Exoemission from Processed Solid Surfaces and Gas Adsorption, Momose

Автор: Edward Yu. Bormashenko
Название: Physics of Wetting: Phenomena and Applications of Fluids on Surfaces
ISBN: 3110444801 ISBN-13(EAN): 9783110444803
Издательство: Walter de Gruyter
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Описание: Motivated by a plethora of phenomena from nature, this textbook introduces into the physics of wetting of surfaces. After a brief discussion of the foundations of surface tension, its implementation for floating objects, capillary waves, bouncing droplets, walking of water striders, etc. is discussed. Furthermore, Marangoni flows, surface tension inspired instabilities, condensation and evaporation of droplets, liquid marbles, superhydrophobicity and superoleophobicity (lotus effect) are introduced. All relevant concepts are illustrated by the numerous qualitative and quantitative exercises. ContentsWhat is surface tension?Wetting of surfaces: the contact angleSurface tension-assisted floating of heavy and light objects and walking of water stridersCapillary interactions between particles. Particles placed on liquid surfaces. Elasticity of liquid surfaces, covered by colloidal particlesCapillary wavesOscillation of dropletsMarangoni flow and surface instabilitiesEvaporation of droplets. The Kelvin and the coffee-stain effectsCondensation, growth and coalescence of droplets and the breath-figure self-assemblyDynamics of wetting: bouncing, spreading and rolling of droplets (water hammer effect – water entry and drag-out problems)Superhydrophobicity and superoleophobicity: the Wenzel and Cassie wetting regimesThe Leidenfrost effect. Liquid marbles: self-propulsionPhysics, geometry, life and death of soap films and bubbles

Автор: Robin H A Ras
Название: Non-Wettable Surfaces: Theory, Preparation and Applications
ISBN: 1782621547 ISBN-13(EAN): 9781782621546
Издательство: Royal Society of Chemistry
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Цена: 252030.00 T
Наличие на складе: Нет в наличии.
Описание: This book integrates information about the theory, preparation and applications of non-wettable surfaces in one volume.

Автор: K. Christmann; H. J. Freund; J. Kim; B. Koel; H. K
Название: Adsorption of Molecules on Metal, Semiconductor and Oxide Surfaces
ISBN: 3540258485 ISBN-13(EAN): 9783540258483
Издательство: Springer
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Цена: 4276500.00 T
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Описание: Surface Science is understood as a relatively young scientific discipline, concerned with the physical and chemical properties of phenomena on clean and covered solid surfaces, studied under a variety of conditions.

Автор: Klaus Heinz, Lutz Hammer, M. Alexander Schneider, Thomas Fauster
Название: Surface Physics: Fundamentals and Methods
ISBN: 3110636689 ISBN-13(EAN): 9783110636680
Издательство: Walter de Gruyter
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Цена: 49530.00 T
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Описание:

This work introduces concisely into modern and experimental Surface Physics. Based on many years of teaching experience, the authors present surface-specific properties and complex processes in a plain and descriptive way. Ideal for exam preparation through tasks and comprehension questions.

