VO₂/硅铝凝胶纳米复合热致变色智能箔：大幅提高的透光率和太阳调制能力。
VO₂/Si-Al gel nanocomposite thermochromic smart foils: largely enhanced luminous transmittance and solar modulation.
作者信息
Liu C, Cao X, Kamyshny A, Law J Y, Magdassi S, Long Y
机构信息
School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
Institute of Chemistry, Faculty of Science, The Hebrew University, Jerusalem 91904, Israel.
出版信息
J Colloid Interface Sci. 2014 Aug 1;427:49-53. doi: 10.1016/j.jcis.2013.11.028. Epub 2013 Nov 20.
VO2 nanoparticles with a dimension of approximately 20 nm were obtained by simple mechanical bead-milling method, which were well dispersed in transparent silica-alumina (Si-Al) gel matrix to form nanocomposites. The VO2/Si-Al gel thermochromic nanocomposite foils were fabricated with various VO2 solid contents and foil thickness. With 10% VO2 loading and 3 μm foil thickness, high luminous transmittance (T(lum(20°C))=63.7% and T(lum(90°C))=54.4%), and large solar modulation ability (ΔTsol=12%) can be obtained which surpasses the best reported results (nanoporous films:T(lum(20°C))=43.3%, T(lum(90°C))=39.9% and ΔTsol=14.1%). This current approach provided a simple and scalable preparation method with the best combined thermochromic performance.
通过简单的机械珠磨法获得了尺寸约为20 nm的VO₂纳米颗粒，这些颗粒很好地分散在透明的硅铝（Si-Al）凝胶基质中，形成纳米复合材料。VO₂/Si-Al凝胶热致变色纳米复合箔是用不同的VO₂固体含量和箔厚度制备的。当VO₂负载量为10%且箔厚度为3μm时，可获得高发光透射率（T(lum(20°C)) = 63.7%，T(lum(90°C)) = 54.4%）和大的太阳调制能力（ΔTsol = 12%），这超过了已报道的最佳结果（纳米多孔膜：T(lum(20°C)) = 43.3%，T(lum(90°C)) = 39.9%，ΔTsol = 14.1%）。这种目前的方法提供了一种具有最佳综合热致变色性能的简单且可扩展的制备方法。
Zotero 插件