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BL
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| Record Number
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865539
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| Main Entry
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Smirnov, Evgeny
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| Title & Author
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Assemblies of gold nanoparticles at liquid-liquid interfaces : : from liquid optics to electrocatalysis /\ Evgeny Smirnov.
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| Publication Statement
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Cham, Switzerland :: Springer,, [2018]
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, ©2018
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| Series Statement
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Springer theses
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| Page. NO
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1 online resource
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| ISBN
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3319779133
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: 3319779141
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: 9783319779133
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: 9783319779140
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9783319779133
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| Notes
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"Doctoral thesis accepted by the Swiss Federa; Institute of Technology, Lausanne, Switzerland."
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| Bibliographies/Indexes
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Includes bibliographical references.
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| Contents
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Intro; Supervisor's Foreword; Parts of this thesis have been published in the following journal articles:; Acknowledgements; Contents; Abbreviations; Symbols; 1 Introduction; 1.1 Liquid-Liquid Interfaces: Structure and Galvani Potential Difference; 1.1.1 Structure of Liquid-Liquid Interfaces; 1.1.2 Thermodynamics of Electron and Ion Transfer Reactions Across ITIES. BATB Assumption; 1.2 Equilibration of the Fermi Levels; 1.2.1 Equilibration of Fermi Level Between NPs and Species in Solution; 1.2.2 Electron Transfer at a Liquid-Liquid Interface (LLI).
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1.3 Gold Nanoparticles: Synthesis and Properties1.3.1 Short Review on AuNPs Synthesis; 1.3.2 Synthetic Details and Structure of Citrate-Stabilized AuNPs; 1.3.3 "Free Electrons Gas" Model and Optical Properties of Metal Nanoparticles; 1.4 Self-assembly of Nano- and Microparticles at Liquid Interfaces; 1.4.1 Theoretical Clues on Interaction Between a Single Particle and a Liquid-Liquid Interface; 1.4.2 Wetting Properties: Nano Versus Macro; 1.4.3 Review on Practical Methods to Settle Particles at Liquid-Liquid or Liquid-Air Interfaces.
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2.2.4 X-Ray Photoluminescence Spectroscopy2.2.5 Interfacial Raman Microscopy; 2.2.6 Electrochemical Measurements; 2.2.7 Drop Shape Analysis; 2.3 Synthesis of Aqueous Colloidal AuNP Solution; 2.3.1 Turkevich-Frens Method; 2.3.2 Seed-Mediated Growth; 2.4 AuNP Size Distributions and Concentrations; 2.4.1 Theoretical Aspects; 2.4.2 Practical Aspects; 2.5 Gold Metal Liquid-Like Droplets (MeLLDs): Preparation and Surface Coverage Evaluation; 2.5.1 MeLLDs Preparation Procedure; 2.5.2 The Droplet Surface Area and Estimation of the Surface Coverage.
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2.6 Modifying a Soft Interface with a Flat AuNP Nanofilm Inside a Four-Electrode Electrochemical Cell2.7 "Shake-Flask" Experiments to Quantify Biphasic H2O2 Generation; Appendixes; Sec22; References; 3 Self-Assembly of Nanoparticles into Gold Metal Liquid-like Droplets (MeLLDs); 3.1 Introduction; 3.2 Results and Discussion; 3.2.1 Optical Characterization of Gold MeLLDs; 3.2.2 Investigating the Conductivity of Gold MeLLDs; 3.2.3 Gold MeLLD Formation Mechanism; 3.2.4 To the Question of Wetting Properties; 3.2.5 Self-healing Nature and Mechanical Properties; 3.3 Conclusions; References.
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| Abstract
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This book is devoted to various aspects of self-assembly of gold nanoparticles at liquid-liquid interfaces and investigation of their properties. It covers primarily two large fields: (i) self-assembly of nanoparticles and optical properties of these assemblies; and (ii) the role of nanoparticles in redox electrocatalysis at liquid-liquid interfaces. The first part aroused from a long-lasting idea to manipulate adsorption of nanoparticles at liquid-liquid with an external electric field to form 'smart' mirrors and/or filters. Therefore, Chapters 3 to 5 are dedicated to explore fundamental aspects of charged nanoparticles self-assembly and to investigate optical properties (extinction and reflectance) in a through manner. Novel tetrathiafulvalene (TTF)-assisted method leads to self-assembly of nanoparticles into cm-scale nanofilms or, so-called, metal liquid-like droplets (MeLLDs) with remarkable optical properties. The second part (Chapters 6 to 8) clarifies the role of nanoparticles in interfacial electron transfer reactions. They demonstrate how nanoparticles are charged and discharged upon equilibration of Fermi levels with redox couples in solution and how it can be used to perform HER and ORR. Finally, chapter 9 gives a perspective outlook, including applications of suggested methods in fast, one-step preparation of colloidosomes, SERS substrates as well as pioneer studies on so-called Marangony-type shutters drive by the electric field.
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| Subject
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Gold.
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Liquid-liquid interfaces.
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Nanoparticles.
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Self-assembly (Chemistry)
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Catalysis.
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Electrochemistry magnetochemistry.
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Gold.
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Liquid-liquid interfaces.
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Nanoparticles.
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Nanotechnology.
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SCIENCE-- Chemistry-- Organic.
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Self-assembly (Chemistry)
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Testing of materials.
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Catalysis.
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| Dewey Classification
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547/.2
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| LC Classification
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QA475
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