Performance evaluation of direct borohydride–hydrogen peroxide fuel cells with electrocatalysts supported on multiwalled carbon nanotubes

摘要: Abstract The performance of direct borohydride–hydrogen peroxide fuel cells with electrocatalysts supported on multiwalled carbon nanotubes is evaluated under various conditions. Electrocatalysts are reduced by NaH 2 PO and electrodes investigated using scanning electron microscopy, energy dispersive spectroscopy, X-ray photoelectron diffraction, cell testing. maximum power density decreases increasing NaBH 4 concentration, likely owing to increases in decomposition crossover rates production amounts NaBO . In contrast, the H O reactant concentrations. Moreover, increased operating temperatures improve electrochemical reaction rates. A thin membrane crossover, whereas a thick density; consequently, Nafion 212 optimal thickness for use such as those studied here. Under selected conditions, 101.9 mW/cm As operation time increases, degraded oxidation Na deposition.