A flexible ligand-based wavy layered metal-organic framework for lithium-ion storage

被引：102
作者：
An, Tiance [1 ]
Wang, Yuhang [1 ]
Tang, Jing [1 ]
Wang, Yang [1 ]
Zhang, Lijuan [1 ]
Zheng, Gengfeng [1 ]
机构：
[1] Fudan Univ, Dept Chem, Adv Mat Lab, Collaborat Innovat Ctr Chem Energy Mat, Shanghai 200433, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2015年 / 445卷
关键词：
Metal-organic framework; Azolate ligand; Structural flexibility; Li-ion battery; Coulombic efficiency; COORDINATION POLYMERS; ANODE; NANOPARTICLES; PERFORMANCE; PROPERTY; SORPTION; DESIGN;
D O I：
10.1016/j.jcis.2015.01.012
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：
A substantial challenge for direct utilization of metal-organic frameworks (MOFs) as lithium-ion battery anodes is to maintain the rigid MOF structure during lithiation/delithiation cycles. In this work, we developed a flexible, wavy layered nickel-based MOF (C20H24Cl2N8Ni, designated as Ni-Me(4)bpz) by a solvo-thermal approach of 3,3',5,5'-tetramethy1-4,4'-bipyrazole (H(2)Me(4)bpz) with nickel(11) chloride hexahydrate. The obtained MOF materials (Ni-Me(4)bpz) with metal azolate coordination mode provide 2-dimensional layered structure for Li+. intercalation/extraction, and the H(2)Me(4)bpz ligands allow for flexible rotation feature and structural stability. Lithium-ion battery anodes made of the Ni-Me(4)bpz material demonstrate excellent specific capacity and cycling performance, and the crystal structure is well preserved after the electrochemical tests, suggesting the potential of developing flexible layered MOFs for efficient and stable electrochemical storage. (C) 2015 Elsevier Inc. All rights reserved.
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收藏
页码：320 / 325
页数：6
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