DEVELOPMENT OF ADVANCED ELECTRODE MATERIALS FOR ENERGY CONVERSION AND STORAGE.

Coordinator: Dr. Walter E. Triaca

The main goal of the project is to develop advanced electrode materials with suitable structural characteristcs and physicochemical properties for electrochemical energy conversion and storage processes. The project comprises: i) preparation and characterization of metal alloy electrodes for hydrogen storage and the evaluation of their performance on charge/discharge cycling in rechargeable alkaline batteries; ii) preparation and characterization of metal electrocatalysts with well-defined surface structure and composition, and the evaluation of their long-term performance and stability in hydrogen/oxygen fuel cells.
Fundamental correlations between the surface structure, chemical composition and catalytic activity of the electrode material will be established providing a rational basis for tailoring high technology electrodes to be used in advanced electrochemical energy conversion and storage systems.

   

Research Staff

Arnaldo Visintin, Ana M. Castro Luna
Carlos A. Tori, Diego R. Barsellini
Guillermo Garaventta, Gustavo Andreasen
Alejandro Bonesi, Ivana Novak
Mariela Ortiz

   

Selected publications in the frame of this project

* “Effect of additional catalytic phases imposed by sintering on the hydrogen absorption behavior of AB2-type Zr-based alloys.”
A. Visintin, H.A. Peretti, F. Ruiz, H.L. Corso y W.E. Triaca
Journal of Alloys and Compounds 428, 244-251 (2007).

* “Effect of thermal treatment on the electrochemical hydrogen absorption of ZrCrNi alloy.”
F.C. Ruiz, H.A. Peretti, A. Visintin, S.G. Real, E.B. Castro, H.L. Corso y W.E. Triaca
Journal of New Materials for Electrochemical Systems 10, 249-254 (2007).

* “Myoglobin modified electrodes as anchors for d metal cationic complexes.”
M.F. Cerdá, G. Obal, J.S. Gancheff, C. Kremer, A.M. Castro Luna, A.M. Braun, M. Woerner y E. Méndez
Bioelectrochemistry 70, 394-400 (2007).

* “Corrosion Crack Enhancement During the Cathodic Activation of Zirconium AB2 Alloys.”
J.O. Zerbino, A. Visintin y W.E. Triaca
Journal of Solid State Electrochemistry 12 (5), 545-551 (2008).

* “Electrochemical characterization of AB2 Alloys Used for Negative Electrodes in Ni/MH Batteries.”
F.C. Ruiz, E.B. Castro, S.G. Real, H.A. Peretti, A. Visintin y W.E. Triaca
International Journal of Hydrogen Energy 33, 3576-3580 (2008).

* “Pt-Fe cathode catalysts to improve the oxygen reduction reaction and methanol tolerance in direct methanol fuel cells.”
A.M. Castro Luna, A. Bonesi y W.E. Triaca
Journal of Solid State Electrochemistry 12, 643-649 (2008).

* “Synthesis and characterization of new electrocatalysts for ethanol oxidation.”
A. Bonesi , G. Garaventa , W.E. Triaca y A.M. Castro Luna
International Journal of Hydrogen Energy 33, 3499-3501 (2008).

* “Advances in the development of a hydrogen/oxygen PEM fuel cell stack.”
C. Tori, M. Baleztena, C. Peralta, R. Calzada, E. Jorge, D. Barsellini, G. Garaventta, A. Visintin y W.E. Triaca
International Journal of Hydrogen Energy 33, 3588-3591 ( 2008).