Chemical Vapor Transport Reactions – Arguments for Choosing a Suitable Transport Agent

  • A variety of processes of crystal growth proceeds via the gas phase. If the initial solid material is volatilized in a heterogeneous reaction under presence of a gaseous reactant, the transport agent, the term Chemical Vapor Transport Reaction (CVT) is applied. Crystallization processes by CVT are known for both elements, intermetallics, binary and complex oxides, halides, chalcogenides, and pnictides. Even if the formation of volatile halides is a common feature of almost all vapor transport reactions, significant differences are there concerning the choice of a suitable transport agent depending on the nature of the initial solid phase. Actually, the appropriateness of transport agents for the respective transport reaction can be described in a thermodynamic way. Besides some basic principles for systematic evaluation more practical recommendations for suitable experimental conditions are given for CVT of different classes of inorganic materials.

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Metadaten
Author: Michael Binnewies, Marcus Schmidt, Peer SchmidtORCiD
URL:http://onlinelibrary.wiley.com/doi/10.1002/zaac.201700055/epdf
DOI:https://doi.org/10.1002/zaac.201700055
ISSN:1521-3749
Title of the source (German):Zeitschrift für Anorganische und Allgemeine Chemie
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2017
Tag:Chemical vapor transport; Crystal growth
Volume/Year:643
Issue number:21
First Page:1295
Last Page:1311
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Anorganische Chemie
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