Preparation of Chiral Silica Nanostructures with Radial Pores through Single-templating Approach  

作　　者：ZHA Xinlin FAN Hui CHEN Yuanli 

机构地区：[1]Key Laboratory of Textile Fiber and Products(Wuhan Textile University),Ministry of Education,Wuhan 430073,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第6期1293-1298,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Science and Technology Innovation Plan of Wuhan Textile University;the Open Project of the State Key Laboratory of New Textile Materials and Advanced Processing Technologies (No.FZ2020003);the National Natural Science Foundation of China (No.51603155)。

摘　　要：A chiral low-molecular-weight gelator(LMWG) L-16Ala5PyPF6 was synthesized from L-alanine, which can cause physical gel in n-propanol, ethyl acetate, butylene oxide, water, benzene, 1,4-dioxane and chloroform. The sol-gel reactions were carried out in a mixture of stronger ammonia water and n-propanol at the volume ratio of 2:8. Single-handed twisted silica nanostructures with pore channels vertical to the wall surfaces were first prepared through a single-templating approach comparing with the reported double template method. The formation mechanism of radial pore structure was studied by transmission electron microscopy at different reaction time intervals, which indicated that the radial pore structure was formed via a structural transition in the sol-gel transcription process.

关 键 词：sol-gel preparation radial pores vertical pore channels single-handed structural transition 

分 类 号：TQ127.2[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]