TY - JOUR
T1 - Laser flash photolysis of metal oxide supported vanadyl catalysts. Spectroscopic evidence for the ligand-to-metal charge-transfer state
AU - García, Hermenegildo
AU - López-Nieto, Jose Manuel
AU - Palomares, Emilio
AU - Roth, Heinz D.
AU - Solsona, Benjamín
PY - 2006
Y1 - 2006
N2 - A series of vanadyl containing samples supported on metal oxides (SiO 2, Al2O3, K-doped Al2O3, TiO2, MgO and ZnO) have been studied by laser flash photolysis. Excitation at 266 or 308 nm generated transients (300 nm < λmax < 500 nm) with lifetimes on the microsecond time scale. These were assigned to the ligand-to-metal charge-transfer triplet excited state. The absorption maximum varied with the nature of the support. Samples having higher vanadium loading showed additional transients attributed to vanadyl aggregates.
AB - A series of vanadyl containing samples supported on metal oxides (SiO 2, Al2O3, K-doped Al2O3, TiO2, MgO and ZnO) have been studied by laser flash photolysis. Excitation at 266 or 308 nm generated transients (300 nm < λmax < 500 nm) with lifetimes on the microsecond time scale. These were assigned to the ligand-to-metal charge-transfer triplet excited state. The absorption maximum varied with the nature of the support. Samples having higher vanadium loading showed additional transients attributed to vanadyl aggregates.
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U2 - 10.1039/b510840c
DO - 10.1039/b510840c
M3 - Article
AN - SCOPUS:33644648873
SN - 0959-9428
VL - 16
SP - 216
EP - 220
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
IS - 2
ER -