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

页码：459 / 463

页数：5

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