1Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Greater Noida - 201306, Uttar Pradesh, India
2Department of Chemistry, Faculty of Engineering, Teerthanker Mahaveer University, Moradabad - 244001, Uttar Pradesh, India
*Corresponding Author E-mail: navkchem@gmail.com
Online published on 27 August, 2025.
The work presents a facile method for the preparation of oxygen reduction reaction (ORR) catalysts through the electrochemical polymerisation of small molecule containing pyridinic and imine-type nitrogen atoms with lone-pair electrons to perform more effective ORR investigated in alkaline KOH medium. The PEDOT modified gold electrode showed a lower activity towards the ORR than the PEPE modified one owing to the presence of N containing pyridine units in the polymeric backbone structure. On further note, PEPE-CGQDs modified electrodes did not show any improvement in ORR activity compared to PEPE alone due to the ineffectiveness of CGQDs towards the development of a superior ORR catalyst.
Chronoamperometry, Cyclic voltammetry, Electrochemical reduction, Fuel cells, Oxygen reduction reaction
