Polymeric cation exchange membranes (PEMFC) are used in fuel cell technology. These membranes act as a physical barrier between anode and cathode, but diffusion through the membrane should allow protons to be carried from anode to cathode at a rate sufficient to supply energy requirements. They avoid any direct reaction of oxygen and hydrogen that would diminish fuel cell efficiency. Membranes ...

A major impediment to the commercialization of fuel cell technology is the low activity of platinum electrocatalyst used for oxygen reduction. Pt has been alloyed with transition metals like Ni, Co etc, which show higher activity, compared to pure Pt. However, Pt remains, an expensive metal of low abundance, and hence, finding a non-noble-metal alternative is of interest. The overall objective ...

Over the past decade; a significant amount of research has been performed on novel carbon supports for use in proton exchange membrane fuel cells (PEMFCs). Specifically, carbon nanotubes, ordered mesoporous carbon, and colloid imprinted carbons have shown great promise for improving the activity and/or stability of Pt-based nanoparticle catalysts. In this work, a brief overview of these materia...

Proton exchange membrane fuel cells (PEMFC) have been increasingly applied in clean and efficient distributed power generation systems recent years. However, the output characteristics of PEMFC are relatively soft due to influence multiple polarization overvoltage. With increasement current density, voltage shows be a nonlinear downward trend. In addition, order ensure lifetime PEMFC, ripple is...

The optimum output power of the proton exchange membrane fuel cell (PEMFC) is dependent on operational conditions such as pressure, oxidant flow rate, and rate. Therefore, aim this paper to enhance performance PEMFC by identifying optimal operating parameters PEMFC. proposed strategy includes both modelling optimization stages. An adaptive network-based fuzzy inference system (ANFIS) utilized i...

Water management is critical for the function of proton exchange membrane fuel cell (PEMFC). The local through-thickness temperature gradient cathode gas diffusion layer (GDL) affect water a PEMFC. That has been known and targeted discussion several years. In this study, effects inside PEMFC was investigated by controlling it externally with fine (testing diameter about 30 ?m) thin (thickness 6...

This article introduces a dynamic semiempirical model that predicts the degradation of proton exchange membrane fuel cell (PEMFC) by introducing time-based terms in model. The concentration voltage drop is calculated using new statistical equation based on load current and working time, whereas ohmic activation drops are updated equations borrowed from existing literature. Furthermore, develope...