Автор: Andre? Vladimirovich Kiselev; Ya.I. Yashin
Название: Gas-Adsorption Chromatography
ISBN: 1489962387 ISBN-13(EAN): 9781489962386
Издательство: Springer
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Цена: 81050.00 T
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Автор: Tharwat F. Tadros
Название: Nanodispersions
ISBN: 3110290332 ISBN-13(EAN): 9783110290332
Издательство: Walter de Gruyter
Цена: 86720.00 T
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Описание: General introduction - Definition of nanodispersions (nanosuspensions, nanoemulsions, swollen micelles or microemulsions, liposomes and vesicles) and their size range. General description of their colloid stability. Main advantages of nanodispersions and their industrial applications.Preparation of nanosuspensions by top-up process - Nucleation and growth and control of particle size distribution. Factors determining the formation of narrow particle size distribution. Role of surfactants and polymers. Preparation of nano-polymer colloids (lattices) by emulsion and dispersion polymerization. Factors affects the stability of nanosuspensions.Preparation of nanosuspensions by bottom down process - Dispersion of preformed particles in liquids and the need of a wetting agent. Break-up of aggregates and agglomerates by application of high speed stirrers. Reduction of particle size by application of intense energy (microfluidization or bead milling). Maintenance of the colloid stability of the resulting particles. Reduction of Ostwald ripening.Industrial applications of nanosuspensions - Application in pharmacy to enhance bioavailability, Application in sunscreens for UV protection. Application in paints and coatings.Preparation of nanoemulsions by the use of high pressure homogenisers - Principles of emulsion formation and the role of the emulsifier. Selection of emulsifiers. Methods of emulsification and prevention of coalescence during emulsification. Origin of colloid stability of nanoemulsions. Prevention of Ostwald ripeningLow energy methods for nanoemulsion preparation - The phase inversion composition method and the role of mixing the surfactant with oil and water. The phase inversion temperature method for preparation of nanoemulsions. Preparation of nanoemulsions by dilution of microemulsions.Practical examples of nanoemulsions and their industrial application - Nanoemulsions based on non-ionic surfactants and the role of the hydrophilic-lipophilic balance. Effect of oil solubility on the stabilityof nanoemulsions. Nanoemulsions based on polymeric surfactants. Applications in pharmacy and cosmetics.Swollen micelles or microemulsionsDefinition of microemulsions and their size range. Thermodynamic definition of microemulstions. Theories of microemulsion formation and stability. Characterisation of microemulsions using scattering, conductivity and NMR rechniques.Formulation of microemulsions and their industrial applications - Distinction between microemulsions and macroemulsions. Formulation of oil/water and water/oil microemulsions. Selection of emulsifiers for microemulsions. Application of microemulsions in tertiary oil recovery.Liposomes and vesicles - Formation of multilamellar lipid layers (liposomes) by dispersion of lipids in water. Formation of unilamellar vesicles by sonication of the liposomes. Factors responsible for stabilisation of liposomes and vesicles. Use of block copolymers to enhance the stability of vesicles. Applications of liposomes and vesicles in pharmacy and cosmetics.

Автор: Amabilino, Amabilino David B.
Название: Supramolecular Chemistry at Surfaces
ISBN: 1849739528 ISBN-13(EAN): 9781849739528
Издательство: Royal Society of Chemistry
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Описание: A complete overview of the different methods of preparing and studying self-assembled structures at surfaces and interfaces.

