{"title":"Efficient synthesis and electrochemical profiling of nickel tungstate for supercapacitor application","authors":"S. Ramamoorthy , D. Senthil Kumar","doi":"10.1016/j.chphi.2024.100680","DOIUrl":null,"url":null,"abstract":"<div><p>The Nickel Tungstate nanomaterial was synthesized by the green synthesis method. The powder x-ray diffraction analysis was carried out for Nickel Tungstate and its crystalline nature was identified. The optical properties of the Nickel Tungstate were studied. The surface morphology of the Nickel Tungstate was tested using a scanning electron microscope (SEM). The surface area analysis was obtained by BET analysis. X-ray photoelectron Spectroscopy was used to identify the Binding energy of the materials. The electrochemical properties were investigated using Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), and Charge-Discharge (GCD). The highest cyclic stability for 10,000 charge and discharge cycle was reported in this paper with good retention at 98 %. NiWO<sub>4</sub> NPs electrode material shows high specific capacitance values of 425 F g<sup>−1</sup>, 300 F g<sup>−1</sup> and 605 F g<sup>−1</sup> at a current density of 3 mA/g for pH5, pH6 and pH7 respectively.</p></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"9 ","pages":"Article 100680"},"PeriodicalIF":3.8000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266702242400224X/pdfft?md5=b9f5ca972baffc1e65baae01dfca5e09&pid=1-s2.0-S266702242400224X-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics Impact","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S266702242400224X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The Nickel Tungstate nanomaterial was synthesized by the green synthesis method. The powder x-ray diffraction analysis was carried out for Nickel Tungstate and its crystalline nature was identified. The optical properties of the Nickel Tungstate were studied. The surface morphology of the Nickel Tungstate was tested using a scanning electron microscope (SEM). The surface area analysis was obtained by BET analysis. X-ray photoelectron Spectroscopy was used to identify the Binding energy of the materials. The electrochemical properties were investigated using Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), and Charge-Discharge (GCD). The highest cyclic stability for 10,000 charge and discharge cycle was reported in this paper with good retention at 98 %. NiWO4 NPs electrode material shows high specific capacitance values of 425 F g−1, 300 F g−1 and 605 F g−1 at a current density of 3 mA/g for pH5, pH6 and pH7 respectively.
采用绿色合成法合成了钨酸镍纳米材料。对钨酸镍进行了粉末 X 射线衍射分析,确定了其晶体性质。研究了钨酸镍的光学性质。使用扫描电子显微镜(SEM)测试了钨酸镍的表面形态。表面积分析是通过 BET 分析获得的。利用 X 射线光电子能谱确定了材料的结合能。使用循环伏安法(CV)、电化学阻抗谱法(EIS)和充电-放电法(GCD)对电化学特性进行了研究。本文报告了 10,000 次充放电循环的最高循环稳定性,保持率高达 98%。在 3 mA/g 的电流密度下,NiWO4 NPs 电极材料在 pH5、pH6 和 pH7 条件下分别显示出 425 F g-1、300 F g-1 和 605 F g-1 的高比电容值。