| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 190234 | Electrochimica Acta | 2011 | 7 Pages |
Cs0.86(NH4)1.14SO4Te(OH)6 supported by anodic alumina membranes (AAMs) has been characterized for the first time in H2/O2 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.
Research highlights► Cs0.86(NH4)1.14SO4Te(OH)6 as filler of anodic alumina membranes (AAMs) is characterized for the first time in 25 °C H2/O2 fuel cell. ► Peak power densities in the range 15–30 mW cm−2 under mild conditions are obtained. ► An improved stability of the fuel cell to cell potential cycling with respect to previous results relating to AAM-based fuel cell is observed. ► The high conductance of the electrolyte (0.2–1.5 mS/cm) estimated from polarization curves and impedance measurements suggests possible involvement of water molecules in the proton transport.
