期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 136, 期 23, 页码 8277-8282出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja5006465
关键词
-
资金
- Joint Center of Excellence in Integrated Nano-Systems (JCIN) at King Abdulaziz City for Science and Technology (KACST) [34-937]
- Northwestern University (NU)
- U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-FG2-08ER15967]
- Ministry of Science, ICT, and Future Planning (MSIP) of Korea under Basic Science Research Program
- National Research Foundation [NRF-2013R1A1A1010254]
- DGIST RD Program [13-BD-0403]
The free primary hydroxyl groups in the metal-organic framework of CDMOF-2, an extended cubic structure containing units of six gamma-cyclodextrin tori linked together in cube-like fashion by rubidium ions, has been shown to react with gaseous CO2 to form alkyl carbonate functions. The dynamic covalent carbon-oxygen bond, associated with this chemisorption process, releases CO2 at low activation energies. As a result of this dynamic covalent chemistry going on inside a metal-organic framework, CO2 can be detected selectively in the atmosphere by electrochemical impedance spectroscopy. The as-synthesized CDMOF-2 which exhibits high proton conductivity in pore-filling methanolic media, displays a similar to 550-fold decrease in its ionic conductivity on binding CO2. This fundamental property has been exploited to create a sensor capable of measuring CO2 concentrations quantitatively even in the presence of ambient oxygen.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据