渗透
渗透
微型多孔材料
膜
气体分离
化学
化学工程
Crystal(编程语言)
单晶
纳米技术
色谱法
结晶学
有机化学
材料科学
生物化学
计算机科学
工程类
程序设计语言
作者
Satoshi Takamizawa,Yuichi Takasaki,Ryosuke Miyake
摘要
Development of gas separation materials has been one of the basic requirements of industry. Microporous materials have adequate pores for gas separation and have contributed to the advancement of gas purification techniques. Because the simplest and most economical method would be membrane separation, various microporous membranes have been prepared and explored for their separation properties. However, a key issue remains as to how to generate defect-free membranes with practical gas permeance. Here we report the preparation of a well-oriented single-crystal membrane with high permeance by using a flexible single crystal of [Cu2(bza)4(pyz)]n possessing one-dimensional (1D) penetration channels; this membrane exhibits anisotropic gas permeation through the 1D channels with high permselectivity for H2 and CO2. Although the diameter of the neck of the narrow channels is smaller than the kinetic diameters of the sample gases, various gases pass through the 1D channels. This report provides a new way of developing gas permeation membranes as sophisticated crystal devices for gas purification techniques.
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