Tin dioxide is a useful n-type oxide semiconductor used in a variety of applications owing to its superior optical, electrical, and multifunctional properties. Here, we used a network of resorcinol–formaldehyde (RF) gel to synthesize mesoporous tin dioxide via a sol–gel process. The effects of various synthesis parameters on the morphology and mesoporosity of the obtained product were investigated, including aging time of the RF gel, tin-to-formaldehyde molar ratio, resorcinol-to-carbonate molar ratio, and the aging time of the tin/RF mixed gel. Our experimental results showed that the interaction between the network of the RF gel and tin-containing sol is a key factor that affected the structural strength of the porous network and the porosity of the final product. Through control of the interactions in the tin/RF mixed gel we obtained porous tin dioxide materials that could be effectively used to form large-surface area films with desirable mesoporous properties.

二氧化锡是一种有用的Ñ型氧化物半导体由于其优异的光学，电学和多功能特性而在各种应用中使用。在这里，我们使用了间苯二酚-甲醛（RF）凝胶网络通过溶胶-凝胶工艺合成中孔二氧化锡。研究了各种合成参数对所得产物的形貌和介孔率的影响，包括RF凝胶的老化时间，锡与甲醛的摩尔比，间苯二酚与碳酸盐的摩尔比以及锡/甲醛的老化时间。射频混合凝胶。我们的实验结果表明，RF凝胶网络与含锡溶胶之间的相互作用是影响多孔网络结构强度和最终产品孔隙率的关键因素。