In this work an innovative sol-gel process to prepare an inorganic material based on the system Nb-P-Si is proposed for proton exchange membrane fuel cell applications. Nb2O5-P2O5-SiO2 gels were synthesized using NbCl5, POCl3 and TEOS as precursors of niobium, phosphorus and silicon, respectively. The synthesis procedure tuned in this work allowed to obtain transparent chemical gels with an high surface area for each studied composition. Materials were characterized for structural and textural properties by X-ray diffraction, thermogravimetry/differential thermal analysis, Fourier transformed-infrared spectroscopy and N2 adsorption.
|Titolo:||Synthesis of Nb2O5-P2O5-SiO2 materials for proton exchange membranes fuel cell (PEMFC) applications|
|Data di pubblicazione:||2013|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|