Carbon nanotubes synthesized in zeolites UTD-1, UTD-18 and UTD-12

Single walled carbon nanotubes (SWCNT) were prepared in the channels of the 14MR zeolite UTD-1, 12MR zeolite UTD-18 and the 10MR zeolite UTD-12 via vacuum pyrolysis. The organometallic templates for these zeolites serve as both carbon source and catalyst for the intrazeolite growth of the nanotubes. Characterization by TEM, SEM and Raman spectroscopy indicate the diameters of the SWCNTs are on the order of 0.6, 0.5 and 0.4 nm respectively

Carbon nanotubes synthesized in zeolites UTD-1, UTD-18 and UTD-12

Single walled carbon nanotubes (SWCNT) were prepared in the channels of the 14MR zeolite UTD-1, 12MR zeolite UTD-18 and the 10MR zeolite UTD-12 via vacuum pyrolysis. The organometallic templates for these zeolites serve as both carbon source and catalyst for the intrazeolite growth of the nanotubes. Characterization by TEM, SEM and Raman spectroscopy indicate the diameters of the SWCNTs are on the order of 0.6, 0.5 and 0.4 nm respectively

Electrospun MEH-PPV/SBA-15 composite nanofibers using a dual syringe method.

The process of electrospinning, which produces fibers in the nanometer to micron range under the influence of high voltages, has been widely studied to produce polymer and textile fibers. Mesoporous molecular sieve fibers have been produced in our lab, and this technique was extended to produce an interwoven mesh of polymer-molecular sieve composite fibers. The electroluminescent polymer MEH-PPV and molecular sieve SBA-15 were used to produce the composite fibers. An interesting aspect of these composites is that the fluorescence of MEH-PPV is blue shifted in the composites. The composites have been characterized by microscopy, vibrational spectroscopy, and fluorescence measurements

Electrospun MEH-PPV/SBA-15 composite nanofibers using a dual syringe method.

The process of electrospinning, which produces fibers in the nanometer to micron range under the influence of high voltages, has been widely studied to produce polymer and textile fibers. Mesoporous molecular sieve fibers have been produced in our lab, and this technique was extended to produce an interwoven mesh of polymer-molecular sieve composite fibers. The electroluminescent polymer MEH-PPV and molecular sieve SBA-15 were used to produce the composite fibers. An interesting aspect of these composites is that the fluorescence of MEH-PPV is blue shifted in the composites. The composites have been characterized by microscopy, vibrational spectroscopy, and fluorescence measurements