Electrochemical behavior of NiWO4 modified by ultrasonic and laser irradiation

被引：2
|
作者：
Starchuk, Yurii [1 ,2 ]
Budzulyak, Ivan [1 ]
Popovych, Olha [1 ]
Rachiy, Bogdan [1 ]
Yablon, Lyubov [1 ]
机构：
[1] Vasyl Stefanyk Pre?arpathian Natl Univ, Phys & Technol Dept, Ivano Frankivsk, Ukraine
[2] Vasyl Stefanyk Precarpathian Natl Univ, Phys & Technol Dept, UA-76018 Ivano Frankivsk, Ukraine
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2023年 / 31卷 / 05期
关键词：
Nickel tungstate; laser irradiation; ultrasonic modification; specific capacitance;
D O I：
10.1080/1536383X.2023.2179039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, NiWO4 was prepared by co-precipitation and modified by ultrasonic and laser irradiation. Its electrochemical properties were investigated by potentiodynamic, galvanostatic and impedance spectroscopy methods. The results show that NiWO4 ultrasonic-modified and exposed to laser irradiation for 420 s has the highest capacitance of 520 F/g at a discharge current of 1 mA. This capacitance value is 2.5 times higher than for NiWO4 ultrasonic-modified and 3.4 times higher than for NiWO4 obtained by co-deposition. The capacitance enhancement of NiWO4 modified by ultrasonic and laser irradiation is the result of stimulation of fast redox reactions, which is confirmed by impedance studies.
引用
收藏
页码：459 / 463
页数：5
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