Cs_(0.86)(NH_4)_(1.14)SO_4Te(OH)_6 in porous anodic alumina for micro fuel cell applications

摘要

Cs_(0.86)(NH_4)_(1.14)SO_4Te(OH)_6 supported by anodic alumina membranes (AAMs) has been characterized for the first time in H_2/O_2 fuel cell. The fabricated membrane electrode assemblies are able to produce peak power densities in the range 15-30 mW cm~(-2) under mild conditions (room temperature, low humidity and low Pt loading) and show an increased durability with cycling with respect to previous results obtained with AAM-based fuel cell. The physico-chemical characterization of the electrolytes has been carried out through X-ray diffractometry, scanning electron microscopy and micro-raman analysis. An estimation of the composite membranes conductance under fuel cell operation has been carried out from I-V characteristics and EIS measurements at room temperature.