Cited 101 time in webofscience Cited 104 time in scopus

A Metal-Organic Framework-Based Material for Electrochemical Sensing of Carbon Dioxide

Title
A Metal-Organic Framework-Based Material for Electrochemical Sensing of Carbon Dioxide
Authors
Gassensmith, Jeremiah J.Kim, Jeung YoonHolcroft, James M.Farha, Omar K.Stoddart, J. FraserHupp, Joseph T.Jeong, Nak Cheon
DGIST Authors
Jeong, Nak Cheon
Issue Date
2014-06
Citation
Journal of the American Chemical Society, 136(23), 8277-8282
Type
Article
Article Type
Article
Keywords
Activation EnergyAtmosphereAtmospheric ChemistryCarbon-Oxygen BondsCarbon DioxideChemistryConductanceCrystalline MaterialsCubic StructureDynamic Covalent ChemistryElectro-Chemical Impedance Spectroscopy (EIS)Electrochemical SensingElectrochemistryFundamental PropertiesGamma CyclodextrinHydroxyl GroupHydroxyl GroupsLow-Activation EnergyMetal Organic FrameworkOxygenProtonRubidium IonSensor
ISSN
0002-7863
Abstract
The free primary hydroxyl groups in the metal-organic framework of CDMOF-2, an extended cubic structure containing units of six Î-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 ∼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. © 2014 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/2652
DOI
10.1021/ja5006465
Publisher
AMER CHEMICAL SOC
Related Researcher
  • Author Jeong, Nak Cheon NC(Nanoporous-materials Chemistry for Fundamental Science) Lab
  • Research Interests Inorganic Chemistry; Metal-Organic Framework; Nanoporous Materials; Electron Transport;Ion Transport
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceNC(Nanoporous-materials Chemistry for Fundamental Science) Lab1. Journal Articles


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