溶胶凝胶法制备WO_3-MoO_3复合薄膜的气致变色性能(英文)  

Gasochromic Properties of WO_3-MoO_3 Composite Films Prepared by Sol-Gel Process

作　　者：史继超[1] 吴广明[1] 沈军[1] 高国华[1] 梁田[1] 周斌[1] 

机构地区：[1]同济大学,上海200092

出　　处：《稀有金属材料与工程》2010年第S2期40-43,共4页Rare Metal Materials and Engineering

基　　金：The Shanghai Committee of Scientific and Technical (0852nm01300, 07JC14052, 07DZ22302);National Natural Science Foundation of China (50752001);Shanghai Committee of Construction and Transportation

摘　　要：采用溶胶凝胶技术分别制备了 WO3 和 MoO3溶胶,PdCl2作为催化剂被掺入 WO3-MoO3复合溶胶中,然后采用提拉浸渍镀膜法成功制备了 WO3-MoO3复合薄膜。采用原子力显微镜和 X 射线衍射仪分别研究了薄膜的表面形貌和薄膜的晶态结构。采用紫外可见分光光度计原位测试了 WO3-MoO3复合薄膜的气致变色性能。研究表明,该法制备的非晶体的 WO3-MoO3复合薄膜也具有很好的气致变色性能。WO3 and MoO3 sols were prepared by a sol-gel method with tungsten powder, molybdenum powder and 30%H2O2 solution. PdCl2 powders were then incorporated in the WO3-MoO3 sol as catalyst. Then WO3-MoO3 composite films were prepared by a dip coating method. Surface morphology and microstructure of the films were analyzed with AFM and XRD. The gasochromic properties of the films were investigated by UV-Vis spectrophotometer. The results show good gasochromic properties of the amorphous WO3-MoO3 composite films.

关 键 词：溶胶凝胶技术 WO3-MoO3复合薄膜 气致变色 

分 类 号：TB383.2[一般工业技术—材料科学与工程]