Letteratura scientifica selezionata sul tema "Piles à combustible à membrane échangeuse de protons (PEMFC)"
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Articoli di riviste sul tema "Piles à combustible à membrane échangeuse de protons (PEMFC)":
Amrouche, Fethia, Bouziane Mahmah, Maiouf Belhamel e Hocine Benmoussa. "Modélisation d’une pile à combustible PEMFC alimentée directement en hydrogène-oxygène et validation expérimentale". Journal of Renewable Energies 8, n. 2 (31 dicembre 2005): 109–21. http://dx.doi.org/10.54966/jreen.v8i2.856.
ANTONI, Laurent, Jean-Philippe POIROT-CROUVEZIER, Francis ROY e Xavier GLIPA. "GENEPAC : pile à combustible à membrane échangeuse de protons PEMFC". Chimie verte, agosto 2013. http://dx.doi.org/10.51257/a-v2-in52.
Belatel, Mimi, Fatima Zohra Aissous e Fadila Ferhat. "Contribution à l’étude d’une pile à combustible de type PEMFC utilisée pour la production d’énergie électrique verte". Journal of Renewable Energies 15, n. 1 (23 ottobre 2023). http://dx.doi.org/10.54966/jreen.v15i1.297.
Ben Moussa, Hocine, Djamel Haddad, Kafia Oulmi, Bariza Zitouni, Bouziane Mahmah e Maiouf Belhamel. "Modélisation et simulation numérique des transferts fluidique et thermique dans le canal et couches cathodiques d’une PEMFC". Journal of Renewable Energies 10, n. 1 (12 novembre 2023). http://dx.doi.org/10.54966/jreen.v10i1.807.
Tesi sul tema "Piles à combustible à membrane échangeuse de protons (PEMFC)":
Dumercy, Laurent. "Contribution à la caractérisation thermique et fluidique d'une pile à combustible à membrane échangeuse de protons (PEMFC)". Besançon, 2004. http://www.theses.fr/2004BESA2004.
The aim of this thesis is the thermal and fluidic model of a proton exchange membrane fuel cell. The management of the internal temperature of the fuel cell affect performance, in one hand directly on the electrochemical reaction, in the other hand by determination of their internal caracteristics (hydratation of the membrane, diffusion resistance in the porous area). The modelisation is made between two axis. At first, the thermal behavior is taken into account in the global form. The fuel cell is studed as a whole with a thermal resistance network et heat sources (heat supply by electrochemical reaction, exchanges with fluids). Dirichlet boundary conditions have been used to force surface temperatures. The meshing of the network is shrink for modelizing the central cell. Specific boundary conditions are applied at this cell for quantify intterference of neighboring cells. The studied cell can be used, in this case, on many situations : adiabatic, in serial or with a external flux. In addition, anode and cathode channel have been studied with a specific model, based on the compting by finites differences of a differential equations system. Taking into account the most important physical and thermophysical quantities (pressions, flow rates, water and heat exchange coefficients), it couple internal quantities off the channel et thermal state of the overall system. The studies of the pahse change of water in the channel, his transfert beetwen the anode and the cathode and his influence on the thermal balance are studed
Mezzi, Rania. "Contrôle tolérant au vieillissement dans des systèmes pile à combustible PEMFC". Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCD031.
The objective of this work is to realize an aging-tolerant control for a proton exchange membrane fuel cell system (PEMFC). In order to achieve this goal, supervision tools, including the monitoring of critical variables, the state of health evaluation and the prediction of the future state are studied and realized. The information collected are used to adapt the system control strategy. The priority of the monitoring system developed is to ensure the energy supply required by the user, while ensuring minimal degradation of the fuel cell. The work consists on determining optimal temperature values, cathode and anode stoichiometry coefficients, and fuel cell current to provide the power required by the load, while extending the lifetime of the PEMFC. The proposed strategy avoids reversible damage and slows the aging rate of the components, while maintaining the value of the voltage in an optimal and low degrading operating range. This voltage variation range was determined by studying the degradation mechanisms of PEMFC
Krosnicki, Guillaume. "Utilisation de fullerène comme support de catalyseur pour les piles à combustible de type PEMFC". Strasbourg, 2011. http://www.theses.fr/2011STRA6224.
