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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 ...
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 ...
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 ...
Surface, thermal, and mechanical properties of composites and nanocomposites of polyurethane PTFE nanoparticles
(2014)
Films from blends of polyurethane and nano-polytetrafluoroethylene aqueous dispersions (PU/nanoPTFE) were prepared, and the effect of the addition of different amounts of PTFE nanoparticles (50 nm) was studied. The changes ...
Effect of antioxidant active films on the oxidation of soybean oil monitored by Fourier transform infrared spectroscopy
(2014)
An active film prepared from waterborne polyurethane incorporated with different concentrations of butylated hydroxytoluene (BHT) and a-tocopherol was developed, and the films’ antioxidant character- istics were studied ...
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; ...
High solids, one coat paints based on aliphatic epoxi resin siloxanes for steel protection
(Elsevier, 2014-05-01)
This research involved the design of high-solids, one-coat paints for the protection of metal structures
with low maintenance requirements. The main paint components were: (i) an aliphatic epoxy resin
cured with an ...
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 ...