Über Elektrizitätsleitung in festen kristallisierten Verbindungen. Erste Mitteilung: Nachweis der exakten Gültigkeit des Faraday schen Gesetzes bei der Elektrolyse fester Schwermetallsalze

Tubandt, C.; Eggert, Sophie

doi:10.1002/zaac.19201100114

Cited by 104 publications

(20 citation statements)

References 7 publications

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“…It has been known for a long time that the transport number of the bromide ions in lead bromide is unity up to the melting point (2). In previous papers (3,4> we reported ionic conductivity results on pure and doped lead-bromide single crystals.…”

Section: Introductionmentioning

confidence: 82%

“…Together with structural considerations (3) we omitted the occurrence of Frenkel defects and introduced the following electroneutrality conditions [Meid + 2[%J = CW (1) and ~MehJ + PLI = W6J. (2) Me;, is a monovalent cation at a lead ion site (effective charge -) and Meib is a trivalent cation at a lead ion site (effective charge +). Square brackets denote concentrations.…”

Section: Introductionmentioning

confidence: 99%

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The ionic conductivity of pure and doped lead bromide single crystals

Schoonman

1972

Journal of Solid State Chemistry

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The ionic conductivity data of pure and doped lead bromide are used to evaluate the defect parameters: entropy (d&J and enthalpy (AH,) of motion of an anion vacancy, entropy (AS,) and enthalpy (AH,) of formation of a Schottky defect trio. The expression for the mobility of the bromide ion vacancies was recalculated from the conductivity of different thallium (I) bromide-doped crystals. The experimental expression is From conductivity isotherms (U/Q vs dopant concentration) the experimental relation for the intrinsic bromide ion-vacancy concentration was calculated to be wJO = (21 f 2) exp ( -o'57 iy '") mole fraction.A comparison between the ionic conductivity and a self-diffusion experiment shows that in the conductivity experiments the displacement of the bromide ion vacancies is measured.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

The ionic conductivity of pure and doped lead bromide single crystals

Schoonman

1972

Journal of Solid State Chemistry

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“…Lead Sulfide Solid lead chloride, pure or doped with KC1, is known to be an anionic conductor (34)(35)(36). Thus, the standard free energy of formation of lead sulfide should be obtainable from a cell analogous to cell (IX),…”

Section: Standard Molar Free Energy Of Formation Ofmentioning

confidence: 99%

Measurements on Galvanic Cells Involving Solid Electrolytes

Kiukkola¹,

Wagner²

1957

J. Electrochem. Soc.

637

221

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Electromotive force measurements on galvanic cells involving solid electrolytes have been made in order to obtain the standard molar free energy of formation of CoO, NiO, Cu~O, AgeS, Ag~Se, PbS, and several phases of the system Ag-Te at elevated temperatures.Haber and Tolloczko (1), Katayama (2), Reinhold (3, 4), Treadwell, Ammann, and Zfirrer (5), Croatto and Bruno (6), Rose, Davis, and Ellingham (7), Sator (8), and others have shown that emf measurements on galvanic cells involving solid electrolytes may yield valuable thermodynamic data. The following investigations have been made in order to show new potentialities of emf measurements on galvanic cells involving solid electrolytes for the determination of the standard molar free energy of formation of oxides, sulfides, selenides, and tellurides at elevated temperatures.

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“…This explains the controversial results obtained in measuring the melting point of the product (11,12,13). This controversy is not eliminated by data obtained by various workers who worked with purified products and knew that decomposition occurs (14), and by those who worked under inert atmospheres (15,16) to eliminate the action of water vapor and oxygen. Similarly, measurements of vapor pressures of lead di-iodide a t various temperatures seem to have led so far to controversial statements (17,18) mainly because of misinterpretations of the experimental values and failure to analyze the final products.…”

Section: Discussionmentioning

confidence: 99%