This work concerns the study of new fullerene-based catalysts for the cathode of fuel cell type PEMFC. The use of fullerene C60, known to be stable, as a catalyst support and the ability to bind the platinum on the fullerene can hope to improve the resistance to degradation of the active layer. As a first step, a set of type catalyst MnC60 based on platinum and / or palladium atoms bonded to C60, called metallofullerenes, were synthesized and characterized physically and chemically. In parallel, non-noble catalysts based on iron phthalocyanine deposited on fullerene have been synthesized. The performance of these catalysts were electrochemically tested on a rotating ring-disk electrode, half-cell and, for best catalysts in fuel-cell, and compared with those obtained with reference commercial catalysts on carbon black Pt/C and PtCo/C. It appears from the study that the performance of metallofullerenes depends on the stoichiometry n of MnC60 compounds and best of them exhibit performance similar or even superior to those obtained with the reference catalysts. Non-noble catalysts on fullerene can obtain performance similar to those obtained with non-noble catalysts on carbon black. In addition, an initial study of metallofullerenes aging shows these compounds have a carbon corrosion resistance similar to reference catalysts
Yakisir, Dinçer. "Development of gas diffusion layer for proton exchange membrane fuel cell, PEMFC". Master's thesis, Université Laval, 2006. http://hdl.handle.net/20.500.11794/18765.
Akrout, Alia. "Membranes hybrides nanostructurées pour application en piles à combustible". Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS014.
The objective of this PhD work is the development of perfluorosulfonic acid (PFSA) membranes for proton exchange membrane fuel cells with high mechanical and chemical stability. The strategy used during this thesis consists of preparing composite membranes incorporating networks of polymer nanofibers (mechanical reinforcement) as well as inorganic and organic radical scavengers (chemical stabilization). To avoid the elution of the latter, nanotubular clays were used as immobilization support and incorporated directly into the PFSA membrane or into polymer nanofibers. The membranes thus prepared were characterized ex situ, then in a single fuel cell. Their gas permeability and their stability towards mechanical and chemical degradation have been evaluated by accelerated stress test
Dijoux, Étienne. "Contrôle tolérant aux défauts appliqué aux systèmes pile à combustible à membrane échangeuse de protons (pemfc)". Thesis, La Réunion, 2019. http://www.theses.fr/2019LARE0008/document.
Fuel cells (FC) are powerful systems for electricity production. They have a good efficiency and do not generate greenhouse gases. This technology involves a lot of scientific fields, which leads to the appearance of strongly inter-dependent parameters. It makes the system particularly hard to control and increase the fault’s occurrence frequency. These two issues underline the necessity to maintain the expected system performance, even in faulty condition. It is a so-called “fault tolerant control” (FTC). The present paper aims to describe the state of the art of FTC applied to the proton exchange membrane fuel cell (PEMFC). The FTC approach is composed of two parts. First, a diagnostic part allows the identification and the isolation of a fault. It requires a good a priori knowledge of all the possible faults in the system. Then, a control part, where an optimal control strategy is needed to find the best operating point or to recover the fault
Touhami, Salah. "Apparition, détection et propagation des défauts à l'anode des piles à combustible à membrane échangeuse de protons". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0151.
Defects known to shorten the lifetime of polymer electrolyte membrane fuel cells (PEMFC) can appear on different membrane electrode assembly (MEA) components and under different forms due to manufacturing processes or operational aging of the fuel cell. This work concerns the occurrence, detection, and propagation of defects in PEMFC MEA, and more specifically at the anode. To this end, an accelerated stress test (AST) combining potential and humidity cycles -induced by load variations-, and open-circuit hold is applied to standard MEA, and to MEA with initial defects. Those customized MEA were intentionally prepared with a lack of active layer at the anode, the defect being located either near the hydrogen inlet or near the hydrogen outlet. Periodic electrochemical characterizations were carried out using a segmented instrumented linear cell, allowing to monitor the cell performance through the currents, electrode potentials, and local impedance, as well as the evolution of the electrochemical active surface (ECSA) at the anode and cathode during the ageing test, with a spatial resolution along the channels. An electrochemical impedance spectroscopy study was conducted jointly, using equivalent electrical circuits, and focusing on the detection of the anodic contribution to the global impedance of the cell. Results showed an accelerated degradation of the MEA and the first evidence of defect propagation, in terms of loss of ECSA at the anode. This propagation occurred in the direction of the hydrogen flow. The ECSA at the cathode also appeared to be impacted, although apparently homogeneously. Significant membrane thinning was also observed in the defective segments, with probable propagation to adjacent segments, but over a longer time period
Rambaud, Frédéric. "Elaboration de matériaux hybrides par procédé sol-gel pour application pile à combustible PEMFC". Paris 6, 2011. http://www.theses.fr/2011PA066046.
