Author
R. M. Cornell
Bio: R. M. Cornell is an academic researcher from University of Bern. The author has contributed to research in topics: Adsorption & Akaganéite. The author has an hindex of 8, co-authored 13 publications receiving 8836 citations.
Topics: Adsorption, Akaganéite, Ferrihydrite, Lepidocrocite, Dissolution
Papers
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Book•
25 Sep 2003
TL;DR: In this article, the authors introduce the concept of iron oxides and their properties, including surface chemistry and Colloidal stability, as well as their properties in terms of surface area and porosity.
Abstract: 1. Introduction to the Iron Oxides. 2. Crystal Structure. 3. Cation Substitution. 4. Crystal Morphology and Size. 5. Surface Area and Porosity. 6. Electronic, Electrical and Magnetic Properties. 7. Characterization. 8. Thermodynamics. 9. Solubility. 10. Surface Chemistry and Colloidal Stability. 11. Adsorption of Ions and Molecules. 12. Dissolution. 13. Formation. 14. Transformations. 15. Rocks and Ores. 16. Soils. 17. Organisms. 18. Products of Iron Metal Corrosion. 19. Applications. 20. Synthesis. 21. Environmental Significance. References. Subject Index. Sources of Figures and Tables.
5,156 citations
Book•
01 Mar 1991
TL;DR: In this paper, the main aim of the second edition is to present reliable, well-tested, up-to-date methods of synthesizing pure iron oxides, including monodispersed particles, presently of great interest to industry.
Abstract: Iron Oxides play an important role in numerous disciplines. Since the publication of the first edition, there has been a surge of interest in synthetic fine to ultrafine iron oxides in a wide range of scientific and technological disciplines, especially in mineralogy, geosciences and environmental science and in various branches of technology. As before, the main aim of the second edition is to present reliable, well-tested, up-to-date methods of synthesizing pure iron oxides. The section on monodispersed particles, presently of great interest to industry, has been expanded. Furthermore the methods of characterization have been focused on their relevance to iron oxides. The well tried syntheses have been retained and some new ones have been incorporated.
2,286 citations
Book•
01 Jan 1996
TL;DR: An essential volume in industry and to all researchers who, whatever their background and level of experience, are interested in this rapidly expanding field as discussed by the authors, is a good resource for anyone interested in the field.
Abstract: An essential volume in industry and to all researchers who, whatever their background and level of experience, are interested in this rapidly expanding field.
1,144 citations
13 Jan 2004
79 citations
Cited by
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TL;DR: The scale of the problem in terms of population exposed to high As concentrations is greatest in the Bengal Basin with more than 40 million people drinking water containing ‘excessive’ As as mentioned in this paper.
6,741 citations
TL;DR: This review discusses the synthetic chemistry, fluid stabilization and surface modification of superparamagnetic iron oxide nanoparticles, as well as their use for above biomedical applications.
6,207 citations
TL;DR: This review focuses on the synthesis, protection, functionalization, and application of magnetic nanoparticles, as well as the magnetic properties of nanostructured systems.
Abstract: This review focuses on the synthesis, protection, functionalization, and application of magnetic nanoparticles, as well as the magnetic properties of nanostructured systems. Substantial progress in the size and shape control of magnetic nanoparticles has been made by developing methods such as co-precipitation, thermal decomposition and/or reduction, micelle synthesis, and hydrothermal synthesis. A major challenge still is protection against corrosion, and therefore suitable protection strategies will be emphasized, for example, surfactant/polymer coating, silica coating and carbon coating of magnetic nanoparticles or embedding them in a matrix/support. Properly protected magnetic nanoparticles can be used as building blocks for the fabrication of various functional systems, and their application in catalysis and biotechnology will be briefly reviewed. Finally, some future trends and perspectives in these research areas will be outlined.
5,956 citations
TL;DR: Practical Interests of Magnetic NuclearRelaxation for the Characterization of Superparamagnetic Colloid, and Use of Nanoparticles as Contrast Agents forMRI20825.
Abstract: 1. Introduction 20642. Synthesis of Magnetic Nanoparticles 20662.1. Classical Synthesis by Coprecipitation 20662.2. Reactions in Constrained Environments 20682.3. Hydrothermal and High-TemperatureReactions20692.4. Sol-Gel Reactions 20702.5. Polyol Methods 20712.6. Flow Injection Syntheses 20712.7. Electrochemical Methods 20712.8. Aerosol/Vapor Methods 20712.9. Sonolysis 20723. Stabilization of Magnetic Particles 20723.1. Monomeric Stabilizers 20723.1.1. Carboxylates 20733.1.2. Phosphates 20733.2. Inorganic Materials 20733.2.1. Silica 20733.2.2. Gold 20743.3. Polymer Stabilizers 20743.3.1. Dextran 20743.3.2. Polyethylene Glycol (PEG) 20753.3.3. Polyvinyl Alcohol (PVA) 20753.3.4. Alginate 20753.3.5. Chitosan 20753.3.6. Other Polymers 20753.4. Other Strategies for Stabilization 20764. Methods of Vectorization of the Particles 20765. Structural and Physicochemical Characterization 20785.1. Size, Polydispersity, Shape, and SurfaceCharacterization20795.2. Structure of Ferro- or FerrimagneticNanoparticles20805.2.1. Ferro- and Ferrimagnetic Nanoparticles 20805.3. Use of Nanoparticles as Contrast Agents forMRI20825.3.1. High Anisotropy Model 20845.3.2. Small Crystal and Low Anisotropy EnergyLimit20855.3.3. Practical Interests of Magnetic NuclearRelaxation for the Characterization ofSuperparamagnetic Colloid20855.3.4. Relaxation of Agglomerated Systems 20856. Applications 20866.1. MRI: Cellular Labeling, Molecular Imaging(Inflammation, Apoptose, etc.)20866.2.
5,915 citations
2,970 citations