Yazar "Li, Fei" seçeneğine göre listele

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  • Küçük Resim Yok
    Öğe
    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]
  • Küçük Resim
    Öğe
    Oxygen Reduction by Decamethylferrocene at Liquid/Liquid Interfaces Catalyzed by Dodecylaniline
    (Elsevier Science Sa, 2010) Su, Bin; Hatay, İmren; Li, Fei; Partovi-Nia, Raheleh; Mendez, Manuel A.; Samec, Zdenek; Ersöz, Mustafa; Girault, Hubert H.
    Molecular oxygen (O-2) reduction by decamethylferrocene (DMFc) was investigated at a polarized water/1,2-dichloroethane (DCE) interface. Electrochemical results point to a mechanism similar to the EC type reaction at the conventional electrode/solution interface, in which an assisted proton transfer (APT) by DMFc across the water/DCE interface via the formation of DMFcH(+) corresponds to the electrochemical step and O-2 reduction to hydrogen peroxide (H2O2) represents the chemical step. The proton transfer step can also be driven using lipophilic bases such as 4-dodecylaniline. Finally, voltammetric data shows that lipophilic DMFc can also be extracted to the aqueous acidic phase to react homogeneously with oxygen.
  • Küçük Resim Yok
    Öğe
    Proton-Coupled Oxygen Reduction at Liquid-Liquid Interfaces Catalyzed by Cobalt Porphine
    (AMER CHEMICAL SOC, 2009) Hatay, Imren; Su, Bin; Li, Fei; Mendez, Manuel Alejandro; Khoury, Tony; Gros, Claude P.; Barbe, Jean-Michel
    Cobalt porphine (COP) dissolved in the organic phase of a biphasic system is used to catalyze O-2 reduction by an electron donor, ferrocene (Fc). Using voltammetry at the interface between two immiscible electrolyte solutions (ITIES), it is possible to drive this catalytic reduction at the interface as a function of the applied potential difference, where aqueous protons and organic electron donors combine to reduce O-2. The current signal observed corresponds to a proton-coupled electron transfer (PCET) reaction, as no current and no reaction can be observed in the absence of either the aqueous acid, COP, c, or O-2.