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Cerium Oxide Applications And Attributes
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Download or read book Cerium Oxide written by Sher Bahadar Khan and published by BoD – Books on Demand. This book was released on 2019-01-23 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the chemical structure and applications of CeO2. It covers the recent developments in a wide range of CeO2 applications, particularly catalysis corrosion protection, fuel cells, sensors, and UV-blocking. It also provides a concise but thorough coverage of the chemical structure and applications of CeO2. Thus, this book provides an overview of chemical structure, applications, and recent attributes of CeO2 for a broad audience, including beginners, graduate students, and specialists in both academic and industrial sectors.
Book Synopsis Cerium Oxide (CeO2): Synthesis, Properties and Applications by : Salvatore Scire
Download or read book Cerium Oxide (CeO2): Synthesis, Properties and Applications written by Salvatore Scire and published by Elsevier. This book was released on 2019-08-21 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerium Oxide (CeO2): Synthesis, Properties and Applications provides an updated and comprehensive account of the research in the field of cerium oxide based materials. The book is divided into three main blocks that deal with its properties, synthesis and applications. Special attention is devoted to the growing number of applications of ceria based materials, including their usage in industrial and environmental catalysis and photocatalysis, energy production and storage, sensors, cosmetics, radioprotection, glass technology, pigments, stainless steel and toxicology. A brief historical introduction gives users background, and a final chapter addresses future perspectives and outlooks to stimulate future research. The book is intended for a wide audience, including students, academics and industrial researchers working in materials science, chemistry and physics. Addresses a wide range of applications of ceria-based materials, including catalysis, energy production and storage, sensors, cosmetics and toxicology Provides the fundamentals of ceria-based materials, including synthesis methods, materials properties, toxicology and surface chemistry Includes nanostructured ceria-based materials and a discussion of future prospects and outlooks
Book Synopsis Cerium Oxide - Applications and Attributes by : Kalsoom Akhtar
Download or read book Cerium Oxide - Applications and Attributes written by Kalsoom Akhtar and published by . This book was released on 2019 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the chemical structure and applications of CeO2. It covers the recent developments in a wide range of CeO2 applications, particularly catalysis corrosion protection, fuel cells, sensors, and UV-blocking. It also provides a concise but thorough coverage of the chemical structure and applications of CeO2. Thus, this book provides an overview of chemical structure, applications, and recent attributes of CeO2 for a broad audience, including beginners, graduate students, and specialists in both academic and industrial sectors.
Book Synopsis Cerium Oxide Nanoparticles and Gadolinium Integration by : Peter Eriksson
Download or read book Cerium Oxide Nanoparticles and Gadolinium Integration written by Peter Eriksson and published by Linköping University Electronic Press. This book was released on 2019-08-29 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A challenging task, in the area of magnetic resonance imaging is to develop contrast enhancers with built-in antioxidant properties. Oxidative stress is considered to be involved in the onset and progression of several serious conditions such as Alzheimer’s and Parkinson’s disease, and the possibility to use cerium-contained nanoparticles to modulate such inflammatory response has gained a lot of interest lately. The rare earth element gadolinium is, due to its seven unpaired f-electrons and high symmetry of the electronic state, a powerful element for contrast enhancement in magnetic resonance imaging. Chelates based on gadolinium are the most commonly used contrast agents worldwide. When introducing external contrast agents there is always a risk that it may trigger inflammatory responses, why there is an urgent need for new, tailor-made contrast agents. Small sized cerium oxide nanoparticles have electronic structures that allows coexistence of oxidation states 3+ and 4+ of cerium, which correlates to applicable redox reactions in biomedicine. Such cerium oxide nanoparticles have recently shown to exhibit antioxidant properties both in vitro and in vivo, via the mechanisms involving enzyme mimicking activity. This PhD project is a comprehensive investigation of cerium oxide nanoparticles as scaffold materials for gadolinium integration. Gadolinium is well adopted into the crystal structure of cerium oxide, enabling the combination of diagnostic and therapeutic properties into a single nanoparticle. The main focus of this thesis project is to design cerium oxide nanoparticles with gadolinium integration. A stepwise approach was employed as follows: 1) synthesis with controlled integration of gadolinium, 2) material characterization by means of composition crystal structure, size, and size distribution and 3) surface modification for stabilization. The obtained nanoparticles exhibit remarkable antioxidant capability in vitro and in vivo. They deliver strongly enhanced contrast per gadolinium in magnetic resonance imaging, compared to commercially available contrast agents. A soft shell of dextran is introduced to encapsulate the cerium oxide nanoparticles with integrated gadolinium, which protects and stabilizes the hard core and to increases their biocompatibility. The dextran-coating is clearly shown to reduce formation of a protein corona and it improves the dispersibility of the nanoparticles in cell media. Functionalization strategies are currently being studied to endow these nanoparticles with specific tags for targeting purposes. This will enable guidance of the nanoparticles to a specific tissue, for high local magnetic resonance contrast complemented with properties for on-site reduced inflammation. In conclusion, our cerium oxide nanoparticles with integrated gadolinium, exhibit combined therapeutic and diagnostic, i.e. theragnostic capabilities. This type of nanomaterial is highly promising for applications in the field of biomedical imaging.
