Abstract
Mesoporous nano rod-like γ-alumina with narrow pore size distribution has been successfully prepared using phenol formaldehyde polymeric resin as a template and aluminum isopropoxide as a cheap precursor. Calcination of the resulting composites at 350 and 600°C for 6h transformed the resin-boehmite to mesoporous single phase γ-alumina. The influence of phenol formaldehyde resin on the structure, texture and morphology of alumina was investigated by mean of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Brunauer–Emmett–Teller (BET) and N2 adsorption–desorption isotherm. These mesoporous aluminas have large surface area (ca. 382m2/g), 0.4cm3/g pore volume, and narrow pore size distributions. The average pore size was achieved over the range of 3.5–5.9nm depending on the ratio of alumina to resin.
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