UV-Vis microspectroscopy: probing the initial stages of supported metal oxide catalyst preparation.
A UV-vis microspectroscopy methodology for monitoring the speciation and macrodistribution of catalyst-precursor species inside catalyst-support bodies at the initial stages of catalyst preparation has been developed. The setup is based upon optical-fiber technology and allows spatially resolved analysis of bisected catalyst bodies. The potential of this tool is demonstrated by two pore-volume impregnation studies involving Ni2+ d-d transition bands and Cr6+ charge-transfer bands.
van de Water
Leon G A
LG
Department of Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, P.O. Box 80083, 3508 TB Utrecht, The Netherlands.
Bergwerff
Jaap A
JA
Nijhuis
T Alexander
TA
de Jong
Krijn P
KP
Weckhuysen
Bert M
BM