V. Kepenienė, R. Stagniūnaitė, Daina Upskuvienė, L. Tamašauskaitė-Tamašiūnaitė, V. Pakštas, Audrius Drabavičius, M. Andrulevičius, E. Norkus
{"title":"Electrocatalytic activity of AuCeO2/C towards ethylene glycol oxidation and oxygen reduction reactions","authors":"V. Kepenienė, R. Stagniūnaitė, Daina Upskuvienė, L. Tamašauskaitė-Tamašiūnaitė, V. Pakštas, Audrius Drabavičius, M. Andrulevičius, E. Norkus","doi":"10.6001/chemija.v31i2.4217","DOIUrl":null,"url":null,"abstract":"2 Institute of Materials Science of Kaunas University of Technology, 59 Baršausko Street, 50131 Kaunas, Lithuania AuCeO2/C and Au/C catalysts were obtained by adsorption of AuNPs on the CeO2/C and pure carbon (C) substrates from an Au colloidal solution. It has been found that AuNPs of ca. 50 nm in size were adsorbed on the surfaces of CeO2/C and C; however, electrocatalytic activity of the investigated AuCeO2/C and Au/C catalysts was different. Ethylene glycol oxidation current density values are ca. 3 times higher on the AuCeO2/C catalyst as compared to those of the bare Au/C catalyst. Moreover, the AuCeO2/C catalyst showed more positive onset potentials, as well as higher current in the mixed-kinetic-diffusion region towards the oxygen reduction reaction in an alkaline medium compared to that of the Au/C catalyst.","PeriodicalId":9720,"journal":{"name":"Chemija","volume":" ","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2020-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemija","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.6001/chemija.v31i2.4217","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 3
Abstract
2 Institute of Materials Science of Kaunas University of Technology, 59 Baršausko Street, 50131 Kaunas, Lithuania AuCeO2/C and Au/C catalysts were obtained by adsorption of AuNPs on the CeO2/C and pure carbon (C) substrates from an Au colloidal solution. It has been found that AuNPs of ca. 50 nm in size were adsorbed on the surfaces of CeO2/C and C; however, electrocatalytic activity of the investigated AuCeO2/C and Au/C catalysts was different. Ethylene glycol oxidation current density values are ca. 3 times higher on the AuCeO2/C catalyst as compared to those of the bare Au/C catalyst. Moreover, the AuCeO2/C catalyst showed more positive onset potentials, as well as higher current in the mixed-kinetic-diffusion region towards the oxygen reduction reaction in an alkaline medium compared to that of the Au/C catalyst.
期刊介绍：
Chemija publishes original research articles and reviews from all branches of modern chemistry, including physical, inorganic, analytical, organic, polymer chemistry, electrochemistry, and multidisciplinary approaches.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
