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- W3202002613 endingPage "162205" @default.
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- W3202002613 abstract "• Porous hexagonal cobalt pyrovanadate (Co 2 V 2 O 7 ) nanoplatelet was primarily fabricated by a green ionothermal method. • Deep eutectic solvent (DES) of urea/choline chloride was used as reaction media. • The porous hexagonal structure of Co 2 V 2 O 7 showed high specific capacitance. • Environment-friendly, non-toxic and low-cost. Cobalt vanadate is a kind of promising electrode material for pseudo-supercapacitors because of their higher electrical conductivity, better electrochemical activity, and prominent specific capacitance than single metal oxides. In this paper, cobalt pyrovanadate (Co 2 V 2 O 7 ) was primarily fabricated by a facile environment-friendly ionothermal method using a green deep eutectic solvent (DES) and followed the heat treatment in the air. The eutectic mixture discussed here was consisted of a hydrogen bond donor (urea) and acceptor (ChCl) in a 2:1 molar ratio. The as-prepared Co 2 V 2 O 7 was porous hexagonal nanoplatelets, and its electrochemical performances were characterized by cycle voltammetry, galvanostatic charge/discharge and cycling stability tests in a three-electrode system with 2 M KOH electrolyte solution. The specific capacitance of the synthesized Co 2 V 2 O 7 revealed 304 F g −1 at the current density of 1 A g −1 . Surprisingly, it remained an excellent cycle performance with 103% in 100 charge/discharge cycles. Therefore, we have successfully presented a deep eutectic solvent derived routine to prepare porous hexagonal Co 2 V 2 O 7 nanoplatelets electrode material." @default.
- W3202002613 created "2021-10-11" @default.
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- W3202002613 date "2022-02-01" @default.
- W3202002613 modified "2023-10-14" @default.
- W3202002613 title "A facile green synthesis of porous hexagonal cobalt pyrovanadate electrode for supercapacitors by deep eutectic solvent" @default.
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- W3202002613 doi "https://doi.org/10.1016/j.jallcom.2021.162205" @default.
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