TY - JOUR
T1 - Hydrogenation of sunflower oil over Pt-Ni bimetallic supported catalysts
T2 - Preparation, characterization and catalytic activity
AU - McArdle, Shane
AU - Leahy, J. J.
AU - Curtin, Teresa
AU - Tanner, David
PY - 2014/3/22
Y1 - 2014/3/22
N2 - It has been reported that in order to improve sunflower oil hydrogenation catalysts the geometric or electronic effects of the catalysts must be manipulated in order to achieve the desired activity or selectivity. To achieve this, the development of an active and selective bimetallic catalyst was undertaken. An innovative approach was taken to synthesize Pt-Ni catalysts supported on mesoporous silica using the surface redox reaction (Srr) technique. It was determined that the Srr preparation method resulted in better activity and lower selectivity towards trans isomer than the traditional successive and co-impregnation bimetallic impregnation techniques. The change in selectivity can be explained by a promoter electronic effect generated by the close proximity of a second metal on the catalysts surface and from a geometric effect due to the incorporation of the Ni on the surface. All the bimetallic catalysts showed a drop in the formation of trans compared to the monometallic catalyst.
AB - It has been reported that in order to improve sunflower oil hydrogenation catalysts the geometric or electronic effects of the catalysts must be manipulated in order to achieve the desired activity or selectivity. To achieve this, the development of an active and selective bimetallic catalyst was undertaken. An innovative approach was taken to synthesize Pt-Ni catalysts supported on mesoporous silica using the surface redox reaction (Srr) technique. It was determined that the Srr preparation method resulted in better activity and lower selectivity towards trans isomer than the traditional successive and co-impregnation bimetallic impregnation techniques. The change in selectivity can be explained by a promoter electronic effect generated by the close proximity of a second metal on the catalysts surface and from a geometric effect due to the incorporation of the Ni on the surface. All the bimetallic catalysts showed a drop in the formation of trans compared to the monometallic catalyst.
KW - Bimetallic catalysts
KW - Hydrogenation of sunflower oil
KW - Pt-Ni supported on silica
KW - Trans fatty acids
UR - http://www.scopus.com/inward/record.url?scp=84898881542&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2013.08.033
DO - 10.1016/j.apcata.2013.08.033
M3 - Article
AN - SCOPUS:84898881542
SN - 0926-860X
VL - 474
SP - 78
EP - 86
JO - Applied Catalysis A, General
JF - Applied Catalysis A, General
ER -