Book Synopsis Synthesis, Kinetic Control and Properties Engineering of Cerium Oxide Nanoparticles for Biomedical Applications by : Tetyana Yudina
Download or read book Synthesis, Kinetic Control and Properties Engineering of Cerium Oxide Nanoparticles for Biomedical Applications written by Tetyana Yudina and published by . This book was released on 2016 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: La presente Tesis Doctoral es un fruto de colaboración entre el Instituto Catalán de Nanociencia y Nanotecnología (ICN2) y el Hospital Clínic de Barcelona, implicados en el proyecto "Marató TV3 2012", con el objetivo de utilizar las nanopartículas de óxido de Cerio (CeO2 Nps o "nanoceria") como una nueva herramienta terapéutica en la regeneración del tejido hepático en las enfermedades del hígado. CeO2NPs son un material inorgánico fascinante, con una gran variedad de aplicaciones y muchas más por llegar. Lo que las hace tan interesantes es su alta capacidad de hacer de buffer de electrones en un entorno oxidante/reductor, gracias a su estructura electrónica incompleta en la capa 4f. Ésto hace posible que presente una habilidad de ser oxidada o reducida, seguida de captura o liberación de oxígeno o especies reactivas de oxígeno (ROS y los radicales libres, tales como OH·). Como consecuencia, nanoceria se comporta como una esponga natural de electrones libres. El desequilibrio de ROS tiene lugar en un gran número de enfermedades humanas. También, la sobreproducción de ROS es crítica en la neurodegeneración. A pesar de la atractiva capacidad antioxidante de CeO2 NPs, una controversia importante, en cuanto a su función biológica, fue descrita en la literatura actual. A lo largo de ésta Tesis, los métodos existentes de síntesis de nanoceria han sido analizados en detalle, cómo también la calidad de los productos obtenidos y los aspectos toxicológicos de ámbos (los procesos y los productos). Éste trabajo de investigación fue enfocado en sobrepasar las problemáticas existentes de la toxicidad de nanoceria (debida a la agregación de nanopartículas, la toxicidad del surfactante o el solvente, o a la contaminación de las muestras con endtoxina) y en diseño de soluciones útiles, con el objetivo de sacar el provecho máximo de las propiedades antioxidantes de CeO2NPs en recerca y aplicaciones biomédicos. Asimismo, el presente trabajo fue centrado en el estudio de las propiedades físico-químicas y bio-quimicas de nanoceria, para optimizar su preparación y tamaño (Capitulo 2), evaluar su reactividad (Capitulo 3), biodistribución (Capitulo 4) y no-toxicidad (Capitulo 2, Anexo 2). Finalmente, la biodistribución de nanoceria y sus efectos sobre los mediadores fibrogénicos e inflamatorios fueron evaluados a nivel molecular y celular, demostrando que la administración de CeO2NPs podría ser de interés terapéutico en enfermedades del hígado (Anexo 3).
