WorldCat Identities

Chatenet, Marian

Overview
Works: 57 works in 60 publications in 2 languages and 125 library holdings
Roles: Other, htt, Thesis advisor, Contributor, Opponent, Author, dgs
Classifications: TP359.H8, 540
Publication Timeline
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Most widely held works by Marian Chatenet
Energy, Environment and New Materials( )

1 edition published in 2021 in English and held by 23 WorldCat member libraries worldwide

Utilization of Hydrogen for Sustainable Energy and Fuels( )

1 edition published in 2021 in English and held by 6 WorldCat member libraries worldwide

Carbon neutral hydrogen technologies play a key-role in preventing climate change and hydrogen is really at the heart of the energy transition. As we can produce heat and power directly from hydrogen in a clean way, we will have many applications in the growing hydrogen economy. This book presents the current state and latest development trends of hydrogen economy with the focus on applications. It gives an overview of the hydrogen utilization as it relates to the transport technology, such as automobiles, heavy-duty vehicles, trains, ships, air, and space transport and industry. Large attention is given to structural and functional materials science, technologies and innovations with focus on the development of new materials and electrolytes for specific applications. Strictly related to mobility is the relation between vehicles and refuel stations, the safety analysis, risk assessment for both infrastructures and transport. Ideal book for students of materials science, chemistry, physics; for researchers and chemical- and mechanical engineers, for industrialists, policymakers, safety agencies and governments
Insertion/Disinsertion of Hydrogen in Tailored Pd Layers Deposited on Pt(111) Surface in Alkaline and Acidic Medium by Vanessa L Oliveira( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

Electronic and electrocatalytic properties of nickel oxide thin films and interfacing on silicon for water splitting devices by Raphaël Poulain( )

1 edition published in 2020 in English and held by 2 WorldCat member libraries worldwide

Particules creuses peu expensives, durables et actives pour la réduction de l'oxygène dans le cadre d'une application en pile à combustible à membrane échangeuse de protons by Tristan Asset( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

This thesis investigates the mechanisms driving the formation, the en-hanced activity for the oxygen reduction reaction (ORR) and the dura-bility of porous hollow PtM/C nanoparticles (NPs) for proton exchange membrane fuel cell (PEMFC) applications. The formation and growth of the NPs, synthesized by a 'one-pot' process, were discussed in the light of microscopic, in operando X-ray and electronic measurements, unveiling the different intermediate steps of the synthesis. The synthe-sis process was extended to different non-noble metals (M = Ni, Co, Cu, Zn and Fe) and to different carbon supports. The enhanced activity for the ORR resulted from (i) the contraction of the lattice parameter by the non-noble metal (the final NPs contains ca. 15 - 20 at. % of M), (ii) the open porosity and (iii) the density of structural defects at the surface of the NPs, rationalized by COads stripping measurments and Rietveld analysis. The non-noble metal was found to segregate faster than the structural defects during the accelerated stress tests
Assemblages membrane-électrodes exempts de métaux précieux pour l'électrolyse de l'eau à électrolyte polymère solide by Nsélé Mbemba Kiele( Book )

2 editions published in 2010 in French and held by 2 WorldCat member libraries worldwide

The work presented here is related to the production of hydrogen and oxygen of electrolytic grade using SPE (Solid Polymer Electrolyte) water electrolysis. In state-of-the-art technology, noble metals are used as electro catalysts: platinum is used at the cathode for the hydrogen evolution reaction and iridium (or its oxides) is used at the anode for the oxygen evolution reaction. Because of their costs, noble metals are limiting the large scale development of this technology, in spite of other advantages. We report here on results obtained concerning the manufacturing and electrochemical characterization of noble-metals-free Membrane Electrode Assemblies (MEA). It is shown that polyoxometalates or cobalt clathrochelates can be used in place of platinum for the hydrogen evolution reaction and that molecular complexes of ruthenium can be used in place of iridium for the oxygen evolution reaction. Additional results related to the development and characterization of anion-conducting polymers are also presented. The electrochemical performances of these new SPE cells are compared to those measured on conventional cells with noble metals
Etude des réactions mettant en jeu l'oxygène dans un système électrochimique lithium-air aqueux rechargeable électriquement by Florian Moureaux( )

