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Author: Chu Han Publisher: ISBN: Category : Languages : en Pages : 159
Book Description
This dissertation focuses on studying fundamental properties of nanomaterials with electrochemical methods and the development of new electrochemical methods to study single nanoparticles and vesicles. Chapter 1 introduces nanomaterials including nanoparticles and nanoparticle films and addresses the importance of single-nanoparticle study with electrochemical methods. This chapter also discusses the electrochemical methods that are employed in the following chapters. Chapter 2 discusses the electrochemical characterization of uniform ultrathin nanoparticle films that can be fabricated by layer-by-layer assembly with well-controlled film thickness and composition. The electrocatalytic activity towards oxygen reduction reaction of the film are studied with voltammetric techniques. Chapter 3 discusses the characterization of single Janus Au-SiO2 nanoparticle with single-nanoparticle collision method. The apparent electroactive area of single Janus nanoparticles can be obtained from the transient current signals from hydrazine oxidation and proton reduction. The study in chapter 4 represents the first evidence that transient bipolar electrochemistry can happen on small free moving metal nanoparticles. This innovative study utilizes the highly focusing power of a nanopore for the applied voltage so that the potential drop across a 40 nm particle is sufficient to couple two electrochemical reactions. The use of nanopore and resistive-pulse sensing may be extended to future nanoparticle studies in ultrafast electrochemistry, nanoparticle catalyst screening, and gas nucleation on nanoparticle. In chapter 5 we design a high throughput electrochemical analyzer for counting and sizing single vesicles and propose its potential in integration with ultramicroelectrodes to obtain more complicated information of singe vesicles.
Author: Chu Han Publisher: ISBN: Category : Languages : en Pages : 159
Book Description
This dissertation focuses on studying fundamental properties of nanomaterials with electrochemical methods and the development of new electrochemical methods to study single nanoparticles and vesicles. Chapter 1 introduces nanomaterials including nanoparticles and nanoparticle films and addresses the importance of single-nanoparticle study with electrochemical methods. This chapter also discusses the electrochemical methods that are employed in the following chapters. Chapter 2 discusses the electrochemical characterization of uniform ultrathin nanoparticle films that can be fabricated by layer-by-layer assembly with well-controlled film thickness and composition. The electrocatalytic activity towards oxygen reduction reaction of the film are studied with voltammetric techniques. Chapter 3 discusses the characterization of single Janus Au-SiO2 nanoparticle with single-nanoparticle collision method. The apparent electroactive area of single Janus nanoparticles can be obtained from the transient current signals from hydrazine oxidation and proton reduction. The study in chapter 4 represents the first evidence that transient bipolar electrochemistry can happen on small free moving metal nanoparticles. This innovative study utilizes the highly focusing power of a nanopore for the applied voltage so that the potential drop across a 40 nm particle is sufficient to couple two electrochemical reactions. The use of nanopore and resistive-pulse sensing may be extended to future nanoparticle studies in ultrafast electrochemistry, nanoparticle catalyst screening, and gas nucleation on nanoparticle. In chapter 5 we design a high throughput electrochemical analyzer for counting and sizing single vesicles and propose its potential in integration with ultramicroelectrodes to obtain more complicated information of singe vesicles.
Author: Onoyivwe Monday Ama Publisher: Springer Nature ISBN: 3030855554 Category : Technology & Engineering Languages : en Pages : 242
Book Description
This book focuses on the electrochemical and nanostructural properties of new photoanode/electrolyte combinations used in the development of novel surface-modified nanomaterials for environmental applications. As water treatment is rapidly becoming a global challenge due to the increasing complexity and number of the various pollutants present, the book explores fundamental issues relating to environmental applications of nanomaterials. It addresses relevant topics ranging from electrochemical synthesis and characterization, to applications of photoanodes in corrosion prevention and biosensors for wastewater treatment. Featuring up-to-date experimental results on nanomaterials for detection of pharmaceuticals and heavy metals in wastewater, this contributed volume is useful to electrochemical researchers, materials scientists, and chemical and civil engineers interested in advanced photoelectrochemical research for environmental applications.
Author: Mahmood Aliofkhazraei Publisher: BoD – Books on Demand ISBN: 9535115863 Category : Science Languages : en Pages : 354
Book Description
The basics and principles of new electrochemical methods and also their usage for fabrication and analysis of different nanostructures were discussed in this book. These methods consist of electrochemical methods in nanoscale (e.g. electrochemical atomic force microscopy and electrochemical scanning tunneling microscopy) and also electrochemical methods for fabrication of nanomaterials.
Author: Mahmood Aliofkhazraei Publisher: Springer ISBN: 9783319152653 Category : Science Languages : en Pages : 0
Book Description
This edited book is devoted to different electrochemical aspects of nano materials. This comprehensive reference text is basically divided in 3 parts: electrochemical synthesis routes for nanosized materials, electrochemical properties of nano materials and electrochemical characterization methods for nanostructures. The Handbook is a reference work to chemists and materials scientists interested in the nano aspects of electrochemistry. The chapters are written by a number of international experts in the field and the content will assist members of both electrochemical and materials communities to keep abreast of developments in the field.
