| Abstract
| - Covalent functionalization and pore size manipulation were successfully achieved on ordered mesoporouscarbons, by using a method in which diazonium compounds were in-situ generated and reacted with thecarbon surface. Aryl groups substituted on the 4-poisiton (Ar−R, R = chlorine, ester, and alkyl) werecovalently attached to the surface of hexagonally structured carbon, which was synthesized using orderedsilica SBA-15 as template. The presence of these functional groups on the modified carbons was confirmedwith Fourier transform infrared spectroscopy, thermogravimetric analysis, electron microscopy, and nitrogenadsorption. A relatively high grafting density of ∼1.5 μmol/m2 was achieved. Chemical modificationconsiderably changed the pore width from 3.0 nm for the unmodified samples to ∼1.4 nm for modifiedsamples, while the primary hexagonal structure and the unit parameter of ordered mesoporous carbonwere retained after attachment of surface functionalities.
- The surface of ordered carbons was covalently functionalized with aryl groups substituted on the 4-poisiton (Ar−R, R = chlorine, ester, and alkyl). A grafting density of ∼1.5 μmol/m2 was achieved in the experiment, while the pore size was reduced from 3.0 to ∼1.4 nm after modification.
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