Ponce de León, C., Walsh, F.C., Patrissi, C.J., Madeiros, M.G., Bessette, R.R., Reeve,, R.R, Lakeman, J.B., Rose, A. and Browning, D.
A direct borohydride–peroxide fuel cell using a Pd/Ir alloy coated microfibrous carbon cathode.
Electrochemistry Communications, 10, . (doi:10.1016/j.elecom.2008.08.006).
A direct borohydride fuel cell with a Pd/Ir catalysed microfibrous carbon cathode and a gold-catalysed microporous carbon cloth anode is reported. The fuel and oxidant were NaBH4 and H2O2, at concentrations within the range of 0.1–2.0 mol dm-3 and 0.05–0.45 mol dm-3, respectively. Different combinations of these reactants were examined at 10, 25 and 42 oC. At constant current density between 0 and 113 mA cm-2, the Pd/Ir coated microfibrous carbon electrode proved more active for the reduction of peroxide ion than a platinised-carbon one. The maximum power density achieved was 78mWcm2 at a currentdensity of 71 mA cm-2 and a cell voltage of 1.09 V.
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