Synthèse Et Caractérisation de Catalyseurs À L'échelle Nanométrique PDF Download
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Author: Tarik Rhadfi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Tarik Rhadfi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: MARIA DO CARMO.. MARTINS ALVES
Publisher:
ISBN:
Category :
Languages : fr
Pages : 158
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Book Description
CE TRAVAIL EST CONSACRE A L'ETUDE DE L'INFLUENCE DU TRAITEMENT THERMIQUE SUR LES PROPRIETES CATALYTIQUE POUR LA REACTION DE REDUCTION DE O#2 DE CATALYSEURS A BASE DE CO ET DE FE. LA DETERMINATION PRECISE DU CENTRE CATALYTIQUE A ETE FAITE APRES UNE CORRELATION ENTRE LES PROPRIETES ELECTROCHIMIQUES ET LA STRUCTURE DES DIFFERENTS CATALYSEURS. NOUS AVONS MIS EN UVRE DIFFERENTES TECHNIQUES COMME LA VOLTAMMETRIE CYCLIQUE, LA SPECTROSCOPIE D'ABSORPTION DES RAYONS X AUX SEUILS K (CO,FE,N,O,C). NOUS AVONS EGALEMENT FAIT APPEL A LA MICROSCOPIE ELECTRONIQUE A TRANSMISSION (MET). LA PREMIERE PARTIE CONCERNE LA CARACTERISATION PHYSICO-CHIMIQUE DE CATALYSEURS A BASE DE CO (FE)/CHARBON ET POLYACRYLONITRILE (PAN)/ACETATE DE CO (OU FE)/CHARBON. POUR CES SYSTEMES LA CATALYSE DE LA REDUCTION DE O#2 EST DUE A LA SYNTHESE DE PETITS AMAS DE CO METAL (20-30 A). PAR CONTRE AVEC LES CATALYSEURS A BASE DE FER LE TRAITEMENT THERMIQUE PROVOQUE UNE DIMINUTION D'ACTIVITE ASSOCIEE A LA FORMATION DE CARBURE DE FER. LA SECONDE PARTIE EST CONSACREE A L'ETUDE DE L'INFLUENCE DE L'AZOTE DANS LES MATRICES DU TYPE PAN+ ACETATE DE CO/CHARBON. POUR CELA NOUS AVONS ETUDIE DIFFERENTS SYSTEMES OU NOUS AVONS REMPLACE LE POLYACRYLONITRILE PAR DIFFERENTS POLYMERES NON AZOTES AVEC OU SANS GROUPEMENTS CHIMIQUES. CETTE ETUDE A REVELE QUE DES PHENOMENES DE COMPLEXATION SE PRODUISENT LORS DE LA SYNTHESE DE CES MATERIAUX CONDUISANT A DE TRES BONNES PROPRIETES CATALYTIQUES
Author: Leslie Rainer
Publisher: Getty Publications
ISBN: 1606060430
Category : Architecture
Languages : fr
Pages : 438
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Book Description
Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Author: Jun Li
Publisher: CRC Press
ISBN: 1466551526
Category : Medical
Languages : en
Pages : 517
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Book Description
Biosensors Based on Nanomaterials and Nanodevices links interdisciplinary research from leading experts to provide graduate students, academics, researchers, and industry professionals alike with a comprehensive source for key advancements and future trends in nanostructured biosensor development. It describes the concepts, principles, materials, device fabrications, functions, system integrations, and applications of various types of biosensors based on signal transduction mechanisms, including fluorescence, photonic crystal, surface-enhanced Raman scattering, electrochemistry, electro-luminescence, field-effect transistor, and magnetic effect. The book: Explains how to utilize the unique properties of nanomaterials to construct nanostructured biosensors to achieve enhanced performance Features examples of biosensors based on both typical and emerging nanomaterials, such as gold nanoparticles, quantum dots, graphene, graphene oxides, magnetic nanoparticles, carbon nanotubes, inorganic nanowires/nanorods, plasmonic nanostructures, and photonic crystals Demonstrates the broad applications of nanostructured biosensors in environmental monitoring, food safety, industrial quality assurance, and in vitro and in vivo health diagnosis Inspires new ideas for tackling multiscale and multidisciplinary issues in developing high-performance biosensors for complex practical biomedical problems Focusing on the connection between nanomaterials research and biosensor development, Biosensors Based on Nanomaterials and Nanodevices illustrates the exciting possibilities and critical challenges of biosensors based on nanomaterials and nanodevices for future health monitoring, disease diagnosis, therapeutic treatments, and beyond.
