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Real-time in-situ monitoring of the topotactic transformation of TlCu3Se2 into TlCu2Se2
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.ORCID iD: 0000-0002-4752-5491
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Inorganic Chemistry.
2015 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 15, 321-325 p.Article in journal (Refereed) Published
Abstract [en]

The solid state transformation of monoclinic TlCu3Se2 into tetragonal TlCu2Se2 by oxidative copper leaching in concentrated ammonia solution has been studied in situ by the use of synchrotron radiation. The diffraction patterns of parent and daughter phase are both sharp, indicating a strong topotactic relationship between them that effectuates a rapid change by “chimie douce” performed at +19 °C.

The transformation rate is strongly connected to the access of oxygen from the surrounding air. The transformation was followed in a real-time mode, being almost complete after 2.5 h with 1 h incubation due to low oxygen content, as shown from refining the diffraction patterns by Rietveld profile technique.

Place, publisher, year, edition, pages
2015. Vol. 15, 321-325 p.
National Category
Inorganic Chemistry
Research subject
Chemistry with specialization in Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-247426DOI: 10.1016/j.jallcom.2015.02.180ISI: 000353377200050OAI: oai:DiVA.org:uu-247426DiVA: diva2:796129
Funder
Swedish Research Council
Available from: 2015-03-18 Created: 2015-03-18 Last updated: 2017-12-04Bibliographically approved

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Ångström, JonasSahlberg, MartinBerger, Rolf

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