Proton exchange membrane fuel cells (PEMFCs) are considered ideal energy-conversion devices because of their environmentally friendly nature and high theoretical energy efficiency. However, cathodic polarization, which is a result the sluggish oxygen reduction reaction (ORR) kinetics, significant source loss reduces cell Further, need to use Pt in commercial Pt/C cathodes has restricted large-s...

In this study, zeolitic imidazolate framework (ZIF-67) derived nano-porous carbon structures that were further hybridized with MnO2 tested for oxygen reduction reaction (ORR) as cathode material fuel cells. The prepared electrocatalyst was characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and Energy Dispersive Analysis (EDX). Cyclic voltammetry performed on the...

This review provides an overview on Pd-based electrocatalysts for the oxygen reduction reaction (ORR) through scientometric analysis and critical methods. The main focus is activity regulation synthetic