Abstract:The electro-oxidation of ascorbate (AAO) in the presence of urea at NiOx/CoOx/GNs/GC electrode is investigated. Cyclic voltammetry measurements show that the peak current (Ip) of AAO at NiOx/CoOx/GNs/GC electrode is ten times that of GNs/GC electrode. This highlights the role of catalyst composition and order of deposition on the activity of AAO. Interestingly, blending ascorbate (AH ̶ ) with urea caused a significant promotion of AAO. Both the Ip of AAO and the fuel utilization in the AH ̶ /urea fuel blend so… Show more
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