297 resultados para Revel


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Jan Steen; 3 ft. 7 15/32 in.x 4 ft. 9 7/8 in.; oil on canvas

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Chansons de la tres-venerable confrerie des Francs-Macons, precedees de quelques pieces de poesie, 39 p.

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"Prilozhenīe k XXIX-mu tomy Zapisok Imp. Akademīi nauk, No. 3."

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Polyaniline/titaniurn dioxide nanocomposites were prepared using alpha-dextrose as surfactant and ammonium persulphate as an oxidant. The PANI/TiO2 nanocomposite is characterized by FTIR, XRD and TEM. The FTIR spectra revel that the presence of characteristic peaks of benzenoid, qunoide rings and metal-oxygen stretching. The XRD studies show the monoclinic structure of the nanocomposites. The TEM study shows that the size of TiO2 is in the order of 9 nm where as the composite size is of the order of 13 nm and further it was observed that the TiO2 particles are intercalated to form a core shell of PANI. The maximum sensing response for LPG is found to be 90% for 30 wt.% of PANI/TiO2 nanocomposites at 400 ppm whereas for Benzene and Toluene it is negligibly small (<= 20%) and for the cyclohexane sensing response it is around 30% for different wt.%.