Hierarchical metal-organic framework derived nitrogen-doped porous carbon/graphene composite for high performance supercapacitors

被引：47

作者：

Xin, Lijun ^{[1
,2
]}

Liu, Qi ^{[1
,2
]}

Liu, Jingyuan ^{[1
,2
]}

Chen, Rongrong ^{[1
,3
]}

Li, Rumin ^{[1
,2
]}

Li, Zhanshuang ^{[1
,2
]}

Wang, Jun ^{[1
,3
]}

机构：

[1] Harbin Engn Univ, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Engn Univ, Sch Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China

[3] Harbin Engn Univ, Inst Adv Marine Mat, Harbin 150001, Heilongjiang, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2017年 / 248卷

基金：

中国国家自然科学基金; 对外科技合作项目（国际科技项目）;

关键词：

Metal-organic frameworks; High nitrogen-doped porous carbon; Symmetric supercapacitor; ZEOLITIC IMIDAZOLATE FRAMEWORK; ACTIVATED CARBONS; NANOPOROUS CARBON; ANODE MATERIAL; GRAPHENE; CAPACITANCE; NANOPARTICLES; POLYPYRROLE; ELECTRODES; NANOSHEETS;

D O I：

10.1016/j.electacta.2017.07.138

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanocomposites of graphene and N-doped porous carbon (HPNCs/rGO-800) are prepared via facile carbonization of Zn-metal-organic frameworks (ZIF-8) by controlling appropriate temperature. In comparison with the single N-doped porous carbon (HPNCs-800) which are made from the pure ZIF-8, HPNCs/rGO-800 reduce the agglomeration of ZIF-8 and promote electrical conductivity. In this work, HPNCs/rGO-800 materials exhibit excellent electrochemical performances with a high specific capacitance of 245 F g(-1) in 6 M KOH electrolyte at a current density of 1 A g(-1). Moreover, HPNCs/rGO-800//HPNCs/rGO-800 symmetric supercapacitor reaches a superior energy density of 18.0 Wh kg(-1) at a power density of 475 W kg(-1) in the wide voltage region of 0-1.8 V, and a superb cycle stability (90% capacitance retention after 10,000 cycles). Such outstanding electrochemical behavior shows that the device is a promising practical energy-storage facility. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：215 / 224

页数：10

共 57 条

[41] Energy storage applications of activated carbons: supercapacitors and hydrogen storage [J].