Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Françoise Hahn"'
Publikováno v:
Comptes Rendus Chimie. 17:760-769
Previous studies on dimethoxymethane (DMM: CH3 O CH2 O CH3) on platinum poly- and single crystals allowed us to propose a general mechanism of DMM electrooxidation. At the time, making electrodes for proton exchange membrane fuel cells (PEMFC) with n
Publikováno v:
Applied Catalysis B: Environmental. 94:219-224
The electrochemical reduction of carbon dioxide at a lead electrode was studied in alkaline aqueous medium. Chronoamperometry experiments combined with in situ reflectance spectroscopic measurements were performed after bubbling CO2 in an alkaline so
Publikováno v:
Surface Science. 603:1892-1899
In this work we compare the experimental results for “real” fuel cell carbon supported Pt–Ru catalysts with the literature data for well defined model surfaces. The spectroscopic carbon monoxide probing, in the infrared region, clearly reveals
Publikováno v:
Electrochemistry Communications, Vol 11, Iss 1, Pp 223-226 (2009)
Electrochemistry Communications
Electrochemistry Communications, Elsevier, 2009, 11 (1), pp. 223-226. ⟨10.1016/j.elecom.2008.11.018⟩
Electrochemistry Communications
Electrochemistry Communications, Elsevier, 2009, 11 (1), pp. 223-226. ⟨10.1016/j.elecom.2008.11.018⟩
International audience; The direct borohydride fuel cell (DBFC) is an interesting alternative for the electrochemical power generation at lower temperatures due to its high anode theoretical specific capacity(5 A h g−1). However, the borohydride ox
Publikováno v:
The Journal of Physical Chemistry C. 112:18521-18530
The carbon monoxide molecule was used to probe the surface properties of PtRu(1:1)/C catalysts with 5, 30, and 60 wt % metal. The spectroscopic IR study performed in the external reflection configuration clearly showed that linearly bonded CO dominat
Publikováno v:
Infrared Physics and Technology
Infrared Physics and Technology, Elsevier, 2008, 51 (5), pp. 446-449. ⟨10.1016/j.infrared.2007.12.017⟩
Infrared Physics and Technology, Elsevier, 2008, 51 (5), pp. 446-449. ⟨10.1016/j.infrared.2007.12.017⟩
International audience; We demonstrate the use of a grazing angle objective attachment to carry out in situ far infrared micro-spectroelectrochemistry at a copper electrode on a nano-scale. A thin-layer spectrochemical cell made out of Teflon was use
Publikováno v:
Journal of Applied Electrochemistry. 38:837-843
The electrochemical oxidation of ethanol at Sn(1−x)Ir x O2 electrodes (with x = 0.01, 0.05, 0.1 and 0.3) was studied in 0.1 mol L−1 HClO4 solution. Electrolysis experiments were carried out and the reaction products were analyzed by Liquid Chroma
Autor:
A.R. de Andrade, D. M. dos Anjos, Françoise Hahn, Josimar Ribeiro, Germano Tremiliosi-Filho, Paulo Olivi, J.-M. Léger, Kouakou Boniface Kokoh
Publikováno v:
Journal of Applied Electrochemistry. 38:653-662
Binary and ternary Pt-based catalysts were prepared by the Pechini–Adams modified method on carbon Vulcan XC-72, and different nominal compositions were characterized by TEM and XRD. XRD showed that the electrocatalysts consisted of the Pt displace
Autor:
D. M. dos Anjos, Françoise Hahn, Germano Tremiliosi-Filho, Kouakou Boniface Kokoh, J.-M. Léger
Publikováno v:
Journal of the Brazilian Chemical Society. 19:795-802
Ethanol oxidation has been studied on Pt-Sn and Pt-Sn-W electrodes prepared in an arc-melting furnace. Different electrochemical techniques like cyclic voltammetry and chronoamperometry were used to evaluate the catalytic activity of these materials.
Autor:
Kouakou Boniface Kokoh, Germano Tremiliosi-Filho, J.-M. Léger, D. M. dos Anjos, Françoise Hahn
Publikováno v:
Journal of Solid State Electrochemistry. 11:1567-1573
Ethanol oxidation on Pt–Os and Pt–Ru–Os alloy electrodes was investigated by electrochemical and spectroelectrochemical techniques. Cyclic voltammetry and chronoamperometric results showed that the Pt–Os alloy has the highest current density