Quaternary misfit compounds—A concise review

Sokhrab B. Aliev, Reshef Tenne

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations

Abstract

Misfit layered compounds (MLCs) have been studied in the literature for the last 40 years. They are generally made of an alternating sequence of two monolayers, a distorted rocksalt structure, and a hexagonal layered compound. In a typical MLC, the c-axis is common to the two monolayers and so is one of the axes in the layer plan. However, the two compounds are non-commensurate along at least one axis, and the ratio between the two axes is an irrational number making the MLC a non-stoichiometric compound. The two main families of MLC are those based on metal dichalcogenides and CoO2 as the hexagonal layered compound. Traditionally, ternary MLCs were prepared and studied, but some quaternary and multinary MLC minerals have been known for many years. Over the last few years, interest in MLCs with four and even larger number of atoms has grown. Doping or alloying of a ternary MLC permits precise control of the charge carrier density and hence the electrical, thermoelectric, catalytic, and optical properties of such compounds. In this short review, some of these developments will be discussed with the main emphasis put on quaternary MLC nanotubes belonging to the chalcogenide series. The synthesis, structural characterization, and some of their properties are considered. Some recent developments in quaternary cobaltite MLCs and recent studies on exfoliated MLCs are discussed as well.

Original languageEnglish
Article number468
JournalCrystals
Volume10
Issue number6
DOIs
StatePublished - Jun 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Funding

This work was partially supported by the Israel Science Foundation No. 339/18 Grant No. 120924, the Sustainability and Energy Research Initiative (SAERI) of the Weizmann Institute (Grant No. 7220730101), the Perlman Family Foundation, and the Kimmel Center for Nanoscale Science Grant No. 43535000350000.

FundersFunder number
Perlman Family Foundation
Sustainability and Energy Research Initiative
Center for Nanoscale Science and Technology43535000350000
Weizmann Institute of Science7220730101
Israel Science Foundation120924, 339/18

    Keywords

    • Cobaltites
    • Inorganic nanotubes
    • Metal dichalocgenides
    • Misfit compounds

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