Abstract
Cesium tungsten bronze (CsxWO3) nanoparticles were successfully synthesized via a hydrothermal method using sodium tungstate and cesium carbonate as raw materials, and citric acid and D-malic acid as mixed reducing agents. The results of XRD and SEM show that the sample with Cs/W (molar ratio) = 0.5 promotes formation of hexagonal Cs0.32WO3 with high crystallinity during hydrothermal synthesis. Moreover, with increasing reaction time, the morphology of the sample changes from irregular-shaped nanoparticles to rod-like nanoparticles. Cs0.32WO3 powders with high crystallinity and rod-like morphology have high near-infrared absorption. Additionally, transparent thermal insulation coatings and NIR shielding glass samples were prepared by coating the mixed dispersed solution of Cs0.32WO3 with organic silicon resin on glass substrate. The results of thermal insulation characterized by UV-Vis-NIR spectra show that NIR transmittance of glass substrate is 82% and that of the as-prepared NIR shielding glass is only around 12%, which is reduced dramatically, illustrating that the synthesized rod-like Cs0.32WO3 nanoparticles with high NIR absorption have promising prospects in the fields of automotive and architectural glass.
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This work is supported by the Science and Technology Major Program of Fujian Province (2014HZ0005), China.
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Lin, S., Zhang, X., Huang, Y., Zhou, Z., Shen, S. (2018). Hydrothermal Synthesis and Characterization of Cs0.32WO3 Rod-like Nanoparticles with Excellent Near-Infrared Shielding Property. In: Han, Y. (eds) Advanced Functional Materials. CMC 2017. Springer, Singapore. https://doi.org/10.1007/978-981-13-0110-0_38
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DOI: https://doi.org/10.1007/978-981-13-0110-0_38
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