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Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport
(Elsevier, 2013-04)
The performance of membrane electrode assembly (MEA) prepared with PtRu nanoparticles supported on a mesoporous carbon as anode catalyst are presented and compared against PtRu synthesized over Vulcan carbon. Polarization ...
The influence of transition metal oxides type M+/M++ on the vanadium-tellurite glasses electrical behavior
(Elsevier Science, 2015-11)
In this work, the electrical behavior and structural features of the system xCu2O (1-x) (0.5V2O5·0.5MoO3) 2TeO2 compared to xAg2O (1-x) (0.5V2O5·0.5MoO3) 2TeO2 (which was already studied) are explored. The main goal is to ...
Non-linear dielectric spectroscopy of microbiological suspensions.
(BioMed Central, 2009-09)
BACKGROUND: Non-linear dielectric spectroscopy (NLDS) of microorganism was characterized by the generation of harmonics in the polarization current when a microorganism suspension was exposed to a sinusoidal electric field. ...
The crystallization phenomenon on a modified phosphate glass interpreted through the correlation between the a.c. electrical behaviour and the non isothermal nucleation
(Elsevier Science, 2021-04)
The electrical behavior of a bismuth-phosphate glass lithium ion conductor is studied in a very wide temperature range, from 39 K to 843 K, encompassing the glassy state, passing through the glass transition temperature, ...
Novel templated mesoporous carbons as electrode for electrochemical capacitors with aqueous neutral electrolytes
(Elsevier Science, 2017-02)
In search for new electrodes for electrochemical capacitors, two template mesoporous carbons (TMC) are prepared with the replica method by using Plugged Hexagonal Templated Silica (PHTS) and Mesostructured Cellular Foam ...
An EIS based study of a Ni-MH battery prototype. Modeling and identification analysis
(Pergamon-Elsevier Science Ltd, 2010-06)
Modeling and simulation of the dynamics of batteries is a useful method to improve design and predict their performance. This paper outlines the development of a simple physicochemical model to simulate the impedance ...
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction
(Royal Society of Chemistry, 2020-08)
The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based ...
Stabilization of the cubic perovskite in the system La1-xBa xCo1-yFeyO3-δ (0.7 ≤ x ≤ 0.9) and its electrochemical performance as cathode materials for intermediate-temperature solid oxide fuel cells
(Elsevier Science, 2014-02-01)
The effects of the substitution of Co by Fe on the crystal chemistry and electrode reaction of the system La1-xBaxCo 1-yFeyO3-δ (0.7 ≤ x ≤ 0.9), are investigated. The incorporation of Fe stabilizes the cubic perovskite and ...
Effect of Nb5 + content on the high temperature properties of the mixed conductors system La1 − xBaxCo1 − yNbyO3 − δ with 0.6 ≤ x ≤ 1.0 and 0 ≤ y ≤ 0.4
(Elsevier Science, 2017-02)
The replacement of Co by Nb in the La1 − xBaxCo1 − yNbyO3 − δ (0.6 ≤ x ≤ 1.0) system and its effects on phase stability and high temperature properties of the cubic perovskite phase were investigated by X-ray diffraction, ...
Tratamientos de conversión atóxicos y eco-compatibles para la protección de acero electrocincadoNon-toxic and eco-compatible conversion treatment for the protection of Electro galvanised steel
(Pontificia Universidad Católica de Chile, 2012-06)
La resistencia a la corrosión de recubrimientos basados en cinc puro puede ser mejorada mediante la aplicación de adecuados tratamientos de pasivación. Los compuestos de cromo hexavalente han sido ampliamente utilizados ...