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Synthesis of mesoporous tin dioxide via sol-gel process assisted by resorcinol-formaldehyde gel

Synthesis of mesoporous tin dioxide via sol-gel process assisted by resorcinol-formaldehyde gel
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摘要 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. 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.
出处 《Particuology》 SCIE EI CAS CSCD 2018年第2期26-32,共7页 颗粒学报(英文版)
关键词 Tin dioxide Mesoporous Resorcinol- formaldehyde gel Synthesis Tin dioxide Mesoporous Resorcinol- formaldehyde gel Synthesis
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