Автор: Tharwat F. Tadros
Название: Emulsions: Formation, Stability, Industrial Applications
ISBN: 3110452170 ISBN-13(EAN): 9783110452174
Издательство: Walter de Gruyter
Цена: 74320.00 T
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Описание: Chapter 1 General IntroductionDefinition of emulsions and the role of the emulsifier. Classification based on the nature of the emulsifier. Classification based on the structure of the system. General instability problems with emulsions : creaming/sedimentation, flocculation, Ostwald ripening, coalescence and phase inversion. Importance of emulsions in various industrial applications. Chapter 2 Thermodynamics of Emulsion Formation and BreakdownApplication of the second law of thermodynamics for emulsion formation : Balance of energy and entropy and non-spontaneous formation of emulsions. Breakdown of the emulsion by flocculation and coalescence in the absence of an emulsifier. Role of the emulsifier in preventing flocculation and coalescence by creating an energy barrier resulting from the repulsive energies between the droplets. Chapter 3 Interaction Forces between Emulsion DropletsVan der Waals attraction and its dependence on droplet size, Hamaker constant and separation distance between the droplets. Electrostatic repulsion resulting from the presence of electrical double layers and its dependence on surface (or zeta) potential and electrolyte concentration and valency. Combination of the van der Waals attraction with double layer repulsion and the theory of colloid stability. Steric repulsion resulting from the presence of adsorbed non-ionic surfactants and polymers. Combination of van der Waals attraction with steric repulsion and the theory of steric stabilisation. Chapter 4 Adsorption of Surfactants at the Oil/Water InterfaceThermodynamic analysis of surfactant adsorption and the Gibbs adsorption isotherm. Calculation of the amount of surfactant adsorption and area per surfactant molecule at the interface. Experimental techniques for measuring the interfacial tension. Chapter 5 Mechanism of Emulsification and the Role of the EmulsifierDescription of the factors responsible for droplet deformation and its break-up. Role of surfactant in preventing coalescence during emulsification. Definition of the Gibbs dilational elasticity and the Marangoni effect in preventing coalescence. Chapter 6 Methods of EmulsificationPipe flow, static mixers and high speed stirrers (rotor-stator mixer). Laminar and turbulent flow. Membrane emulsification. High pressure homogenisers and ultrasonic methods. Chapter 7 Selection of EmulsifiersThe hydrophilic-lipophilic-balance (HLB) and its application in surfactant selection. Calculation of HLB numbers and the effect of the nature of the oil phase. The phase inversion temperature (PIT) method for emulsifier selection. The cohesive energy ratio method for emulsifier selection. Chapter 8 Creaming/Sedimentation of Emulsions and its preventionDriving force for creaming/sedimentation: effect of gravity, droplet size and density difference between the oil and continuous phase. Calculation of the rate of creaming/sedimentation in dilute emulsions. Influence of increase of the volume fraction of the disperse phase on the rate of creaming/sedimentation. Reduction of creaming/sedimentation: Balance of the density of the two phases, reduction of droplet size and effect of addition of ''thickeners'. Chapter 9 Flocculation of Emulsions and its PreventionFactors affecting flocculation. Calculation of fast and slow flocculation rate. Definition of stability ratio and its dependence on electrolyte concentration and valency. Definition of the critical coagulation concentration and its dependence on electrolyte valency. Reduction of flocculation by enhancing the repulsive forces. Chapter 10 Ostwald Ripening and its ReductionFactors responsible for Ostwald ripening : difference in solubility between small and large droplets and the Kelvin equation. Calculation of the rate of Ostwald ripening. Reduction of Ostwald ripening by incorporation of a small amount of highly insoluble oil. Reduction of Ostwald ripening by the use of strongly adsorbed polymeric surfactant and enhancement of the Gibbs elasticity. Chapter 11 Emulsion Coalescence and its PreventionDriving force for emulsion coalescence : Thinning and disruption of the liquid film between the droplets. The concept of disjoining pressure for prevention of coalescence. Methods for reduction or elimination of coalescence : Use of mixed surfactant films, use of lamellar liquid crystalline phases and use of polymeric surfactants. Chapter 12 Phase Inversion and its PreventionDistinction between catastrophic and transient phase inversion. Influence of the disperse volume fraction and surfactant HLB number. Explanation of the factors responsible for phase inversion. Chapter 13 Characterisation of EmulsionsMeasurement of droplet size distribution : Optical microscopy and image analysis. Phase contrast and polarising microscopyDiffraction methods. Confocal laser microscopy. Back scattering methods Chapter 14 Industrial Application of Emulsions14.1 Application in Pharmacy14.2 Application in Cosmetics 14.3 Application in Agrochemicals14.4 Application in Paints14.5 Application in the Oil Industry

Автор: Domb Abraham J., Kunduru Konda Reddy, Farah Shady
Название: Antimicrobial Materials for Biomedical Applications
ISBN: 1788011880 ISBN-13(EAN): 9781788011884
Издательство: Royal Society of Chemistry
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Цена: 252030.00 T
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Описание: This book provides the field with a much-needed fundamental overview of the science, addressing the chemistry of a broad range of biomaterial types, and their applications in the biomedical industry.

Автор: Vsevolod F. Kiselev; Oleg V. Krylov
Название: Electronic Phenomena in Adsorption and Catalysis on Semiconductors and Dielectrics
ISBN: 3642830226 ISBN-13(EAN): 9783642830228
Издательство: Springer
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Цена: 69650.00 T
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Описание: The research done in this field will help to widen the scope of semi- conductor applications by finding novel ways of employing surface effects in the construct ion of mi croe 1 ectroni c devi ces, semi conductor gas ana lysers, solar cells, etc.

Автор: Vsevolod F. Kiselev; Oleg V. Krylov
Название: Adsorption and Catalysis on Transition Metals and Their Oxides
ISBN: 3642738893 ISBN-13(EAN): 9783642738890
Издательство: Springer
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Описание: This book deals with adsorption and catalysis on the surface of transition elements and their compounds, many of which are in- teresting because of their particular electronic structure. Consideration is given mostly to simple (as opposed to mixed) oxides of transition elements, to common metals and to the adsorption of simple gases.

Автор: Vsevolod F. Kiselev; Oleg V. Krylov
Название: Adsorption Processes on Semiconductor and Dielectric Surfaces I
ISBN: 3642820530 ISBN-13(EAN): 9783642820533
Издательство: Springer
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Цена: 121110.00 T
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Описание: This book deals with various physical and chemical phenomena associated with the interaction of a solid surface in a gaseous environment. A great deal of attention is paid to considering th~ nature of ac- tive surface sites responsible for chemisorption, catalytic conversion of adsorbed molecules, and certain electronic surface phenomena.