Book Synopsis Cerium-Based Materials: Synthesis, Properties and Applications by : Ramesh Chandra
Download or read book Cerium-Based Materials: Synthesis, Properties and Applications written by Ramesh Chandra and published by Bentham Science Publishers. This book was released on 2023-05-23 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerium is the most abundant metal of rare-earth elements. It can be used to make materials such as phosphors and alloys, that have applications in various applied fields (like electronics, magnetics and heterogeneous catalysis) and devices (like catalytic converters and gas mantles). Cerium-Based Materials: Synthesis, Properties and Applications presents detailed knowledge about cerium materials. Starting with the history of cerium-based materials, it gives an introduction to the synthesis of chemicals like cerium oxides and composites. This is followed by information about characterization of cerium nanoparticles and industrial applications of cerium-based materials, with a focus on catalysis, biomedical engineering and pharmaceutical chemistry. This book is an essential reference for researchers and chemical engineers who want a summary of cerium materials and its applications.
Download or read book Cerium Oxide written by Jorben Gerritzen and published by Nova Science Publishers. This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Cerium oxide is a pale yellow-white powder with commercial applications in optics and welding, among other domains. This book explores the synthesis, properties and applications of cerium oxide. Chapter One exposes the different types of cerium oxide nanostructures, with emphasis on the nanotubular structure, the synthesis process, and the influence of using heat treatment. Chapter Two reviews the principal synthetic methodologies used to form cerium oxide and develop its activity. Chapter Three describes the use of metal-doped cerium oxide nanoparticles for the degradation of dyes. Lastly, Chapter Four assesses the catalytic activity of cerium oxide species towards selective catalytic reduction of SO2 with CH4"--
Download or read book Cerium written by Nader Shehata and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerium is one of the most important lanthanide elements based on its characteristics and wide range of related applications. Cerium is the second element in the lanthanide series, and mostly can be found in either +3 or +4 ionisation states. It can be considered one of the rare earth elements with relatively low toxicity and a lot of biological applications depending on its redox (reduction-oxidation) process between the +3/+4 ionisation states and oxygen storage capability. This book focuses on the cerium compounds such as oxides and silicides, with detailed studies about its structures, characterisations and related applications. Chapter One mainly presents some optical characteristics of stoichiometric ceria nanoparticles whether undoped or doped with some other lanthanide elements. Then, some applications of ceria nanoparticles, such as optical nanosensors and solar cell coaters, are discussed based on optical characteristics of CeO2-x. Chapter Two studies the catalytic activity of cerium dioxide (CeO2) included within nanophase (nanocomposite) metal-oxide systems such as Al2O3/cordierite carriers and prototypes of anode materials for SOFCs (based on stabilised zirconia), within different processes of environmental catalysis. CeO2 increases stability of the Ni-Al2O3 catalysts by suppressing surface carbonisation and enhancing resistance to poisoning by sulphur compounds. Cerium dioxide as a modifying additive within the ZnOCuOCeO2/Al2O3/cordierite catalysts is shown to stabilise their operation in the decomposition of methanol by suppressing surface carbonisation, thereby facilitating hydrogen formation as the target product. In Chapter Three, another cerium-dependent compound cerium silicide (CeSix) and its nanowires were investigated over a broad range of different cerium monolayers on Si(110)-16×2 surfaces via scanning, tunnelling, microscopy and spectroscopy. The growth progress of the CeSix nanowires undergoes a coverage-dependent metal-insulator-metal electronic transition, which has never been found in other rare-earth silicide nanowires. Moreover, the insulating CeSix nanowires have been structurally and electronically studied, without lattice distortions with large Coulomb repulsion energy between the filled and empty surface bands. Thus, the insulating phase of atomically precise CeSix nanowires is an electronically driven phase because of its temperature and structure independence. Chapter Four is mainly concerned with some biological applications of ceria nanostructures through the treatment of diseases characterised by increased oxidative stress levels. This chapter offers a study of consumption and occupational exposures, and consequently its toxicology properties are discussed due to the recent applications of nanoceria as a high priority material for toxicological evaluations.
