Abstract
Ordered mesoporous carbons (OMCs) were synthesized using SBA-15 silica as template through a two-step method of carbon precursor infiltration. Rod-like SBA-15 silica templates were prepared either in the presence or in the absence of NaCl at 35 °C or 60 °C. Furfuryl alcohol was used as carbon precursor. SBA-15 silica templates, SBA-15/polyfurfuryl alcohol composites and mesoporous carbons were characterized by means of XRD, SEM and nitrogen adsorption-desorption measurements. Nitrogen adsorption data and α5-plot showed that the SBA-15 silica prepared in the absence of NaCl contained both micropores and mesopores whereas samples prepared in the presence of NaCl (NaCl/SiO2=0.1 or 0.5) exhibited no micropores. SEM images showed that the morphology of the current OMCs was directly dependent on the pore structure of the SBA-15 silica templates. The carbons derived from SBA-15 silicas that contained channels interconnected with either micropores or secondary mesopores retained the rod-like morphology whereas the carbon prepared using SBA-15 silica that contained only primary mesopores did not retain this morphology.
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