Résumé
Gold nanoparticles functionalized with iron(ii) terpyridine complexes undergo upon laser flash excitation long-lived charge separation in both conventional organic solvents and ionic liquids. The nature of the transient species depends on the laser excitation wavelength, 308 (Fe(tpyR)23+ and Au-) or 532 nm (solvated e-). No transients in the microsecond timescale are observed in acetonitrile upon excitation of gold nanoparticles lacking iron(ii) terpyridine complexes. The photogeneration of long-lived transients upon irradiation of these functional gold nanoparticles has been applied to develop an integrated (light harvester plus catalyst) visible-light photocatalysts for H2 generation from water that does not need methyl viologen as an electron relay.
langue originale | Anglais |
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Pages (de - à) | 7437-7444 |
Nombre de pages | 8 |
journal | Dalton Transactions |
Numéro de publication | 36 |
Les DOIs | |
Etat de la publication | Publié - 2 sept. 2009 |
Modification externe | Oui |