Contribution à l'étude de l'insertion électrochimique du sodium dans différentes structures carbonées

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ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (49 download)

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Book Synopsis Contribution à l'étude de l'insertion électrochimique du sodium dans différentes structures carbonées by : Philippe Thomas

Download or read book Contribution à l'étude de l'insertion électrochimique du sodium dans différentes structures carbonées written by Philippe Thomas and published by . This book was released on 1999 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail se situe dans le cadre général de l'étude de l'insertion électrochimique de métaux alcalins dans des matériaux carbonés susceptibles d'applications comme anodes de générateurs secondaires. Une attention toute particulière est portée sur l'influence de la nature de l'électrolyte et du matériau carboné sur les performances électrochimiques (capacités réversible et irréversible, évolution en cyclage). L'insertion des ions sodium dans des électrolytes à base de solvants carbonates est décrite pour le graphite UF4 et les fibres P75. L'utilisation du carbonate d'éthylène (EC) entraîne la formation d'une couche de passivation sur l'électrode carbonée, imperméable aux molécules de solvant mais permettant la diffusion des ions sodium. Ce film passivant a été caractérisé par microscopie électronique à transmission (imagerie, diffraction électronique et spectrométrie par pertes d'énergie des électrons transmis). Alors que l'emploi du carbonate de propylène (PC) conduit à l'exfoliation des domaines graphités, les électrodes peuvent être cyclées soit en utilisant des mélanges EC-PC ou ChloroEC-PC soit après formation d'un film de passivation dans EC préalablement au cyclage dans PC. L'étude de l'insertion du sodium dans des fibres de carbone issues de précurseurs différents (brai mésophase ou polyacrylonitrile (PAN)) a permis de mettre en évidence deux mécanismes de fixation de l'alcalin. L'intercalation entre les feuillets de graphène est le mécanisme majoritaire pour les fibres ex-brai alors que l'insertion dans la porosité devient significative pour les fibres ex-PAN. Des produits contenant une quantité notable de sodium et cyclant réversiblement peuvent alors être synthétisés. Enfin, une étude préliminaire concerne l'insertion du sodium dans des graphites modifiés par broyage, soit chimiquement par suroxydation électrochimique. Le graphite naturel UF4, dans lequel l'insertion du sodium ne conduit qu'à des produits très pauvres, peut ainsi, après broyage, intercaler des quantités importantes de sodium (NaC11). Les moyens d'optimiser les performances électrochimiques des matériaux anodiques sont alors discutés.

Contribution à l'étude de l'insertion électrochimique du lithium dans différentes structures carbonées et dans des électrolytes divers

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ISBN 13 :
Total Pages : 195 pages
Book Rating : 4.:/5 (491 download)

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Book Synopsis Contribution à l'étude de l'insertion électrochimique du lithium dans différentes structures carbonées et dans des électrolytes divers by : Abdelaziz Naji

Download or read book Contribution à l'étude de l'insertion électrochimique du lithium dans différentes structures carbonées et dans des électrolytes divers written by Abdelaziz Naji and published by . This book was released on 1998 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

ICREEC 2019

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Publisher : Springer Nature
ISBN 13 : 9811554447
Total Pages : 659 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis ICREEC 2019 by : Ahmed Belasri

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Fuel Cell Technology Handbook

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Publisher : CRC Press
ISBN 13 : 142004155X
Total Pages : 360 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Fuel Cell Technology Handbook by : Gregor Hoogers

Download or read book Fuel Cell Technology Handbook written by Gregor Hoogers and published by CRC Press. This book was released on 2002-09-27 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel cell systems have now reached a degree of technological maturity and appear destined to form the cornerstone of future energy technologies. But the rapid advances in fuel cell system development have left current information available only in scattered journals and Internet sites. The even faster race toward fuel cell commercialization further

Clinical Chronopharmacology

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Publisher : CRC Press
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Clinical Chronopharmacology by : Alain Reinberg

Download or read book Clinical Chronopharmacology written by Alain Reinberg and published by CRC Press. This book was released on 1990-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodical and predictable changes in biological susceptibility and response to a large variety of chemical agents, including drugs and food, have been documented since the early 1970s. This book provides a survey of clinically-documented research in chronopharmacology.

