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BASIC EQUATIONS FOR THERMO-ELECTROCHEMISTRYAND THE ENTROPY CHANGE OF THE STANDARDHYDROGEN ELECTRODE REACTION 被引量:2
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作者 FANG Zheng, ZHANG Hengzhong, ZHANG Pingming, HUANG Shengtang,GUO Li and HU Guoqiang(Department of Chemistry, Central South University of Technology, Changsha 410O83, China) 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1996年第3期189-192,共4页
A set of thermo-electrochemical (TEC) equations for the cell and half-cell reactions has been derived. Is is shown that the difference between the enthalpy change determined by TEC technology and the one calculated wi... A set of thermo-electrochemical (TEC) equations for the cell and half-cell reactions has been derived. Is is shown that the difference between the enthalpy change determined by TEC technology and the one calculated with the current thermodynamic data of ions of any half-cell reaction in electochemical systems is coastant. The absolute entrupy change of the standard hydrogen electrode reaction was determined to be 85.2 J.K-1 .mol-1 at room temperature: 展开更多
关键词 thermo-electrochemistry absolute entropy standard hydrogen electrode
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Fe(CN)_6^(3-)/Fe(CN)_6^(4-)体系阳极过程的电化学Peltier热
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作者 杨中发 方正 +1 位作者 王少芬 张正华 《中南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2011年第2期312-316,共5页
采用热电化学方法测定电极反应电化学Peltier热。实验中将高灵敏度热敏电阻紧贴于工作电极表面,结合SRC-100溶解-反应量热仪与电化学工作站组装成高精度热电化学测试系统,其控温精度达±0.001 K。运用该测试系统分别对5个不同浓度... 采用热电化学方法测定电极反应电化学Peltier热。实验中将高灵敏度热敏电阻紧贴于工作电极表面,结合SRC-100溶解-反应量热仪与电化学工作站组装成高精度热电化学测试系统,其控温精度达±0.001 K。运用该测试系统分别对5个不同浓度等物质的量比的Fe(CN)63-/Fe(CN)64-体系阳极过程进行恒电流极化,得到该电极反应电极电势和温度变化与时间的关系曲线,运用热电化学方程,得到298.15K时Fe(CN)63-/Fe(CN)64-体系阳极过程电化学Peltier热,分别为41.51 kJ/mol(0.075 mol/L),43.48 kJ/mol(0.10 mol/L),46.95 kJ/mol(0.15 mol/L),50.77 kJ/mol(0.20 mol/L)和54.81 kJ/mol(0.25 mol/L),由此获得该温度下的标准氢电极反应在绝对标度下的熵变。 展开更多
关键词 热电化学 Peltier热 标准氢电极 Fe(CN)63-/Fe(CN)64-体系
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