Encontrados 2 documentos, a visualizar página 1 de 1
Comparison of nanosized gold-based and copper-based catalysts for the low-tempe...
Diogo Mendes; Hermenegildo Garcia; V. B. Silva; Adélio Mendes; Luís M. MadeiraIn this paper the catalytic performances for the low-temperature water-gas shift reaction of Au/TiO2 type A (from World Gold Council), Au/CeO2 (developed at UPV-CSIC), CuO/Al2O3 (from BASF), and CuO/ZnO/ Al2O3 (from REB Research & Consulting) have been compared. The catalysts were characterized by different techniques such as Raman spectroscopy, BET surface area measurements, temperature-programmed reduction, a...
An Impedance Study on the sPEEK/ZrO2 Membranes for Direct Methanol Fuel Cell Ap...
V. B. Silva; V. S. Silva; L. M. Madeira; S. P. Nunes; A. MendesElectrochemical impedance experiments were carried out in order to study the influence of the ZrO2 inorganic incorporation on the proton conductivity of sulfonated poly(ether ether ketone) (sPEEK) membranes. The impedance data was fitted to an extension of Randles' circuit, within the inorganic content and temperature ranges considered. The model fits quite well for ZrO2 loads up to 10 wt.%. Such a model allows...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||