Morphology and phase controlled synthesis of CsxWO3 powders by solvothermal method and their optical properties

Jing Xiao Liu, Fei Shi, Xiao Li Dong, Su Hua Liu, Chuan Yan Fan, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    In this work, the effects of processing parameters such as reaction solvent, autoclave rotating and Cs source on the morphology and microstructure of CsxWO3 products were investigated. The as-synthesized CsxWO3 samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and spectrophotometer. The results indicate that using ethanol as solvent is favorable for obtaining pure hexagonal Cs0.20WO3 or Cs0.30WO3 crystals. With the increase of water content in the reaction solution, some impurities such as WO3 and WO3(H2O)0.333 easily form due to the decrease of reducing atmosphere. The autoclave rotating during the reaction is very helpful for decreasing the particle size, but is not very favorable for forming rod-like hexagonal CsxWO3 to some extent. In addition, the reaction solvent, autoclave rotating and Cs source have great effects on the optical absorption of CsxWO3 products.

    Original languageEnglish
    Pages (from-to)329-336
    Number of pages8
    JournalPowder Technology
    Volume270
    Issue numberPart A
    DOIs
    Publication statusPublished - 2015 Jan 1

    Keywords

    • Crystal phase
    • CsWO
    • Morphology
    • Near-infrared absorption
    • Solvothermal synthesis

    ASJC Scopus subject areas

    • Chemical Engineering(all)

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