The interfacial electronic engineering in polyhedral MOF derived Co-doped NiSe2 composite for upgrading rate and longevity performance of aqueous energy storage
Transition metal selenides have sparked widespread interest in energy-related applications due to their unique physicochemical properties. Herein, polyhedral Co- doped NiSe2 (Co-NiSe2) is designed and built using MOFs as a template. The porous and electronic connected Co-NiSe2/rGO, which inherits th...
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Published in | Journal of alloys and compounds Vol. 897; p. 163187 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Lausanne
Elsevier B.V
15.03.2022
Elsevier BV |
Subjects | |
Online Access | Get full text |
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Summary: | Transition metal selenides have sparked widespread interest in energy-related applications due to their unique physicochemical properties. Herein, polyhedral Co- doped NiSe2 (Co-NiSe2) is designed and built using MOFs as a template. The porous and electronic connected Co-NiSe2/rGO, which inherits the advantages of MOFs and has rGO uniformly covered, shows potential in the application of aqueous supercapacitors (SCs). The Co-NiSe2/rGO electrode for SCs has a high reversible capacity of 648 F g−1 at a current density of 10 A g−1 after 1500 cycles of continuous discharging/charging. In-situ Raman spectral analysis is also used to investigate the electrochemical mechanism of Co-NiSe2/rGO in the application of SCs. The concept of building electronic interconnected porous structured transition metal selenides can be expanded into a common methodology for advanced electrode in SCs.
The electronic-connected porous Co-NiSe2/rGO shows the improved performance in aqueous supercapacitors. [Display omitted]
•MOF derived polyhedral Co-doped NiSe2 with rGO covered is synthesized.•The electrode has the electronic interconnected porous structure.•The exquisite boundary architecture is beneficial to improving the kinetics.•The electrode exhibits high-rate performance in aqueous energy storage. |
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ISSN: | 0925-8388 1873-4669 |
DOI: | 10.1016/j.jallcom.2021.163187 |