Design and synthesis of Ni-MOF/CNT composites and rGO/carbon nitride composites for an asymmetric supercapacitor with high energy and power density | |
Department | 固体润滑国家重点实验室 |
Wen P(文平)1; Gong PW(公培伟)1,2; Sun JF(孙金凤)1,2; Wang JQ(王金清)1; Yang SR(杨生荣)1; Wang JQ(王金清) | |
2015 | |
Source Publication | Journal of Materials Chemistry A |
ISSN | 2050-7488 |
Volume | 3Issue:26Pages:13874-13883 |
Abstract | Currently, metal–organic frameworks (MOFs) have been attracting great interest as a new kind of electrode material for energy storage devices, because their porous skeleton would benefit the access and transport of electrolytes, and the exposure of metal ions can offer more active sites to electrolytes. In this study, we have successfully fabricated nickel metal–organic framework/carbon nanotube (Ni-MOF/CNT) composites, which show excellent electrochemical performance due to the synergistic effects of the Ni-MOF specific structure and CNTs with high conductivity, achieving a high specific capacitance of 1765 F g−1 at a current density of 0.5 A g−1. To further explore the capacitive performance of the composite electrode, an asymmetric supercapacitor device using Ni-MOF/CNTs as the positive electrode and reduced graphene oxide/graphitic carbon nitride (rGO/g-C3N4) as the negative electrode was fabricated, and this device could be operated in a working voltage range of 0–1.6 V based on a complementary potential window in 6 M KOH aqueous electrolyte, delivering a high energy density of 36.6 W h kg−1 at a power density of 480 W kg−1. Moreover, this asymmetric supercapacitor revealed an excellent cycle life along with 95% specific capacitance retention after 5000 consecutive charge–discharge tests. These outstanding performances would make MOFs become one of the most promising candidates for the future high energy storage systems. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c5ta02461g |
Indexed By | SCI |
If | 7.443 |
Language | 英语 |
Funding Project | 聚合物摩擦学组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/18322 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang JQ(王金清) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China |
Recommended Citation GB/T 7714 | Wen P,Gong PW,Sun JF,et al. Design and synthesis of Ni-MOF/CNT composites and rGO/carbon nitride composites for an asymmetric supercapacitor with high energy and power density[J]. Journal of Materials Chemistry A,2015,3(26):13874-13883. |
APA | Wen P,Gong PW,Sun JF,Wang JQ,Yang SR,&王金清.(2015).Design and synthesis of Ni-MOF/CNT composites and rGO/carbon nitride composites for an asymmetric supercapacitor with high energy and power density.Journal of Materials Chemistry A,3(26),13874-13883. |
MLA | Wen P,et al."Design and synthesis of Ni-MOF/CNT composites and rGO/carbon nitride composites for an asymmetric supercapacitor with high energy and power density".Journal of Materials Chemistry A 3.26(2015):13874-13883. |
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