Epitaxial Growth of γ-Cyclodextrin-Containing Metal-Organic Frameworks Based on a Host-Guest Strategy.

Autor:	Shen D; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.; Institute for Molecular Design and Synthesis , Tianjin University , 92 Weijin Road , Tianjin 300072 , China., Wang G; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Liu Z; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.; School of Science , Westlake University , 18 Shilongshan Road , Hangzhou 310024 , China., Li P; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Cai K; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Cheng C; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Shi Y; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Han JM; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.; Key Laboratory of Explosion Science and Technology of China , Beijing Institute of Technology , 5 South Zhongguancun Street , Beijing 100081 , China., Kung CW; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Gong X; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Guo QH; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Chen H; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Sue AC; Institute for Molecular Design and Synthesis , Tianjin University , 92 Weijin Road , Tianjin 300072 , China., Botros YY; PanaceaNano, Inc. , 2265 East Foothill Boulevard , Pasadena , California 91107 , United States., Facchetti A; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Farha OK; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Marks TJ; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.; Materials Research Center , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States., Stoddart JF; Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.; Institute for Molecular Design and Synthesis , Tianjin University , 92 Weijin Road , Tianjin 300072 , China.; School of Chemistry , University of New South Wales , Sydney , NSW 2052 , Australia.
Jazyk:	angličtina
Zdroj:	Journal of the American Chemical Society [J Am Chem Soc] 2018 Sep 12; Vol. 140 (36), pp. 11402-11407. Date of Electronic Publication: 2018 Aug 31.
DOI:	10.1021/jacs.8b06609
Abstrakt:	A class of metal-organic frameworks (MOFs)-namely CD-MOFs-obtained from natural products has been grown in an epitaxial fashion as films on the surfaces of glass substrates, which are modified with self-assembled monolayers (SAMs) of γ-cyclodextrin (γ-CD) molecules. The SAMs are created by host-guest complexation of γ-CD molecules with surface-functionalized pyrene units. The CD-MOF films have continuous polycrystalline morphology with a structurally out-of-plane ( c-axial) orientation, covering an area of several square millimeters, with a thickness of ∼2 μm. Furthermore, this versatile host-guest strategy has been applied successfully in the growth of CD-MOFs as the shell on the curved surface of microparticles as well as in the integration of CD-MOF films into electrochemical devices for sensing carbon dioxide. In striking contrast to the control devices prepared from CD-MOF crystalline powders, these CD-MOF film-based devices display an enhancement in proton conductance of up to 300-fold. In addition, the CD-MOF film-based device exhibits more rapid and highly reversible CO 2 -sensing cycles under ambient conditions, with a 50-fold decrease in conductivity upon exposure to CO 2 for 3 s which is recovered within 10 s upon re-exposure to air.
Databáze:	MEDLINE
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