1 edition published in 2011 in French and held by 2 WorldCat member libraries worldwide

The electrochemical lithium-air devices are emerging concepts and their very high theoretical performances have attracted a lot of attention, especially for an application in the electrical vehicle. A target of at least 500 Wh kg-1 is aimed for. The aqueous lithium-air devices have not yet been studied in detail which is not the case for the anhydrous lithium-air technology. This thesis firstly deals with the development of an aqueous lithium-air cell based on a three electrodes setup, and secondly attempts to improve our theoretical knowledge of these systems. This study particularly focuses on the positive compartment of the cell in which oxygen reactions occur. The first section is dedicated to the development of an oxygen evolution electrode made of 316L stainless steel. The study shows its ability to catalyze the oxygen evolution reaction as well its good stability over 3 000 hours of operation. Nevertheless, major problems of catalysis were observed and assigned to the presence of lithium ions in the electrolyte. Li+ ions inhibit the electrochemical oxidation of the active sites, which are needed for the electrocatalytic properties. The behavior of an air cathode was characterized in the same medium. The results show two important phenomena which reduces the electrode performance and which are also attributed to lithium ions : a deactivation of the (MnIII/MnIV) transition and a stabilization of the oxygenated groups at the carbon surface. Finally, an optimization of the electrolytic system was proposed by limiting the Li+ ions activity in solution, which improves the charge/discharge potential efficiency of the battery
Surface Distortion and Electrocatalysis : Structure-Activity Relationships for the Oxygen Reduction Reaction on PtNi/C Nanocatalysts by Raphaël Chattot( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

This PhD thesis was initially motivated by the understanding of the peculiar electrocatalytic activity of hollow PtNi/C nanoparticles for the oxygen reduction reaction (ORR). Investigations on the formation and growth mechanism of this novel class of nanocatalysts using operando X-ray and electron-based techniques revealed that, beyond alloying effects, structural disorder is a lever to boost the ORR kinetics on bimetallic nanomaterials. The 'defects do catalysis' concept was progressively extended to various PtNi catalyst nanostructures, namely to advanced shape-controlled nanocatalysts from the ORR electrocatalysis landscape thanks to fruitful collaborations with European laboratories. This work shows that, through their distorted surface, microstrained nanomaterials feature unprecedented adsorption chemisorption properties and represent a viable approach to sustainably enhance the ORR activity
NiMnOx/C: A Non-noble Ethanol-Tolerant Catalyst for Oxygen Reduction in Alkaline Exchange Membrane DEFC by Amanda C Garcia( )

1 edition published in 2013 in English and held by 2 WorldCat member libraries worldwide

Activity and Durability of Platinum-Based Electrocatalysts with Tin Oxide-Coated Carbon Aerogel Materials as Catalyst Supports by Fabien Labbé( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Développement de cathodes performantes pour batteries lithium/air by Sophie Berenger( )

1 edition published in 2014 in French and held by 2 WorldCat member libraries worldwide

Pt Nanoparticles Supported on Niobium-Doped Tin Dioxide: Impact of the Support Morphology on Pt Utilization and Electrocatalytic Activity by Gwenn Cognard( )

1 edition published in 2016 in English and held by 2 WorldCat member libraries worldwide

Développement d'un procédé d'élimination de l'Arsenic en milieu aqueux, associant électrocatalyse et filtration by Juan Francisco Rivera Zambrano( )

1 edition published in 2012 in French and held by 2 WorldCat member libraries worldwide

