Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 825, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.154069
Keywords
Supercapacitor; Metal-organic frameworks; Electronic materials; Ultrathin nanosheets
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Funding
- Fundamental Research Funds for the Central Universities [2019XKQYMS01]
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In this work, the lamellae-like Ni/Co metal-organic framework (Ni/Co-MOF) is synthesized via a facile one-step hydrothermal process. By combining the advantages of mixed-metallic components and unique structures, the fabricated Ni/Co-MOF electrode exhibits a superior specific capacity (568 C g(-1) at 1 A g(-1)), good rate performance (80.1% retention at 10 A g(-1)) and high cycling stability (75.5% retention over 3000 charge/discharge cycles). Besides, the assembling asymmetric supercapacitor based on the Ni/Co-MOF and reduced graphene oxide (RGO) exhibits a high energy density of 42.24 Wh kg(-1) at the power density of 800 W kg(-1), and excellent electrochemical cycling stability of 82.6% retention of original capacitance over 6000 charge/discharge cycles. (C) 2020 Elsevier B.V. All rights reserved.
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