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    Hydrogen Evolution at Liquid-Liquid Interfaces
    (WILEY-V C H VERLAG GMBH, 2009) Hatay, İmren; Siu, Bin; Li, Fei; Partovi-Nia, Raheleh; Vrubel, Heron; Hu, Xile; Ersöz, Mustafa
    [Abstract not Available]
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    Hydrogen evolution at polarised liquid/liquid interfaces catalyzed by molybdenum disulfide
    (ROYAL SOC CHEMISTRY, 2011) Hatay, Imren; Ge, Pei Yu; Vrubel, Heron; Hu, Xile; Girault, Hubert H.
    Molybdenum disulfide microparticles in suspension in an aqueous acidic solution adsorb at the interface with an organic electrolyte solution containing the reducing agent, decamethylferrocene, to catalyse hydrogen evolution. This catalytic process has been investigated by voltammetry at the water/1,2-dichloroethane interface and by biphasic reactions monitored by gas chromatography and UV-visible spectroscopy.
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    Photoinduced Biphasic Hydrogen Evolution: Decamethylosmocene as a Light-Driven Electron Donor
    (WILEY-V C H VERLAG GMBH, 2013) Ge, Peiyu; Olaya, Astrid J.; Scanlon, Micheal D.; Patir, Imren Hatay; Vrubel, Heron; Girault, Hubert H.
    Excitation of the weak electron donor decamethylosmocene on illumination with white light produces an excited-state species capable of reducing organically solubilized protons under biphasic conditions. Insight into the mechanism and kinetics of light-driven biphasic hydrogen evolution are obtained by analysis with gas chromatography, cyclic voltammetry, and UV/Vis and H-1 NMR spectroscopy. Formation of decamethylosmocenium hydride, which occurs prior to hydrogen evolution, is a rapid step relative to hydrogen release and takes place independently of light activation. Remarkably, hydride formation occurs with greater efficiency (ca. 90% conversion) under biphasic conditions than when the reaction is carried out in an acidified single organic phase (ca. 20% conversion). Cyclic voltammetry studies reveal that decamethylosmocene has a higher proton affinity than either decamethylferrocene or osmocene.