Electrode Materials of Cobaltous Fluoride for Supercapacitor and Electrocatalysis Applications.
Chem Asian J
; 18(6): e202201283, 2023 Mar 14.
Article
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| ID: mdl-36782100
ABSTRACT
Herein, CoF2 was synthesized by a solvothermal method. The characterization results of the phase and morphology of the sample show that it was successfully synthesized and its morphology is composed of micron particles with uneven size and shape. The electrochemical test results of SCs in different electrolytes show that CoF2 has electrochemical activity only in alkaline electrolytes. Notably, the electrochemical behavior of CoF2 in LiOH solution is different from that in other alkaline solutions in that charge-discharge curve has a quasi-isosceles triangle shape and the CV curve has no obvious redox peak. That is, it has pseudocapacitance behavior in LiOH. Furthermore, CoF2 as catalyst for HER requires an overpotential of only 168â
mV to obtain current density of 10â
mA cm-2 and a Tafel slope of 116â
mV dec-1 in 1â
M KOH solution. This research provides a novel way to explore excellent performance electrode materials for SC and HER.
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Chem Asian J
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2023
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