Hollow porous CuO/C composite microcubes derived from metal-organic framework templates for highly reversible lithium-ion batteries

被引：75
作者：
Yin, Hong [1 ]
Yu, Xiang-Xiang [1 ]
Li, Qing-Wei [1 ]
Cao, Ming-Lei [1 ]
Zhang, Wei [1 ]
Zhao, Han [1 ]
Zhu, Ming-Qiang [1 ]
机构：
[1] Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 706卷
关键词：
Metal-organic frameworks; Hollow porous structure; Microcubes; Lithium-ion batteries; ANODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; HIGH-CAPACITY; MICROSPHERES; LIFE;
D O I：
10.1016/j.jallcom.2017.02.215
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hollow porous CuO/C composite microcubes are prepared by controlled pyrolysis of [Cu-3(btc)(2)](n) (btc = benzene-1, 3, 5-tricarboxylate) metal-organic frameworks (MOFs). SEM and TEM images indicate that the as-prepared CuO/C microcubes possess uniform appearance with hollow porous structures. Electrochemical measurements show that the hollow porous CuO/C composite microcubes deliver a highly reversible capacity of 510.5 mA h g(-1) after 200 cycles at a current density of 100 mA g(-1). Due to its hollow porous structure and the enhanced conductivity of residual carbon, the rate performance delivers excellent reversible capacity of 232.78 mA h g(-1) at a high current rate of 3.2 A g(-1). The recycled morphology could remain the original structure, further indicating that the microcubes are resistant to collapse and more suitable for lithium-ion batteries storage materials. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：97 / 102
页数：6
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