In recent years, with wide application of proton exchange membrane fuel cell (PEMFC) in vehicles and portable applications, researches regarding PEMFC lifetime behavior associated prognostic techniques receive more interest. this article, a least absolute shrinkage selection operator-echo state network (LASSO-ESN)-based strategy is proposed for the optimization input parameters long-term predic...

The thermal management of a proton exchange membrane fuel cell (PEMFC) is crucial for vehicles. This paper presents new simulation model the water-cooled PEMFC stacks automotive vehicles and cooling systems. system considers both stack compressed air through intercooler. Theoretical analysis was carried out to calculate heat dissipation requirements system. case study results show that more tha...

Although proton-exchange membrane fuel cells (PEMFC) are considered as a safe and clean energy technology, aging phenomena of the membrane-electrode assembly (MEA), more particularly membrane, still restrict PEMFC lifetime. In this paper, ex-situ accelerated chemical degradation – via Fenton's reagents exposure reinforced Nafion™ XL is performed in order to investigate impact on structure prope...

According to finite-time thermodynamics, an irreversible high temperature proton exchange membrane fuel cell (HT-PEMFC) model is established, and the mathematical expressions of output power, energy efficiency, exergy efficiency ecological coefficient performance (ECOP) HT-PEMFC are deduced. The ECOP a step forward in optimizing relationship between power dissipation, which more line with princ...

Based on a coupled finite element method (FEM) and computational fluid dynamics (CFD) model, the structural deformation performance of proton exchange membrane fuel cell (PEMFC) under different water contents are studied. The absorption behavior is investigated experimentally to obtain its expansion coefficient with content, Young’s modulus catalyst (CL) obtained through tensile experiment. sim...

The performance of the proton exchange membrane fuel cell (PEMFC) is not best when it manufactured. It must be activated before can put into use. In this paper, a single-cell-based rapid activation method using high current pulses was proposed. pulse used rectangular to discharge PEMFC by adjusting peak current, period, duty cycle, and cycle times. polarization curve, electrochemical impedance ...

In this work, a review of articles and patents related to the utilization of colloidal metal nanoparticles produced by the decomposition of organometallic precursors as supported electrocatalysts in different electrochemical reactions including hydrogen evolution reaction (HER), oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) is discussed. In the case of stabilized metal n...

The long-term efficiency of proton exchange membrane fuel cells (PEMFC) is largely restricted by the instability of catalyst nanoparticles during fuel cell operation. Due to their large surface area-tovolume ratio, Pt and Pt-alloy nanoparticles have a strong tendency to grow in size over short time scales, which lead to a reduction in their electrochemically-active surface area, and consequentl...