Zobrazeno 1 - 10
of 270
pro vyhledávání: '"C.A. Melendres"'
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:
Thin Solid Films. :742-746
In-situ visible spectroscopic ellipsometry (VISSE) is used to study the influence of 0.1 M HCl, pH 1.2 and H 2 SO 4 with equal pH on electropolished Al with and without thicker barrier oxide film. A clear connection between VISSE results and open cir
Autor:
C.A. Melendres, A. Tadjeddine
Proceedings of the NATO Advanced Research Workshop, Funchal, Madeira, Portugal, December 14--18, 1992
Publikováno v:
Electrochemistry Communications, Vol 3, Iss 12, Pp 737-741 (2001)
A method to quantify the composition of anodic oxide films on aluminum using Infrared Spectroscopic Ellipsometry (IRSE) is proposed. It consists of obtaining the absorption coefficient of the film as a function of wavelength. Using values of the abso
Publikováno v:
Electrochimica Acta. 46:3493-3502
A technique for controlling the potential of emersed electrodes is described which holds promise in the spectroscopic investigation of adsorbed layers and ultrathin films on the electrodes as a function of potential in a vacuum environment. The basis
Autor:
C.A. Melendres, Françoise Hahn
Publikováno v:
Electrochimica Acta. 46:3525-3534
The mechanism of electrooxidation of methane at 25 °C in 0.5 M HClO4 on the noble metal electrodes Pt, Au, Pd, Ru and Rh has been investigated by ‘in situ’ infrared spectroscopy. The final product of oxidation was found to be CO2 in all cases. U
Autor:
C.A. Melendres, Françoise Hahn
Publikováno v:
Journal of Electroanalytical Chemistry. 463:258-261
The adsorption of chloride and bromide ions on a gold electrode in the double layer region in 0.5 M perchloric acid solution was observed ‘in-situ’ for the first time using the technique of synchrotron far infrared reflectance spectroscopy (SFIRS
Autor:
C. Gutiérrez, C.A. Melendres
Electrochemistry is one of the oldest branches of Physical Chemistry. Having its foundations in the work of Faraday, Arrhenius and others, it evolved from the study of transport in electrolyte solutions to that of electrode kinetics. Kinetic methods
Autor:
M.G.S Ferreira, C.A. Melendres
In spite of considerable efforts over the years to understand and combat materials degradation via corrosion processes, many challenges still remain both in the theoretical understanding of the phenomena and in seeking pratical solutions to the peren
Publikováno v:
Journal of Electroanalytical Chemistry. 449:215-218
Far infrared spectra of the surface films formed upon anodic oxidation of copper have been obtained in-situ for the first time in aqueous solution environments using a synchrotron source. The spectroelectrochemical behavior of copper was studied in N