吸附
纳米孔
一氧化碳
选择性
化学
铜
分子
离子
化学工程
Crystal(编程语言)
二氧化碳
碳纤维
材料科学
纳米技术
吸附
有机化学
催化作用
计算机科学
工程类
复合数
复合材料
程序设计语言
作者
Hiroshi Satō,Wataru Kosaka,Ryotaro Matsuda,Akihiro Hori,Yuh Hijikata,Rodion V. Belosludov,Shigeyoshi Sakaki,Masaki Takata,Susumu Kitagawa
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2014-01-10
卷期号:343 (6167): 167-170
被引量:434
标识
DOI:10.1126/science.1246423
摘要
Carbon monoxide (CO) produced in many large-scale industrial oxidation processes is difficult to separate from nitrogen (N2), and afterward, CO is further oxidized to carbon dioxide. Here, we report a soft nanoporous crystalline material that selectively adsorbs CO with adaptable pores, and we present crystallographic evidence that CO molecules can coordinate with copper(II) ions. The unprecedented high selectivity was achieved by the synergetic effect of the local interaction between CO and accessible metal sites and a global transformation of the framework. This transformable crystalline material realized the separation of CO from mixtures with N2, a gas that is the most competitive to CO. The dynamic and efficient molecular trapping and releasing system is reminiscent of sophisticated biological systems such as heme proteins.
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