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Exploring AgI-Based Superionic Conductors: A Study in Experimental Thermodynamics

This presentation by Fiseha Tesfaye at Aalto University delves into the experimental thermodynamics of AgI-based superionic conductors. It covers the conductivity of solid electrolytes, specifically AgI and RbAg4I5, and explores the working mechanism of a galvanic cell through the EMF technique. The study investigates multicomponent phases via thermodynamic analysis, including EMF and temperature measurements for systems such as Ag-Te and Ag-Bi-S. The presentation concludes with a discussion on phase transformation temperatures and future research directions.

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Exploring AgI-Based Superionic Conductors: A Study in Experimental Thermodynamics

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  1. Experimental Thermodynamics Using AgI-Based Superionic Conductors M.Sc.(Tech.) Fiseha Tesfaye, Prof. Pekka Taskinen Aalto University School of Chemical Technology Department of Materials Science and Engineering Metallurgical Thermodynamics and Modelling (TDM) 09.01.2012, University of Stellenbosch, Stellenbosch, South Africa

  2. Contents of this Presentation • Introduction • Conductivity of the Solid Electrolytes • AgI and RbAg4I5 Solid Electrolytes • Working Mechanism of a Galvanic Cell in the EMF-Technique • Thermodynamic Study of Multicomponent Phases by the EMF-Method • EMF- and Temperature-Measurments • Studied Systemes: Ag-Te and Ag-Bi-S • Analysis of Results • Phase Transformation Temperatures • Thermodynamic Functions • Summary • Publications and Future Work 1

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