This work deals with the electrochemical synthesis and structural characterisation of composite nano-structured functionalized polymer electrodes containing a homogeneous dispersion of ruthenium oxide or iridium oxide nanoparticles, and the study of their electrocatalytic properties towards arsenic (III) oxidation to arsenic (V) in aqueous medium. The combination of electrocatalytic oxidation of arsenic (III) with the ultrafiltration technique LPR (Liquid Phase Polymer-assisted Retention) allowed us to confirm the usefulness of this combined approach for arsenic removal. In this process, the nanocomposite materials based on iridium oxide showed the most interesting properties because they are capable of catalyzing the oxidation of arsenite in neutral and slightly positive potential. Finally, the iridium oxide nanostructured electrodes are also effective for the catalytic water oxidation of 4-electrons in oxygen and thus have the potential to be used in the context of the dissociation reaction of water. Keywords: ruthenium oxide, iridium oxide, nanocomposite, electrocatalysis, arsenic, ultrafiltration, water oxidation
Design of Pd-Pb Catalysts for Glycerol and Ethylene Glycol Electrooxidation in Alkaline Medium by Tristan Asset( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Redox shuttle and positive electrode protection for Li-O2 systems by Rémi Blanchard( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

Les travaux de cette thèse focalisent sur la résolution de deux problèmes majeurs des électrodes positives de systèmes Li-O2, dus à la nature du produit de décharge formé pendant la réaction de réduction de l'oxygène, en milieux Li+ : Lithium peroxyde (Li2O2). Le premier problème est lié au processus de formation de ce dernier (étapes successives de nucléation électrochimiques et de dismutation chimique d'un intermédiaire : le superoxide de lithium), qui conduit à la formation de très grosses particules de peroxyde lithium à la surface de l'électrode. Du fait de leurs taille et de leur résistivité ( le gap du peroxyde de lithium est de 5 eV), il est impossible de recharger de manière efficace et à 100% ce dernier. Cependant, ce problème peut être résolu, grâce à l'ajout d'un additif, qui permet le transport d'électron en solution, et qui peut (en théorie), recharger les particules de Li2O2, détachées de l'électrode. Un très bon candidat a été trouvé dans cette étude, qui a prouvé de très bonne performances pour l'amélioration du processus de recharge, et un effet bénéfique supplémentaire a été caractérisé sur le potentiel de décharge, grâce à un effet catalytique (augmentation du potentiel de réduction de 230 mV). Cependant, cette solution demande de repenser totalement le design actuel des systèmes Li-O2, car ce composé (soluble) peut facilement traverser le séparateur, vers l'électrode de lithium (et causer une autodécharge importante ainsi qu'une boucle de recharge infinie). Le second problème est lié à une autre caractéristique du peroxyde de lithium : sa réactivité. De fait, c'est un base forte au sens de Lewis (en accord avec la théorie HSAB), et réagit de manière importante avec les constituants de l'électrodes (réactivité avec le liant PVDF, mais aussi avec les solvant, le sel et le support carboné de l'électrode). Il est donc nécessaire de trouver un moyen de protéger ce dernier, et une solution proposé dans ce manuscrit a été de réaliser la déposition d'une couche nanométrique de Nb2O5, qui a pour but d'éviter tout contact direct entre le carbone, et le peroxyde de lithium (réaction entre ces deux derniers, qui conduit à la formation d'un composé avec un gap de 7 eV : le carbonate de lithium). Le dépôt fut étudié sur un carbone graphitisé (Zoltek Panex 30) qui, de manière surprenante, a été très résistant versus le peroxyde de lithium. Malheureusement, la présence du dépôt à la surface du tissus n'a pas protégé l'électrode, mais a plutôt eu l'effet inverse, car des traceurs de la formation de carbonate de lithium ont pu être observé (alors qu'aucun traceur n'était détecté sur le tissu nu). Le Nb2O5 a donc été écarté, et d'autres composés doivent être testés dans de futures études, pour cette application
Catalyseurs de piles à combustible à membrane polymère échangeuse anionique by Ivan Roche( Book )

2 editions published in 2007 in French and held by 2 WorldCat member libraries worldwide

