立方氧化锆
材料科学
溶胶凝胶
纳米技术
化学工程
化学
复合材料
工程类
陶瓷
作者
Hongjing Huo,Sibing Wang,Shuwei Lin,Yi Li,Baozong Li,Yonggang Yang
出处
期刊:Journal of materials chemistry. A, Materials for energy and sustainability
[The Royal Society of Chemistry]
日期:2014-01-01
卷期号:2 (2): 333-338
被引量:36
摘要
Chiral nanomaterials have attracted much attention due to their potential applications in the fields of asymmetric catalysis, enantioseparation and chirality sensors. Herein, left- and right-handed helical zirconia nanotubes were prepared through a sol–gel transcription approach using the self-assembly of a pair of chiral low-molecular-weight gelators (LMWGs) as templates. The handedness of the zirconia nanotubes is controlled by that of the organic self-assembly. The calcined nanotubes had mixed monoclinic and tetragonal structures. The diffuse reflectance circular dichroism spectra indicated that the zirconia nanotubes exhibited optical chirality. The pyridinium rings of the LMWGs adsorb ZrO2 nanoparticles through electrostatic interactions, and the amide groups transfer chirality to the inner surfaces of the ZrO2 nanotubes through a CO⋯Zr4+ interaction.
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