TY - JOUR
T1 - Liquid phase oxidation of ethylbenzene on pure and metal doped HS-AlF3
AU - Murwani, Irmina K.
AU - Scheurell, Kerstin
AU - Kemnitz, Erhard
N1 - Funding Information:
Irmina K. Murwani gratefully acknowledges the DAAD for financial support. We also thank Dr. G. Scholz and DC R. König for performing the MAS NMR, S.Baessler for Py PAS/NH 3 TPD and I. Hinz for the catalytic measurements.
PY - 2008/11/15
Y1 - 2008/11/15
N2 - Pure and doped high surface aluminium fluorides (HS-AlF3) with different active metal species (Fe, Mn, V, and Nb) were prepared by a sol-gel fluorination technique. The resulting solids were characterised by MAS NMR, pyridine photoacoustic spectroscopy, NH3 TPD and O2 chemisorption. As probe reaction for the catalytic behaviour of the samples the selective liquid phase oxidation of ethylbenzene (EB) to acetophenone (AP) was used. The catalytic behaviour strongly depends on the type and strength of the surface acid sites formed and on the oxidation capacities of the active metal sites. The best results were obtained (high EB conversion and selectivity towards AP) with the vanadium and iron doped aluminium fluoride, whereas the vanadium containing sample tends to leach under the reaction conditions.
AB - Pure and doped high surface aluminium fluorides (HS-AlF3) with different active metal species (Fe, Mn, V, and Nb) were prepared by a sol-gel fluorination technique. The resulting solids were characterised by MAS NMR, pyridine photoacoustic spectroscopy, NH3 TPD and O2 chemisorption. As probe reaction for the catalytic behaviour of the samples the selective liquid phase oxidation of ethylbenzene (EB) to acetophenone (AP) was used. The catalytic behaviour strongly depends on the type and strength of the surface acid sites formed and on the oxidation capacities of the active metal sites. The best results were obtained (high EB conversion and selectivity towards AP) with the vanadium and iron doped aluminium fluoride, whereas the vanadium containing sample tends to leach under the reaction conditions.
UR - http://www.scopus.com/inward/record.url?scp=54149091388&partnerID=8YFLogxK
U2 - 10.1016/j.catcom.2008.08.025
DO - 10.1016/j.catcom.2008.08.025
M3 - Article
AN - SCOPUS:54149091388
SN - 1566-7367
VL - 10
SP - 227
EP - 231
JO - Catalysis Communications
JF - Catalysis Communications
IS - 2
ER -