Book Synopsis Cerium Oxide Nanostructures and Their Applications by : Adnan Younis
Download or read book Cerium Oxide Nanostructures and Their Applications written by Adnan Younis and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to excellent physical and chemical properties, cerium oxide (ceria, CeO2) has attracted much attention in recent years. This chapter aimed at providing some basic and fundamental properties of ceria, the importance of oxygen vacancies in this material, nano-size effects and various synthesis strategies to form diverse structural morphologies. Finally, some key applications of ceria-based nanostructures are reviewed. We conclude this chapter by expressing personal perspective on the probable challenges and developments of the controllable synthesis of CeO2 nanomaterials for various applications.
Book Synopsis The Electrical Properties of Nanocyrstalline Cerium Oxide by : Erin Baker Lavik
Download or read book The Electrical Properties of Nanocyrstalline Cerium Oxide written by Erin Baker Lavik and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Non-Stoichiometry in the Functional Properties of Oxide Materials by : Maria Veronica Ganduglia-Pirovano
Download or read book The Role of Non-Stoichiometry in the Functional Properties of Oxide Materials written by Maria Veronica Ganduglia-Pirovano and published by Frontiers Media SA. This book was released on 2019-12-09 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Binary Rare Earth Oxides by : G. Adachi
Download or read book Binary Rare Earth Oxides written by G. Adachi and published by Springer Science & Business Media. This book was released on 2006-07-10 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Binary Rare Earth Oxides is the first book in the field of rare earth oxides that provides coverage from the basic science through to recent advances. This book introduces the unique characteristics of the binary rare earth oxides with their chemistry, physics and applications. It provides a comprehensive review of all the characteristics of rare earth oxides, essential for scientists and engineers involved with rare earths, oxides, inorganic materials, ceramics, and structures. The binary rare earth oxides bring us a variety of interesting characteristics. Understanding their fundamental mechanisms builds a bridge between solid-state chemistry and materials science. The book begins with a brief introduction to binary rare earth oxides, their physical and chemical stabilities, polymorphism, crystal structures and phase transformation and the association with current applications. The book goes on to present the band structure of the oxides using several quantum chemical calculations, which belong to a newly developed area in the binary rare earth oxides. Central to this chapter are the characterizations of electrical, magnetic and optical properties, as well as details of single crystal growth and particle preparation methods that have progressed in recent years. Later chapters concentrate on thermo-chemical properties and trace determination techniques. The final chapter contains a variety of useful applications in various fields such as phosphors, glass abrasives, automotive catalysts, fuel cells, solid electrolytes, sunscreens, iron steels, and biological materials. This book is an invaluable resource for materials scientists and solid-state physicists and chemists with an interest in rare earth oxides, as well as advanced students and graduates who require an approach to familiarize them with this field. This book provides guidance through a comprehensive review of all the characteristics of binary rare earth oxides.
Download or read book Rare Earth Materials written by A.R. Jha and published by CRC Press. This book was released on 2014-06-17 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies indicate that China accounts for about 96 percent of the world's supply of rare earth materials (REMs). With REMs becoming increasingly important for a growing number of high-tech applications, appropriate action must be taken to mitigate the effects of a shortage of critical REMs in defense systems and components.Bringing together i
Book Synopsis The Preparation and Properties of Metallic Cerium by : Alcan Hirsch
Download or read book The Preparation and Properties of Metallic Cerium written by Alcan Hirsch and published by . This book was released on 1911 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Structural and Magnetic Properties of Copper Doped Cerium Oxide Nanoparticles by :
Download or read book Synthesis, Structural and Magnetic Properties of Copper Doped Cerium Oxide Nanoparticles written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Electrical Properties of Pure and Doped Nanocyrstalline Cerium Oxide by : Erin Baker Lavik
Download or read book The Electrical Properties of Pure and Doped Nanocyrstalline Cerium Oxide written by Erin Baker Lavik and published by . This book was released on 1997 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some AC Electrical Properties of Cerium Oxide by : James Burroughs Armstrong
Download or read book Some AC Electrical Properties of Cerium Oxide written by James Burroughs Armstrong and published by . This book was released on 1965 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
