Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2654-2659 |
| Number of pages | 6 |
| Journal | ChemPhysChem |
| Volume | 17 |
| DOIs | |
| Publication status | Published - 2016 |
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Keywords
- IR-101573
- METIS-318133
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The critical role played by the catalytic moiety in the early-time photodynamics of hydrogen-generating bimetallic photocatalysts. / Pan, Qing; Mecozzi, Francesco; Korterik, Jeroen P.; Vos, Johannes G.; Browne, Wesley R.; Huijser, Jannetje Maria.
In: ChemPhysChem, Vol. 17, 2016, p. 2654-2659.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - The critical role played by the catalytic moiety in the early-time photodynamics of hydrogen-generating bimetallic photocatalysts
AU - Pan, Qing
AU - Mecozzi, Francesco
AU - Korterik, Jeroen P.
AU - Vos, Johannes G.
AU - Browne, Wesley R.
AU - Huijser, Jannetje Maria
PY - 2016
Y1 - 2016
N2 - The effect of the catalytic moiety on the early-time photodynamics of Ru/M (M=Pt or Pd) bimetallic photocatalysts is studied by ultrafast transient absorption spectroscopy. In comparison to the Ru/Pd photocatalyst described earlier, the Ru/Pt analogue shows complex excited-state dynamics with three distinct kinetic components ranging from sub-ps to 102 ps, requiring a more sophisticated photophysical model than that developed earlier for the Ru/Pd complex. In the Pu/Pt photocatalyst, an additional lower-lying excited state is proposed to quench the hot higher-lying triplet metal-to-ligand chargetransfer states. Furthermore, a strong excitation wavelength dependence on the population of excited states is observed for both the Ru/Pt and Ru/Pd complexes, indicating a nonequilibrated distribution even on the 102 ps timescale. These insights shed light on the significant impact of the catalytic moiety on the fundamental early-time photophysics of Rubased photocatalysts.
AB - The effect of the catalytic moiety on the early-time photodynamics of Ru/M (M=Pt or Pd) bimetallic photocatalysts is studied by ultrafast transient absorption spectroscopy. In comparison to the Ru/Pd photocatalyst described earlier, the Ru/Pt analogue shows complex excited-state dynamics with three distinct kinetic components ranging from sub-ps to 102 ps, requiring a more sophisticated photophysical model than that developed earlier for the Ru/Pd complex. In the Pu/Pt photocatalyst, an additional lower-lying excited state is proposed to quench the hot higher-lying triplet metal-to-ligand chargetransfer states. Furthermore, a strong excitation wavelength dependence on the population of excited states is observed for both the Ru/Pt and Ru/Pd complexes, indicating a nonequilibrated distribution even on the 102 ps timescale. These insights shed light on the significant impact of the catalytic moiety on the fundamental early-time photophysics of Rubased photocatalysts.
KW - IR-101573
KW - METIS-318133
U2 - 10.1002/cphc.201600458
DO - 10.1002/cphc.201600458
M3 - Article
VL - 17
SP - 2654
EP - 2659
JO - ChemPhysChem
JF - ChemPhysChem
SN - 1439-4235
ER -