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  Thermochemistry and Chemical Vapor Transport of In2M3O12 (M = Mo, W)

Steiner, U., Schmidt, M., & Schnelle, W. (2014). Thermochemistry and Chemical Vapor Transport of In2M3O12 (M = Mo, W). Zeitschrift für anorganische und allgemeine Chemie, 640(12-13), 2583-2594. doi:10.1002/zaac.201400354.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-9831-3 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-9832-1
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 Urheber:
Steiner, Udo1, Autor
Schmidt, Marcus2, Autor           
Schnelle, Walter3, Autor           
Affiliations:
1External Organizations, ou_persistent22              
2Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              
3Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              

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 Zusammenfassung: The standard entropy of compounds In2M3O12 (M = Mo, W) were determined to be S-298 degrees = 390 +/- 6 (M = Mo] and S-298 degrees = 404 +/- 6 J.mol(-1).K-1 (M = W). The entropies of formation from the binary oxides are Delta S-R,S-298 degrees = 52 J.mol(-1).K-1 (M = Mo] and Delta S-R,S-298 degrees = 72 J.mol(-1).K-1 (M = W). Both compounds possess positive enthalpies of formation from the oxides at 298 K and are entropically stabilized. Transition enthalpies of the monoclinic to orthorhombic phase transition were measured for In2M3O12 by differential scanning calorimetry. Crystals of In2M3O12 (size up to a few mm) were deposited by means of chemical vapor transport along a temperature gradient Delta T = 100 K using transport agent chlorine. Deposition rates are between 0.2 and about 15 mg.h(-1), depending on mean transport temperature and amount of chlorine. Experimental results were compared to predictions by means of thermodynamic modelling. A detailed analysis of the chemical vapor transport behavior was carried out regarding gaseous compounds involved in the transport process, dominant transport reactions and influence of moisture content.

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Sprache(n): eng - English
 Datum: 2014-09-302014-11-03
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000344378900029
DOI: 10.1002/zaac.201400354
 Art des Abschluß: -

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Titel: Zeitschrift für anorganische und allgemeine Chemie
  Andere : Journal of Inorganic and General Chemistry
  Andere : J. Inorg. Gen Chem.
  Kurztitel : Z. Anorg. Allg. Chem.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 640 (12-13) Artikelnummer: - Start- / Endseite: 2583 - 2594 Identifikator: ISSN: 0044-2313
CoNE: https://pure.mpg.de/cone/journals/resource/954925453895