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3D N-doped carbon continuous network supported P-doped ZnCo2O4 nanosheets with rich oxygen vacancies for high-performance asymmetric pseudocapacitor.
- Source :
-
Journal of Alloys & Compounds . Apr2021, Vol. 861, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- N-doped carbon supported MOFs derived P-doped ZnCo 2 O 4 nanosheets (ZCP/NC) with rich oxygen vacancy are rationally designed and synthesized via a chemical heat treatment strategy. In the unique structure, N-doped carbon as a skeleton can provide an electrically conductive 3D continuous network with large surface area for the growth of active materials. P-doped ZnCo 2 O 4 nanosheets are rich in oxygen vacancies and have a large exposure area, which can enhance the charge storage capabilities. Electrochemical measurement displayed that the novel electrodes can deliver a highest specific capacitance of 1581.5 F g−1 at 1 A g−1. An asymmetric supercapacitor (ASC) fabricated by ZCP/NC and activated carbon can reach a high energy density of 47.8 Wh kg−1 at power density of 800 W kg−1. Besides, The ASC also exhibits a cyclic retention of 90.6% for 5000 cycles. The reasons for excellent properties of ZCP/NC are discussed in detail. ga1 3D N-doped carbon supported MOFs derived P-doped ZnCo 2 O 4 nanosheets with rich oxygen vacancies showed a superior electrochemical performance. • 3D N-doped carbon supported MOFs derived P-doped ZnCo 2 O 4 nanosheets are successfully prepared. • P-doped ZnCo 2 O 4 nanosheets are rich in oxygen vacancies can enhance the charge storage capabilities. • The unique electrode displays a high capacitance of 1581.5 F g−1. • The hybrid supercapacitor achieves a high energy density of 47.8 Wh L−1. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NITROGEN
*SOCIAL networks
*ENERGY density
*ACTIVATED carbon
*POWER density
*OXYGEN
Subjects
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 861
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 148728923
- Full Text :
- https://doi.org/10.1016/j.jallcom.2020.158544