Cesium tungsten bronze for transparent heat insulating glass exhibits a strong characteristic absorption, that is, an excellent near-infrared (NIR) absorption performance, owing to the free electrons or polarons. According to the experts, the NIR absorption property became more significant with decreasing particle size or increasing particle concentration. Well, do you know how to prepare cesium tungsten bronze by a stirred bead milling process?
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The experts have successfully prepared the cesium tungsten bronze nano particles by a stirred bead milling process. By grinding micro-sized coarse cesium tungsten bronze powder with grinding beads of 50 μm in diameter, the mean hydrodynamic diameter of cesium tungsten bronze powder could be reduced to about 50 nm in 3 h, and a stable aqueous dispersion could be obtained at pH 8 via electrostatic repulsion mechanism. After grinding, the prepared cesium tungsten bronze nanoparticles retained the hexagonal structure and had no significant contaminants from grinding beads.
