title: Photochemistry of gold nanoparticles functionalized with an iron(II) terpyridine complex. An integrated visible light photocatalyst for hydrogen generation.
abstract: 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)(2)(3+) 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.
authors.affiliation: Instituto Universitario de Tecnología Química UPV-CSIC and Departamento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, Spain.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Alvaro
authors.forename: Carmela
authors.initials: C
authors.lastname: Aprile
authors.forename: Belen
authors.initials: B
authors.lastname: Ferrer
authors.forename: Francesc
authors.initials: F
authors.lastname: Sastre
authors.forename: Hermenegildo
authors.initials: H
authors.lastname: García