Construction of Ni-Co-Mn layered double hydroxide nanoflakes assembled hollow nanocages from bimetallic imidazolate frameworks for supercapacitors
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211 (China)
- Department of Physical Chemistry School of Metallurgical and Ecological Engineering, University of Science & Technology Beijing No. 30, Xueyuan Road, Haidian District, Beijing 100083 (China)
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Beijing 100190 (China)
- State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021 (China)
Highlights: • Bimetallic Co-Mn ZIF is successfully prepared. • N-Co-Mn LDH nanoflakes assembled hollow nanocage is constructed by a MOF templating method. • The N-Co-Mn LDH exhibits excellent pseudocapacitive performance. - Abstract: Layered double hydroxides (LDHs) with 3-dimentional (3D) hollow nanoarchitetures are highly desirable for energy related applications. In this study, Ni-Co-Mn LDH nanoflakes assembled hollow nanocages are constructed from bimetallic imidazolate framworks precursors. Benefiting from the 3D hierarchical porous strcuture and composition, the as-synthesized ternary Ni-Co-Mn LDH hollow nanocage, as a electrode for supercapacitor, demonstrates a remarkable electrochemical performance with a high specific capacitance of 2012.5 F g{sup −1} at 1 A g{sup −1} and a good rate capacity of 75.0% retention at 10 A g{sup −1}, significantly outperforming binary Ni-Co LDH (1266.2 F g{sup −1} at 1 A g{sup −1}, 41.8% retention at 10 A g{sup −1}). This work demonstrates the construction of 3D hollow nanostructured LDH with multicomponent compositions for the first time, and can be simply extended to construct other hollow structured electrode materials for energy storage devices.
- OSTI ID:
- 22805235
- Journal Information:
- Materials Research Bulletin, Vol. 106; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Controllable synthesis of mesoporous Co{sub 3}O{sub 4} nanoflake array and its application for supercapacitor
Ni(OH){sub 2} nanoflakes electrodeposited on Ni foam-supported vertically oriented graphene nanosheets for application in asymmetric supercapacitors