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The different weight ratios of Pd to Pt, i.e., 16:4, 10:10, 4:16 in Pd-Pt/C and Pd (20 wt. %) /C electrocatalysts with low metal loading were synthesized for glycerol electrooxidation in an air breathing microfluidic fuel cell (MFC). The cell performance on Pd-Pt (16:4)/C anode electrocatalyst was found best among all the electrocatalysts tested. The single cell when tested at a temperature of 35 o C using Pd-Pt (16:4)/C, showed maximum open circuit voltage (OCV) of 0.70 V and maximum power density of 2.77 mW/cm 2 at a current density of 7.71 mA/cm 2. The power density increased 1.45 times when cell temperature was raised from 35 o C to 75 o C. The maximum OCV of 0.78 V and the maximum power density of 4.03 mW/cm 2 at a current density of 10.47 mA/cm 2 were observed at the temperature of 75 o C. The results of CV substantiate the single cell performance for various operating parameters.

In the present work, glycerol-based air breathing microfluidic fuel cell (μFC) is investigated. The noble metal Pd and non-noble metal Ni-based bimetallic synthesized electrocatalyst (Pd-Ni/C) were used for glycerol electrooxidation and commercial Pt/C HSA was used as cathode electrocatalyst. The anolyte is glycerol mixed with KOH electrolyte. The atmospheric air and calcium hypochlorite mixture are used as oxidant in cathode and catholyte, respectively. Acetylene black carbon is used as electrocatalyst support with low metal loading of 20 wt% Pd and Ni at their different weight ratios (Pd/Ni) of 16:4, 10:10, and 4:16 to synthesize bimetallic Pd-Ni/C anode electrocatalysts. The crystal structure of the synthesized electrocatalyst was determined by X-ray diffraction (XRD) analysis. The surface morphology and surface concentration of synthe-