Mo2C/N-doped carbon nanowires as anode materials for sodium-ion batteries

被引：24

作者：

Li, Xiang ^{[1
]}

Deng, Mengdie ^{[2
]}

Zhang, Wenbiao ^{[2
]}

Gao, Qingsheng ^{[2
]}

Wang, Hui ^{[1
]}

Yuan, Bin ^{[1
]}

Yang, Lichun ^{[1
]}

Zhu, Min ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China

[2] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 194卷

基金：

中国国家自然科学基金;

关键词：

Mo2C; N-doped carbon; Nanocomposite; Sodium-ion battery; Energy storage and conversion; N-DOPED CARBON; INTERCALATION MECHANISM; MXENE NANOSHEETS; CARBIDE; STORAGE; NANOCOMPOSITES; LITHIUM;

D O I：

10.1016/j.matlet.2017.02.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein we report Mo2C/N-doped carbon hierarchical nanowires (Mo2C/N-C HNWs) as anode materials for sodium-ion batteries. In the Mo2C/N-C HNWs, Mo2C nanocrystallites are uniformly distributed in N-doped carbon matrix. The nanocrystallites of Mo2C offer short paths for Na+ diffusion, the mesoporous structure facilitates the diffusion of electrolyte, and the N-doped carbon matrix accelerates the electron transfer. As anode materials for sodium-ion batteries, the Mo2C/N-C HNWs exhibited reversible capacities of 381 and 308 mAh g(-1) at current densities of 50 and 200 mA g(-1), respectively. Our results demonstrate the enhanced Na+ storage activity of Mo2C after structure tailoring, elucidating the potential of transition-metal carbides as promising anode materials for sodium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：30 / 33

页数：4

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