%0 Journal Article
%T NH4F Modified Al-SBA-15 Materials for Esterification of Valeric Acid to Alkyl Valerates£¿
%J Proceedings | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/IOCN_2018-1-05481
%X Al-SBA-15 materials were functionalized by ball milling with several niobium loadings (0.25¨C1 wt.%) and/or with several F - loadings, using NH 4F as a precursor. The catalysts synthesized in this study were characterised by X-ray diffraction (XRD), N2 porosimetry, and diffuse reflection infrared spectroscopy (DRIFT) among others. The prepared materials shown, form moderate to high catalytic activities in the microwave-assisted transformation of valeric acid to ethyl valerate via esterification. The incorporation of fluoride anions either into Al-SBA-15 or on Nb1%/Al-SBA-15 led to a linear increase in valeric acid conversion with the F £¿ content. Thus, F £¿ modified mesoporous aluminosilicates efficiently catalyze the transformation of valeric acid into alkyl valerate esters as renewable fuels
%U https://www.mdpi.com/2504-3900/3/1/4