Cs0.32WO3 Applied for Thermal Insulation Paper

Cs0.32WO3 for thermal insulation paper can be prepared by hydrothermal synthesis method using sodium tungstate and cesium carbonate as raw materials. Wherein, D-malic acid is added as a reducing agent. But why choose D-malic acid as the reducing agent?

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In the process of hydrothermal synthesis of Cs0.32WO3 for thermal insulation paper, the main reason for choosing D-malic acid as a reducing agent is that the carboxyl group and hydroxyl group in malic acid can form a tungsten-oxygen complex with tungstic acid. And the tungsten-oxygen complex is strongly connected to the crystal plane parallel to the c-axis. This selective covering will drive the crystal nuclei to be added to other crystal planes. Therefore, the crystal preferentially grows along the hexagonal crystal phase, resulting in a nanorod-like structure. That is to say, D-malic acid can regulate the micro-morphology of Cs0.32WO3 and promote the formation of rod-like structures.

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