Synthesis of pd and pt based low cost bimetallic anode electrocatalyst for glycerol electrooxidation in membraneless air breathing microfluidic fuel cell

Abstract

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 C using Pd-Pt (16:4)/C, showed maximum open circuit voltage (OCV) of 0.70 V and maximum power density ofo2.77 mW/cm at a current density of 7.71 mA/cm . The power density increased 1.45 times when cell temperature was raised from235 C to 752C. The maximum OCV of 0.78 V and the maximum power density of 4.03omW/cm at a current density of 10.47 mA/cmo were observed at the temperature of 75 C. The results of CV sub-stantiate the single cell performance for various operating parameters.2 2 o. © 2021, Korean Electrochemical Society. All rights reserved.