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Issue 2, 2016
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Topochemical molten salt synthesis for functional perovskite compounds

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Abstract

A topochemical molten salt synthesis (TMSS) method, which is rapid and a modification of the molten salt synthesis method (MSS), to facilitate crystal growth with improved phase-purity and particle homogeneity, is one of the strategic approaches aimed at a controllable morphology synthesis. The TMSS method is an environmentally friendly and mild way to prepare pure and controllable perovskites, which are famous functional materials, used as piezoelectrics, catalysts, ferroelectrics, multiferroics, and negative thermal expansion compounds, at a moderate reaction temperature in a short soaking time. This report reviews various TMSS reactions and their applications in fulfilling the demand for the tunable morphology of perovskite materials, such as one dimensional, two dimensional and three dimensional perovskites in molten salts, which mainly include: piezoelectrics, photocatalysts, negative thermal expansion matters and other functional perovskites. The double and layered perovskites obtained by TMSS methods are also discussed. We believe that a comprehensive understanding of the TMSS method for functional perovskites will definitely promote the development of a clean, efficient and tunable production process for advanced functional materials.

Graphical abstract: Topochemical molten salt synthesis for functional perovskite compounds

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Publication details

The article was received on 18 Sep 2015, accepted on 16 Oct 2015 and first published on 16 Oct 2015


Article type: Perspective
DOI: 10.1039/C5SC03521J
Citation: Chem. Sci., 2016,7, 855-865
  • Open access: Creative Commons BY license
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    Topochemical molten salt synthesis for functional perovskite compounds

    L. Li, J. Deng, J. Chen and X. Xing, Chem. Sci., 2016, 7, 855
    DOI: 10.1039/C5SC03521J

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