沸石
结晶
单层
基质(水族馆)
晶体生长
化学工程
Crystal(编程语言)
材料科学
次生生长
纳米技术
化学
结晶学
有机化学
催化作用
计算机科学
工程类
园艺
地质学
程序设计语言
海洋学
生物
木质部
作者
Tung Cao Thanh Pham,Hyunsung Kim,Kyung Byung Yoon
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2011-12-16
卷期号:334 (6062): 1533-1538
被引量:284
标识
DOI:10.1126/science.1212472
摘要
Applications of zeolite films benefit from alignment of the integrated channels, but methods for film growth have nearly always introduced orientational randomization in the direction normal to the substrate. We now report facile methods to grow silicalite-1 films and pure silica beta zeolite films on substrates with straight or sinusoidal channels positioned uniformly upright at a thickness of up to 8 micrometers. Precise gel compositions and processing temperatures are critical to promote secondary growth on pre-formed oriented crystal monolayers while suppressing self-crystallization in the bulk medium. Preliminary results highlight the potential of these uniformly oriented films in the nonlinear optical response and separation of xylene isomers.
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