Hybrid membranes composed of a non-conductive protonic organic polymer with an inorganic conductive particles were produced for a PEMFC application with the objective of increasing the operating temperature. In order to lengthen the life expectancy of the electrodes and to improve its effectiveness, we need to increase the operating temperature. The original concept of this study employed the use of an anisotrope functionalized inorganic mesoporous componant dispersed into an organic phase. Silica is a material known for its hygroscopic characteristics. Additionally, silica has an easily modifiable surface, which brings interesting properties to electrolyte application. The first step of this study consisted of morphological control of the hybrid charge with a shape factor higher than 8 and with a large specific surface structure. The obtained nanofibers induced the protonic conduction into the polymer by forming preferential conduction paths of protons through the membrane. The movement of these cations was performed by incorporating sulfonic groups onto the porous surface of the fibers. The protonic motion was dependent on the number of active sites. A post-hybridation was necessary to increase the performance of the hybrid nanofibers. Two manners of post-incorporation and processes were studied and improved, which gave a protonic conduction equivalent to Nafion®
Ferrandez, Anne-Claire. "Synthèse et caractérisation des nouvelles architectures catalytiques pour une application en pile à combustible du type PEMFC". Poitiers, 2011. http://nuxeo.edel.univ-poitiers.fr/nuxeo/site/esupversions/1cb2c4a4-6d5f-47d5-b0a0-5d40f245abd4.
This thesis is within the scope of new catalytic layers development for proton exchange membrane fuel cell (PEMFC) based on the transposition of the phenomenology of the three-phase boundary at the molecular scale. The fieldwork concerns the working out of hybrid organic/inorganic catalyst by grafting proton conducting polymers (PSS). Both methods have been developed to introduce the polymer on the platinum nanoparticles. The first method consists of using the "grafting from" technique and controlled radical polymerization (Atom Transfer Radical Polymerization). The second grafting method used is the "grafting onto" technique. It consists first in synthesizing the polymer and second in grafting by reaction of the functions of the latter with platinum nanoparticles. Modifications of synthesis parameters allowed constituting a collection of objects showing a wide range of grafting density. Electrochemical characterizations have brought numerous information on the structure, activity and selectivity of hybrid catalytic complex
Sellin, Rémy. "Dégradation de catalyseurs Pt-C sous des conditions mimant celles d'une PEMFC en fonctionnement". Poitiers, 2009. http://theses.edel.univ-poitiers.fr/theses/2009/Sellin-Remy/2009-Sellin-Remy-These.pdf.
Fuel cell Pt/C catalysts were prepared via different colloidal methods. TGA, TGAMS, TEM and XRD studies from 323 to 573 K were carried out under oxidative and reductive atmospheres to mimic fuel cell anode and cathode working conditions and to accelerate ageing process. Under air flow, little aggregation of platinum is observed, but no fusion and increase of Lv. This is explained by the presence of oxygen species on the platinum surface. Under reductive atmosphere (H2 3%/He), aggregation and increase of the mean crystallite size are observed. Two kinetics of grain growth process seem to exist. Moreover, the carbon support undergoes degradation by combustion under air and reforming under reductive atmosphere. The effect of thermal treatment under controlled atmospheres on the electrochemical active surface area and on the electrocatalytic activity towards oxygen reduction reaction and CO oxidation of the Pt/C catalyst were evaluated
Libri sul tema "Piles à combustible à membrane échangeuse de protons (PEMFC)":
Spiegel, Colleen. PEM fuel cell modeling and simulation using Matlab. Boston: Academic Press/Elsevier, 2008.
Spiegel, Colleen. PEM fuel cell modeling and simulation using Matlab. Boston: Academic Press/Elsevier, 2008.
Spiegel, Colleen. PEM fuel cell modeling and simulation using Matlab. Boston: Academic Press/Elsevier, 2008.
Li, Xianguo, Jiujun Zhang, David P. Wilkinson, Jeffrey Fergus e Rob Hui. Proton Exchange Membrane Fuel Cells: Materials Properties and Performance. Taylor & Francis Group, 2009.
Li, Xianguo, Jiujun Zhang, David P. Wilkinson, Jeffrey Fergus e Rob Hui. Proton Exchange Membrane Fuel Cells: Materials Properties and Performance. Taylor & Francis Group, 2009.
Franco, Alejandro A. Polymer Electrolyte Fuel Cells: Science, Applications, and Challenges. Taylor & Francis Group, 2013.
Franco, Alejandro A. Polymer Electrolyte Fuel Cells: Science, Applications, and Challenges. Jenny Stanford Publishing, 2016.
Pasupathi, Sivakumar, Juan Carlos Calderon Gomez, Huaneng Su, Harikishan Reddy e Piotr Bujlo. Recent Advances in High-Temperature PEM Fuel Cells. Elsevier Science & Technology Books, 2016.
Wood, David. Impacting Commercialization of Rapid Hydrogen Fuel Cell Electric Vehicles. SAE International, 2016.
Qi, Zhigang. Proton Exchange Membrane Fuel Cells. Taylor & Francis Group, 2013.