Self-supported 3D layered zinc/nickel metal-organic-framework with enhanced performance for supercapacitors

被引：65

作者：

Zhang, Xiaolong ^{[1
]}

Sui, Yanwei ^{[1
]}

Wei, Fuxiang ^{[1
]}

Qi, Jiqiu ^{[1
]}

Meng, Qingkun ^{[1
]}

Ren, Yaojian ^{[1
]}

He, Yezeng ^{[1
,2
]}

机构：

[1] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Jiangsu, Peoples R China

[2] Jiangsu Prov Engn Lab High Efficient Energy Stora, Xuzhou, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 19期

关键词：

ELECTRODE MATERIAL; ASYMMETRIC SUPERCAPACITORS; GRAPHENE NANOSHEETS; HIGH CAPACITANCE; HYBRID; NANOHYBRID; CARBON; ELECTROCATALYST; NANOPOWDERS; FABRICATION;

D O I：

10.1007/s10854-019-02163-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Metal-organic frameworks (MOFs) have been used as a novel electrode material in terms of energy storage and conversion, owning to their stable porous architectures and exceptionally specific surface area. In this study, we have synthesized Ni-MOF and bimetallic Zn/Ni-MOF via a facile one-step hydrothermal method. Comparing with the pure Ni-MOF, the as-prepared Zn/Ni-MOF exhibits a superior energy storage capacity (878 F g(-1) at 1 A g(-1)), better rate performance (536 F g(-1) at 10 A g(-1)) and cycling stability (72% retention over 2500 charge/discharge cycles). In addition, the assembled asymmetric supercapacitor based on the Zn/Ni-MOF-1/NF//RGO shows a remarkable supercapacitive performance with the energy density of 30.51 Wh kg(-1) at the power density of 800 W kg(-1), and a superior cycling stability of 80.3% retention over 5000 cycles.

引用

页码：18101 / 18110

页数：10

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