Influence of Operating and Electrochemical Parameters on PEMFC Performance: A Simulation Study

Abstract

Proton exchange membrane fuel cell, or polymer electrolyte fuel cell, (PEMFC) has received a significant amount of attention for green energy applications due to its low carbon emission and less other toxic pollution capacity. Herein, we develop a three-dimensional (3D) computational fluid dynamic model. The values of temperature, pressure, relative humidity, exchange coefficient, reference current density (RCD), and porosity values of the gas diffusion layer (GDL) were taken from the published literature. The results demonstrate that the performance of the cell is improved by modifying temperature and operating pressure. Current density is shown to degrade with the rising temperature as explored in this study. The findings show that at 353 K, the current density decreases by 28% compared to that at 323 K. In contrast, studies have shown that totally humidified gas passing through the gas channel results in a 10% higher current density yield, and that an evaluation of a 19% higher RCD value results in a similar current density yield.

CO-Tolerant Hydrogen Oxidation Electrocatalysts for Low-Temperature Hydrogen Fuel Cells

“…The application of the electrooxidation strategy is generally limited by the high CO oxidation onset potential, which is not feasible for the HOR operating at near-zero potentials . A more suitable approach for improving the CO tolerance is to weaken the CO adsorption, which is independent of the reaction potential.…”

Nanodiamonds: A Cutting‐Edge Approach to Enhancing Biomedical Therapies and Diagnostics in Biosensing

“…The NDs have also found entry into diverse domains, including biomedicine, photovoltaics, drug delivery, thermal management within electronics, applications related to energy storage, and electrochemical sensors. [35][36][37][38][39][40][41] Maximizing the potential of NDs necessitates the meticulous control and modulation of their structural and physical properties. This review provides a succinct examination of various classes of ND particles, systematically classified based on their synthesis methodologies and corresponding structural features.…”

“…Despite its initial origins in the defense industry, ND applications have diversified across various sectors of modern technology. The NDs have also found entry into diverse domains, including biomedicine, photovoltaics, drug delivery, thermal management within electronics, applications related to energy storage, and electrochemical sensors [35–41] . Maximizing the potential of NDs necessitates the meticulous control and modulation of their structural and physical properties.…”

MXene-based nanocomposites: emerging candidates for the removal of antibiotics, dyes, and heavy metal ions

“…69 Recent growth in 2D nanomaterials has drawn more and more attention and is extensively utilized in energy storage devices, water purification systems, biomedical applications, sensor technology, and photocatalytic remediation. [70][71][72][73][74][75][76][77][78][79][80] MXenes are a large family of 2D nanomaterials composed of different transition metals, carbides, nitrides, and carbonitrides, which have graphene-like properties. 69 MXenes have a variety of end functional groups, including -O, -F, and -OH, on their surface, providing excellent surface reactivity, outstanding hydrophobicity, and the best electrical, mechanical, and optical properties.…”