The electrocatalytic properties of materials for electrodes of Alkaline Fuel Cell were studied with their composition and morphology. Dispersed silver nanoparticles were synthesized by chemical Impregnation on various commercial carbons: the catalysts Ag/Monarch 1000 exhibit better massic activites towards the Oxygen Reduction Reaction (ORR) than the benchmark Ag/Vulcan XC72 (E-TEK). MnOx nanoparticles were also synthesized by chemical deposition on carbon. Me-doped (Me = Ni, Mg) MnOx/C exhibit ORR activity close to the benchmark catalyst 10 wt.% Pt/C (E-TEK), and yield quantitative formation of OH- (4-electron pathway). An ORR mechanism on MnOJC is suggested
Développement d'électrodes composites architecturées à base de zinc pour accumulateurs alcalins rechargeables by Vincent Caldeira( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

Ces travaux de thèse résultent d'une étude multidisciplinaire dont l'objectif final était d'élaborer une électrode négative à base de zinc pour accumulateur alcalin rechargeable. L'origine de l'étude tient en la découverte surprenante, par la société EASYL, d'un nouveau procédé de synthèse du zincate de calcium (CAZN), matière électrochimiquement active et connue pour ses bonnes caractéristiques de cyclabilité en générateur alcalin rechargeable. L'intérêt de cette découverte réside dans ses caractéristiques avantageuses : la synthèse ultra-rapide se fait en continu, n'utilise aucun système de chauffe ni de solution alcaline et conduit à une granulométrie et une pureté contrôlée du zincate de calcium ; la rendant compatible avec une production industrielle de ce matériau.L'utilisation de CAZN en batterie prismatique de 4 Ah a permis la découverte d'un fonctionnement des électrodes de type cœur-coquille, leur cœur actif étant riche en zinc et leur surface jouant le rôle de couche protectrice ; si la capacité nominale est choisie inférieure à la capacité théorique de la batterie, l'activité à cœur de l'électrode est maintenue sans que sa surface ne soit altérée, ce qui permet d'éviter (ou de ralentir) la formation de dendrite, un effet très bénéfique sur la cyclabilité de l'électrode.Cependant, l'utilisation du zincate de calcium comme seule source de matière active ne semble pas appropriée. En effet, la formation du cœur de zinc conduit à l'apparition d'une couche résistive d'hydroxyde de calcium à sa périphérie, diminuant les performances électrochimiques des électrodes. Aussi surprenant que cela puisse paraitre, il est cependant possible de régénérer une électrode vieillie ayant formé une couche riche en hydroxyde de calcium par un simple repos, soit un arrêt pur et simple de la batterie. La formation de cette couche résistive peut en outre être évitée par l'ajout d'oxyde de zinc sacrificiel au zincate de calcium, additif actif qui s'est avérée efficace tant d'un point de vue morphologique qu'électrochimique.En revanche, la formation contrôlée d'un cœur riche en zinc conduit à la densification du zinc sur lui-même, et diminue la surface de contact matière active/électrolyte et donc les performances électrochimiques. Partant de ce constat, la structure de l'électrode a été intégralement repensée pour permettre la formation, non pas d'un cœur de zinc, mais de plusieurs d'entre eux, par l'emploi de collecteurs de courant multicouches ; cette méthodologie, aussi simple qu'efficace, conduit à d'excellentes performances pratiques et une cyclabilité optimale de la batterie
Platinum supported on resorcinol-formaldehyde based carbon aerogels for PEMFC electrodes: Influence of the carbon support on electrocatalytic properties by Julien Marie( )

1 edition published in 2006 in English and held by 2 WorldCat member libraries worldwide

Tailoring membranes by Marian Chatenet( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

 
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Energy, Environment and New Materials
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Alternative Names
M. Chatenet wetenschapper

Marian Chatenet forsker

Marian Chatenet researcher ORCID ID = 0000-0002-9673-4775

Languages
English (15)

French (7)