Author: Guillaume Bessière
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Book Description
Ces travaux de thèse portent sur l'application des concepts de la chimie verte à la préparation de matériaux carbonés. En effet, ces derniers sont largement utilisés dans divers domaines et les préoccupations environnementales actuelles engendrent un intérêt croissant pour les carbones durables.Ainsi, il a été choisi d'appliquer les paramètres des synthèses dites hydrothermales, largement étudiées jusqu'alors pour la préparation de matériaux (carbonés ou non), à un nouveau type de composés : les eutectiques profonds. Ces derniers sont préparés à partir d'un mélange de fructose et de chlorure de choline. Une synthèse dite « carbonisation eutecticothermale » a ainsi été mise au point et permet notamment l'emploie de ces précurseurs non toxiques et renouvelables, tout en s'affranchissant de l'utilisation d'un solvant. Bien que les matériaux ainsi obtenus présentent des caractéristiques similaires à leurs cousins hydrothermaux le caractère supramoléculaire des eutectiques engendre des différences morphologiques. De plus, des quantités d'azote non négligeables (4,82 % pour les polymères et 0,62 % pour les carbones traités thermiquement) sont incorporées dans ces solides via l'un des constituants du mélange eutectique : la choline. En effet, une étude mécanistique a mise en avant l'impact prépondérant de cette dernière, suivant ses proportions dans le mélange initial, sur les réactions de déshydratation/polycondensation à l'origine de la formation des matériaux. Ainsi, c'est pour des mélanges comportant entre 50 et 80 % de fructose que cet impact est le plus marqué. Enfin, il est à noter que les matériaux ainsi formés ont été testés en catalyse acide et adsorption de CO2 et montrent de bons résultats.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
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.
Author: Mohamed Thariq Hameed Sultan
Publisher: Springer Nature
ISBN: 9813340916
Category : Technology & Engineering
Languages : en
Pages : 345
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Book Description
The book highlights the recent research developments in biocomposite design, mechanical performance and utility. It discusses innovative experimental approaches along with mechanical designs and manufacturing aspects of various fibrous polymer matrix composites and presents examples of the synthesis and development of biocomposites and their applications. It is useful for researchers developing biocomposite materials for biomedical and environmental applications.
Author: Vincent Blay
Publisher:
ISBN: 9789462985568
Category : Organometallic compounds
Languages : en
Pages : 0
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Book Description
This book examines Zeolites and Metal-Organic Frameworks. It explains the different synthetic routes available to prepare these materials, and examines how they are used by science and industry.
Author: Museum of Fine Arts, Boston
Publisher:
ISBN:
Category : Art
Languages : en
Pages : 68
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Book Description
Author: Universidade de Coimbra
Publisher:
ISBN: 9789892021577
Category : Fire weather
Languages : en
Pages : 355
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Book Description
Author: Max J. Friedlander
Publisher: Read Books Ltd
ISBN: 1447495381
Category : Art
Languages : en
Pages : 250
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Book Description
AMONG art historians of to-day there is hardly anyone who enjoys a position comparable to that of Dr. Max J. Friedländer. He is universally recognized as being probably the greatest living expert, notably, of course, on the early Netherlandish and German masters; and in normal times not a day passed on which pictures were not submitted to him for opinion from all parts of the world. But he is much more than the mere, if accomplished, expert, worried without respite by people eager for his verdict on their possessions: the list of his writings—all of them revealing the outlook of the born historian—makes a truly imposing series, culminating in his monumental History of Early Netherlandish Painting issued from 1924 onwards in fourteen substantial volumes. And for a long time the whole of this ceaseless activity had for its background Dr. Friedländer’s connection with the Berlin Picture Gallery and Print Room: their marvellous growth during the period in question owes in fact an enormous debt to the distinguished scholar, whose career as an official came to an end in 1933, when Dr. Friedländer relinquished the post as Head of the great Picture Gallery, to which he had been appointed as Wilhelm von Bode’s successor. It is, indeed, the very aroma of that institution in its best days which pervades the whole activity of one of the greatest of those who stand to it in the relation of at once alumnus and creator.
Author: Margaret Jourdain
Publisher: Hassell Street Press
ISBN: 9781014570581
Category :
Languages : en
Pages : 162
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: American Association of Museums
Publisher:
ISBN:
Category : Museums
Languages : en
Pages : 210
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Book Description
Each vol. contains a list of members.