Author: Dunwei Wang
Publisher: World Scientific
ISBN: 1786343649
Category : Science
Languages : en
Pages : 836
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Book Description
The use of nanomaterials in energy conversion and storage represents an opportunity to improve the performance, density and ease of transportation in renewable resources. This book looks at the most recent research on the topic, with particular focus on artificial photosynthesis and lithium-ion batteries as the most promising technologies to date. Research on the broad subject of energy conversion and storage calls for expertise from a wide range of backgrounds, from the most fundamental perspectives of the key catalytic processes at the molecular level to device scale engineering and optimization. Although the nature of the processes dictates that electrochemistry is a primary characterization tool, due attention is given to advanced techniques such as synchrotron studies in operando. These studies look at the gap between the performance of current technology and what is needed for the future, for example how to improve on the lithium-ion battery and to go beyond its capabilities.Suitable for students and practitioners in the chemical, electrochemical, and environmental sciences, Nanomaterials for Energy Conversion and Storage provides the information needed to find scalable, economically viable and safe solutions for sustainable energy.
Author: Xin Tong
Publisher: Springer Nature
ISBN: 3030465969
Category : Science
Languages : en
Pages : 331
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Book Description
This book outlines various synthetic approaches, tuneable physical properties, and device applications of core/shell quantum dots (QDs). Core/shell QDs have exhibited enhanced quantum yield (QY), suppressed photobleaching/blinking, and significantly improved photochemical/physical stability as compared to conventional bare QDs. The core-shell structure also promotes the easy tuning of QDs’ band structure, leading to their employment as attractive building blocks in various optoelectronic devices. The main objective of this book is to create a platform for knowledge sharing and dissemination of the latest advances in novel areas of core/shell QDs and relevant devices, and to provide a comprehensive introduction and directions for further research in this growing area of nanomaterials research.
Author: Bo Song
Publisher: Springer
ISBN: 3319224522
Category : Technology & Engineering
Languages : en
Pages : 265
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Book Description
Dynamic Behavior of Materials, Volume 1 represents the first of nine volumes of technical papers presented at the Society for Experimental Mechanics SEM 15th International Congress & Exposition on Experimental and Applied Mechanics, held at Costa Mesa, California, June 8-11, 2015. The full set of proceedings also includes volumes on: Challenges in Mechanics of Time Dependent Materials, Advancement of Optical Methods in Experimental Mechanics, Experimental and Applied Mechanics 16th International Symposium on MEMS and Nanotechnology, 5th International Symposium on the Mechanics of Biological Systems and Materials, International Symposium on the Mechanics of Composite and Multi-functional Materials, Fracture, Fatigue, Failure and Damage Evolution; and Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems.
Author: Jean-Marie Basset
Publisher: John Wiley & Sons
ISBN: 3527627103
Category : Science
Languages : en
Pages : 725
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Book Description
Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.
Author: Matthias Gross
Publisher: Routledge
ISBN: 1317964675
Category : Business & Economics
Languages : en
Pages : 427
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Book Description
Once treated as the absence of knowledge, ignorance today has become a highly influential topic in its own right, commanding growing attention across the natural and social sciences where a wide range of scholars have begun to explore the social life and political issues involved in the distribution and strategic use of not knowing. The field is growing fast and this handbook reflects this interdisciplinary field of study by drawing contributions from economics, sociology, history, philosophy, cultural studies, anthropology, feminist studies, and related fields in order to serve as a seminal guide to the political, legal and social uses of ignorance in social and political life. Chapter 33 of this book is freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license available here: https://tandfbis.s3-us-west-2.amazonaws.com/rt-files/docs/Open+Access+Chapters/9780415718967_oachapter33.pdf
Author: Gianfranco Pasut
Publisher: Elsevier
ISBN: 9780444640819
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Polymer-Protein Conjugates: From Pegylation and Beyond helps researchers by offering a unique reference and guide into this fascinating area. Sections cover the challenges surrounding the homogeneity of conjugates, their purity and polymer toxicity on long-term use, and how to deal with the risk of immunogenicity. These discussions help researchers design new projects by taking into account the latest innovations for safe and site selective polymer conjugation to proteins. PEG has been the gold standard and likely will play this role for many years, but alternatives are coming into the market, some of which have already been launched. After five decades of improvements, the ideas in this book are entering into a new era of innovation because of the advances in genetic engineering, biochemistry and a better understanding of the results from clinical use of PEG conjugates in humans.
