V. V. Chernyavina, A. G. Berezhnaya, Ya. A. Dyshlovaya
{"title":"Electrochemical Performance of MnO2/C Electrodes in Neutral Aqueous Electrolytes","authors":"V. V. Chernyavina, A. G. Berezhnaya, Ya. A. Dyshlovaya","doi":"10.1134/S002016852470136X","DOIUrl":null,"url":null,"abstract":"<p>The surface of carbon electrodes has been modified by manganese oxide nanoparticles via anodic electrochemical deposition. The structural properties and elemental composition of the resultant MnO<sub>2</sub>/C materials have been studied by energy dispersive X-ray microanalysis and transmission electron microscopy. Electrochemical characteristics of the electrodes have been investigated by cyclic voltammetry, galvanostatic charge–discharge measurements, and impedance spectroscopy. We have compared the specific capacitance of the MnO<sub>2</sub>/C electrodes in 0.5 M Li<sub>2</sub>SO<sub>4</sub>, Na<sub>2</sub>SO<sub>4</sub>, and K<sub>2</sub>SO<sub>4</sub> solutions. The materials studied have been shown to have the highest specific capacitance in the sodium sulfate solution.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"60 9","pages":"1095 - 1100"},"PeriodicalIF":0.9000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S002016852470136X","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The surface of carbon electrodes has been modified by manganese oxide nanoparticles via anodic electrochemical deposition. The structural properties and elemental composition of the resultant MnO2/C materials have been studied by energy dispersive X-ray microanalysis and transmission electron microscopy. Electrochemical characteristics of the electrodes have been investigated by cyclic voltammetry, galvanostatic charge–discharge measurements, and impedance spectroscopy. We have compared the specific capacitance of the MnO2/C electrodes in 0.5 M Li2SO4, Na2SO4, and K2SO4 solutions. The materials studied have been shown to have the highest specific capacitance in the sodium sulfate solution.
期刊介绍：
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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