FRLP - I+D+i - CENTROS - CITEMA - TRABAJOS DE INVESTIGACIÓN: Materiales subidos recientemente
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Preparation and evaluation of carbon supported catalysts for ethanol oxidation
(Springer, 2013)Supported PtSnIr/C, PtSn/C, and IrSn/C catalysts with potential application in a direct alcohol fuel cell were prepared by chemical reduction employing Pechini methodology. The catalyst particles were characterized by ... -
Síntesis de nano catalizadores para celdas de combustible de metanol directo
(Revista Tecnología y Ciencia UTN, 2014)Las celdas de combustible de metano/ directo, DMFCs, permiten una conversión completa de la energía de la reacción química (CH)3OH(ac)+3/2 O2(g)=7CO2(g)+2H2O(l) en energía eléctrica. El platino es el catalizador más utilizado ... -
Research on methanol tolerant catalysts for the oxygen reduction reaction
(Springer, 2015)Direct methanol fuel cells (DMFCs) generate electricity in a clean and efficient way, so they are a valuable alternative to traditional environmentally harmful technologies. Portable power sources are one of the applications ... -
Efectos de la membrana de intercambio de protones en el desempeño de una celda de combustible H2 O2
(Revista Tecnología y Ciencia UTN, 2016)Una celda de combustible convierte directamente la energía química de un combustible en electricidad. Su desempeño depende de diferentes parámetros tales como el espesor de la membrana intercambiadora de protones, el ... -
Searching for suitable catalysts for a passive direct methanol fuel cell cathode
(Elsevier, 2015)Trimetallic PtMRu/C cathode catalysts with M ¼ Co or Fe obtained by an impregnation procedure using ethylene glycol and NaBH4 as reducing agent, with suitable activity for the oxygen reduction reaction (ORR) and improved ... -
Effect of water content in the gas diffusion layer of H2 O2 PEM fuel cell
(Journal of Materials Science and Engineering, 2016)The heart of a fuel cell is the membrane-electrode assembly consisting of two porous electrodes, where the electrochemical reactions take place, and the ionomer conductive membrane, which allows the proton exchange from ... -
Electrochemical characterization of nickel hydroxide nanomaterials as electrodes for NiMH batteries
(Springer, 2016-08-23)β-Nickel hydroxide was successfully synthesized by a hydrothermal method. Nano-nickel hydroxide material was characterized by X-ray diffraction, infrared absorption spectroscopy, and transmission electron microscopy. They ... -
Electrochemical characterization of MWCNT Ni(OH)2 composites as cathode materials
(Springer, 2015-09-04)The hydrothermal method was used to synthesize multi-walled carbon nanotube/nickel hydroxide composites (MWCNT/Ni(OH)2). The structure and morphology of the prepared materials were characterized by X-ray diffraction and ... -
Characterization of anodes for lithium ion batteries
(Springer, 2015-08-14)The lithium-ion batteries are energy storage systems of high performance and low cost. They are employed in multiple portable devices, and these require the use of increasingly smaller and lighter batteries with high energy ... -
Effect of cobalt electroless deposition on nickel hydroxide electrodes
(Elsevier, 2014-02-21)The effects of cobalt additive on the positive electrode surface of nickel alkaline batteries are investigated. Electrode surface modifications by electroless cobalt deposits were made at different immersion times. The ... -
Preparation and characterization of positive electrode of NiMH batteries with cobalt additives
(Elsevier, 2014-02-18)The present paper shows the preparation and characterization of alkaline batteries cathodes formed by nickel hydroxide with the addition of cobalt. This additive was incorporated by two methods: on the electrode surface, ... -
Preparation and characterization of graphite anodes for lithium ion batteries
(The Electrochemical Society, 2014)The lithium-ion batteries are energy storage systems of high performance and low cost. They are employed in multiple portable devices and these require the use of increasingly smaller and lighter batteries with high energy ... -
Adherence in a pavement rehabilitated with a polymeric grid used as interlayer
(Elsevier, 2014-01-02)A polymeric grid was placed between layers of a pavement with the aim of preventing the reflection of cracks from the base material to the upper layer. Results explain why the usual faults that occur in rehabilitated ... -
Pinturas basadas en resina epoxi alifática curada con alcoxisilanos para la protección de sustratos metálicos
(Atipat, 2014-05-01)La presente investigación involucró el diseño de pinturas de altos sólidos, de aplicación en una sola capa, destinadas a la protección de construcciones metálicas con necesidades de mínimo mantenimiento y alta durabilidad; ... -
Pinturas anticorrosivas epoxídicas basadas en zinc esférico y zinc laminar
(Atipat, 2017-08-01)Como resulta conocido, la partículas de zinc esférico transportan la corriente protectora entre dos partículas adyacentes en forma tangencial; consecuentemente el contacto es limitado. Con el fin de asegurar un denso ... -
Nanopinturas híbridas acuosas para la protección de fachadas
(Atipat, 2015-08-01)Las fachadas de edificios, a pesar de su aparente resistencia, son vulnerables a los agentes exteriores y necesitan una protección eficaz contra la acción del medio externo. Usualmente en una primera etapa se aplican ... -
Fibras de refuerzo en pinturas y recubrimientos : parte III
(Atipat, 2017-05-01)El fuego es una manifestación energética que acompaña constantemente a la actividad humana, por lo que debe asumirse el riesgo emergente. El fuego desarrolla reacciones químicas fuertemente exotérmicas, iniciándose cuando ... -
Fibras de refuerzo en pinturas y recubrimientos : parte II
(Atipat, 2016-04-01)Establecida la naturaleza electroquímica de la mayoría de los procesos de corrosión, la tecnología de las pinturas anticorrosivas se orienta en el sentido de formular productos destinados ya sea a controlar el desarrollo ... -
Fibras de refuerzo en pinturas y recubrimientos : parte I
(Atipat, 2016-04-01)La mayoría de las tecnologías modernas requiere materiales con una combinación inusual de propiedades, imposibles de diseñar con los existentes en forma individual. Esta necesidad es muy evidente en aplicaciones espaciales, ... -
Siloxanes synthesized in situ by solgel process for fire control in wood of Araucaria angustifolia
(Elsevier, 2013-10-10)Panels of Araucaria angustifolia were chemically modified with alkoxysilanes, hydrolyzed and condensed “in situ” by the sol–gel process. Alkoxysilanes selected were aminopropyl methyldiethoxysilane (A), aminopropyl ...