{"title":"Gibbs free energy of formation of Cu2In2O5 ternary phase determined by E.M.F. method","authors":"D. Jendrzejczyk-Handzlik, P. Handzlik","doi":"10.2298/jmmb220614030j","DOIUrl":null,"url":null,"abstract":"Employing electrochemical cells with the solid zirconia electrolyte: Cu2O,CuO/O2-/air Cu2In2O5, In2O3,Cu2O/O2-/air In,In2O3/O2-/Ni, NiO Gibbs free energy of formation of solid Cu2In2O5 phase as well as that for In2O3 and CuO oxides was determined in the temperature range from 973 K to 1372 K. The results obtained in this study were used to derive Gibbs free energy change of the reaction of formation of the ternary compound from respective oxides: 2CuO + In2O3 = Cu2In2O5 which is equal to: ?Gf0,Cu2In2O5 = 33905 ? 41.50T (?3600) Jmol?1. Standard enthalpy of formation from elements ?H0f,298 and standard enthalpy ?S0298 derived for Cu2In2O5 phase by Second Law sigma plot are -1211 (?15) kJ mol-1 and 493.20 (?10) J (K-1 mol-1). Oxygen potential diagrams for the Cu-In-O system are also given at two temperatures.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"374 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mining and Metallurgy Section B-Metallurgy","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.2298/jmmb220614030j","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
Employing electrochemical cells with the solid zirconia electrolyte: Cu2O,CuO/O2-/air Cu2In2O5, In2O3,Cu2O/O2-/air In,In2O3/O2-/Ni, NiO Gibbs free energy of formation of solid Cu2In2O5 phase as well as that for In2O3 and CuO oxides was determined in the temperature range from 973 K to 1372 K. The results obtained in this study were used to derive Gibbs free energy change of the reaction of formation of the ternary compound from respective oxides: 2CuO + In2O3 = Cu2In2O5 which is equal to: ?Gf0,Cu2In2O5 = 33905 ? 41.50T (?3600) Jmol?1. Standard enthalpy of formation from elements ?H0f,298 and standard enthalpy ?S0298 derived for Cu2In2O5 phase by Second Law sigma plot are -1211 (?15) kJ mol-1 and 493.20 (?10) J (K-1 mol-1). Oxygen potential diagrams for the Cu-In-O system are also given at two temperatures.
期刊介绍：
University of Belgrade, Technical Faculty in Bor, has been publishing the journal called Journal of Mining and Metallurgy since 1965 and in 1997 it was divided in two independent journals dealing with mining and metallurgy separately. Since 2009 Journal of Mining and Metallurgy, Section B: Metallurgy has been accepted in Science Citation Index Expanded.
Journal of Mining and Metallurgy, Section B: Metallurgy presents an international medium for the publication of contributions on original research which reflect the new progresses in theory and practice of metallurgy. The Journal covers the latest research in all aspects of metallurgy including hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, solidification, mechanical working, solid state reactions, materials processing, surface treatment and relationships among processing, structure, and properties of materials.
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
