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Thermionic Emission Data on the Electronic Work Function of LnBr3 (Ln = La, Ce, Er, Ho, Lu) Crystals

  • Colloid Chemistry and Electrochemistry
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Abstract

A methodology based on measurements of ion-molecular equilibria using high-temperature mass spectrometry was proposed for determining the electronic work function ϕe of congruently subliming ionic crystals. Using the enthalpies of sublimation determined experimentally for the LnBr4− ion and LnBr3 molecule, the effective values of ϕe were for the first time obtained from the thermochemical cycles of LaBr3, CeBr3, ErBr3, HoBr3, and LuBr3 crystals. The resulting values were (±0.20 eV) 2.54, 3.35, 3.04, 2.85, and 3.05, respectively.

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Authors and Affiliations

  1. Ivanovo State University for Chemistry and Technology, Ivanovo, Russia

    M. F. Butman, L. S. Kudin, A. E. Grishin, A. S. Kryuchkov & D. N. Sergeev

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  1. M. F. Butman
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  2. L. S. Kudin
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  3. A. E. Grishin
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  4. A. S. Kryuchkov
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  5. D. N. Sergeev
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Correspondence to M. F. Butman.

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Butman, M.F., Kudin, L.S., Grishin, A.E. et al. Thermionic Emission Data on the Electronic Work Function of LnBr3 (Ln = La, Ce, Er, Ho, Lu) Crystals. Russ. J. Phys. Chem. 82, 459–464 (2008). https://doi.org/10.1134/S0036024408030242

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  • DOI: https://doi.org/10.1134/S0036024408030242

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