Minimum competence in scientific English

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Publisher : L'Editeur : EDP Sciences
ISBN 13 : 9782868835888
Total Pages : 264 pages
Book Rating : 4.8/5 (358 download)

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Book Synopsis Minimum competence in scientific English by : Sue Blattes

Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.

An Introduction to Differential Manifolds

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Publisher : Springer
ISBN 13 : 3319207350
Total Pages : 408 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis An Introduction to Differential Manifolds by : Jacques Lafontaine

Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.

Handbook of Membrane Separations

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Publisher : CRC Press
ISBN 13 : 1466555580
Total Pages : 868 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Handbook of Membrane Separations by : Anil Kumar Pabby

Download or read book Handbook of Membrane Separations written by Anil Kumar Pabby and published by CRC Press. This book was released on 2015-04-09 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Membrane Separations: Chemical, Pharmaceutical, Food, and Biotechnological Applications, Second Edition provides detailed information on membrane separation technologies from an international team of experts. The handbook fills an important gap in the current literature by providing a comprehensive discussion of membrane application

Biological Rhythm Research

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ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Biological Rhythm Research by : A. Sollberger

Download or read book Biological Rhythm Research written by A. Sollberger and published by . This book was released on 1965 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Endocrine Rhythms

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ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Endocrine Rhythms by : Dorothy T. Krieger

Download or read book Endocrine Rhythms written by Dorothy T. Krieger and published by . This book was released on 1979 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hired Farm Workers

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ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Hired Farm Workers by : United States. Employment Standards Administration

Download or read book Hired Farm Workers written by United States. Employment Standards Administration and published by . This book was released on 1971 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Textbook on Endocrinology

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Publisher :
ISBN 13 : 9789393682246
Total Pages : 0 pages
Book Rating : 4.6/5 (822 download)

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Book Synopsis Textbook on Endocrinology by :

Download or read book Textbook on Endocrinology written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Unsteady Transonic Flow

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Publisher : Courier Dover Publications
ISBN 13 : 0486832775
Total Pages : 147 pages
Book Rating : 4.4/5 (868 download)

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Book Synopsis Unsteady Transonic Flow by : Mårten T. Landahl

Download or read book Unsteady Transonic Flow written by Mårten T. Landahl and published by Courier Dover Publications. This book was released on 2019-04-17 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic monograph on unsteady transonic flow — the flow of air encountered at speeds at or near the speed of sound — is of continuing interest to students and professionals in aerodynamics, fluid dynamics, and other areas of applied mathematics. After a brief Introduction, Swedish physicist Mårten T. Landahl presents a chapter in which the two-dimensional solution is derived, succeeded by a discussion of its relation to the subsonic and supersonic solutions. Three chapters on low aspect ratio configurations follow, covering triangular wings and similar planforms with curved leading edges, rectangular wings, and cropped delta wings, and low aspect ratio wing-body combinations. The treatment concludes with a consideration of the experimental determination of air forces on oscillating wings at transonic speeds.

Cottonseed Quality

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Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Cottonseed Quality by :

Download or read book Cottonseed Quality written by and published by . This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of physiology

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis Handbook of physiology by : William Ferguson Hamilton

Download or read book Handbook of physiology written by William Ferguson Hamilton and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Urban Environment Expert Contributions

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Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Urban Environment Expert Contributions by : Commission of the European Communities

Download or read book Urban Environment Expert Contributions written by Commission of the European Communities and published by . This book was released on 1990 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Forest Fire Research

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Publisher :
ISBN 13 : 9789892021577
Total Pages : 355 pages
Book Rating : 4.0/5 (215 download)

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Book Synopsis Forest Fire Research by : Universidade de Coimbra

Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: