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Surface Diels-Alder Reactions as an Effective Method to Synthesize Functional Carbon Materials

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons59100

Weidenthaler,  Claudia
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons58985

Schüth,  Ferdi
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Kaper, H., Grandjean, A., Weidenthaler, C., Schüth, F., & Goettmann, F. (2012). Surface Diels-Alder Reactions as an Effective Method to Synthesize Functional Carbon Materials. CHEMISTRY-A EUROPEAN JOURNAL, 18(13), 4099-4106. doi:10.1002/chem.201102718.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-F2AA-E
Abstract
The post-synthesis chemical modification of various porous carbon materials with unsaturated organic compounds is reported. By this method, amine, alcohol, carboxylate, and sulfonic acid functional groups can be easily incorporated into the materials. Different carbonaceous materials with surface areas ranging from 240 to 1500 m2g-1 and pore sizes between 3.0 and 7.0 nm have been studied. The resulting materials were analyzed by elemental analysis, nitrogen sorption, FTIR spectroscopy, zeta-potential measurements, thermogravimetric analysis, photoelectron spectroscopy, and small-angle X-ray scattering. These analyses indicated that the degree of functionalization is dependent on the nature of the dienophile (reactivity, steric hindrance) and the porosity of the carbon material. As possible applications, the functionalized carbonaceous materials were studied as catalysts in the Knoevenagel reaction and as adsorbents for Pb2+ from aqueous solution.