbon Mat, Taiyuan 030001, Shanxi, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

MATERIALS LETTERS | 2019年 / 251卷

基金：

中国国家自然科学基金;

关键词：

Structural; Composite materials; Fe3O4; Graphene; Poly-melamine sponge; Lithium-ion batteries;

D O I：

10.1016/j.matlet.2019.05.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nitrogen-doped pyrolytic carbon coated Fe3O4 nanocrystals supported by large sheet-size graphene (N-pC/Fe3O4/G) were synthesized by a self-assembly process followed by heating to obtain a high-performance anode material. The 3D porous poly-melamine sponge (PMS) acted as a template for the assembly of graphene to form curved and hollow foam structure, and as a source of N-doped carbon coating of Fe3O4 nanocrystals. The N-pC/Fe3O4/G composite exhibits good reversible capacity of 825 mAh/g after 350 cycles at a high current density of 1 A/g, showing much better performance than either one of its two components. Its performance benefits from the long-range conductivity of the graphene foam and the short-range local conductivity of the N-doped carbon coating. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：57 / 60

页数：4

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