Author: Ravi Varma Publisher: Wiley-Interscience ISBN: 9780471824992 Category : Science Languages : en Pages : 800
Book Description
Written by leading authorities in their respective fields, it presents review articles on in situ or quasi-in situ techniques for the characterization of electrodes and electrochemical processes--appropriate for surface or bulk phase analysis. Divided into two sections covering in situ monitoring and characterization of structure and compositions of electrodes, electrolytes and products during electrolysis in Part A, and electrochemical techniques and theoretical-modeling tools in Part B.
Author: Damien W M Arrigan Publisher: Royal Society of Chemistry ISBN: 1782622527 Category : Science Languages : en Pages : 413
Book Description
Electrochemical methods of chemical analysis have been widely used for many years, most especially the trusty pH electrode and conductivity meter, but also in the mass-manufactured glucose test strips which place electrochemical measurements into the hands of non-scientists. The purpose of this volume is to address advances that will enable new measurement strategies in the future. Surveying research and development advances based on new methods, materials and devices that achieve improved electroanalytical performances, this collection encompasses chip-based systems, through nanodomain approaches and soft interfaces. This book is a vital resource for graduate students and professional analytical chemists.
Author: Stephen J. Percival Publisher: ISBN: Category : Languages : en Pages : 244
Book Description
This dissertation mainly discusses the fundamental properties and electrocatalytic activity of single, isolated nanomaterial structures, such as nanowires, nanoparticles and graphene. It also discusses the development of new nanoscale electrochemical techniques to investigate various aspects of heterogeneous catalysis and single cell analysis. There is a brief introduction about the nature of electrochemistry and electrochemical catalysts as well as some various nanomaterials and voltammetric techniques involved in this work. The fabrication and of new ultralong metal nanowires made from platinum or gold through a laser assisted mechanical pulling procedure is discussed in chapter 2. Single platinum nanowires of this type are then used to study the Oxygen Reduction Reaction (ORR) on nanowires with various diameters in Chapter 3. The catalytic activities of several different nanoparticles are studied in Chapters 4 and 5 using the technique of Fast Scan Cyclic Voltammetry (FSCV), where detailed chemical information can be obtained from nanoparticle collision events by recording single nanoparticle Cyclic Voltammograms (CVs) for the oxidation of hydrazine. Combined with numerical simulations, the single nanoparticle CVs allow for the determination of the electron transfer kinetics and the Gibbs free energy of activation for hydrazine oxidation. These combined methods can be a powerful tool in many aspects of fundamental catalytic research. Chapter 6 details the phenomena of fast formation and growth of platinum oxide at low anodic potentials using platinum nanoelectrodes as model nanoparticle electrocatalysts. Chapter 7 discusses the technique of Fluorescence Enabled Electrochemical Microscopy (FEEM) and its application towards heterogeneous electrocatalyst screening, where a fluorogenic reaction is monitored at one side of an array of closed bipolar electrodes, which is coupled to a reaction occurring at the same region on the other side of the array. Chapter 8 is a study of the electrocatalytic activity of single graphene sheets with different numbers of layers for the ORR. The testing of recessed ring disk electrodes for the purpose of molecular scavenging during single cell exocytosis experiments is presented in Chapter 9 and chapter 10 describes the design and fabrication of two different Transmission Electron Microscopy (TEM) chip based electrodes for the goal of in-situ TEM experiments.
Author: Patrik Schmuki Publisher: Springer Science & Business Media ISBN: 0387735828 Category : Science Languages : en Pages : 477
Book Description
For centuries, electrochemistry has played a key role in technologically important areas such as electroplating or corrosion. In recent decades, electrochemical methods are receiving increasing attention in important strongly growing fields of science and technology such as nanosciences (nanoelectrochemistry) and life-sciences (organic and biological electrochemistry). Characterization, modification and understanding of various electrochemical interfaces or electrochemical processes at the nanoscale, has led to a huge increase of the scientific interest in electrochemical mechanisms as well as of application of electrochemical methods in novel technologies. This book presents exciting emerging scientific and technological aspects of the introduction of the nanodimension in electrochemical approaches are presented in 12 chapters/subchapters.
Author: Ralph E. White Publisher: Springer Science & Business Media ISBN: 038746106X Category : Science Languages : en Pages : 367
Book Description
This volume in the acclaimed series Modern Aspects of Electrochemistry starts with a dedication to the late Professor Brian Conway who for 50 years helped to guide this series to its current prominence. The remainder of the volume is then devoted to the following topics: PEM fuel cells; the use of graphs in electrochemical reaction newtworks; nanomaterials in Lithium-ion batteries; direct methanolf fuel cells (two chapters); fuel cell catalyst layers. The book is for electrochemists, electrochemical engineers, fuel cell workers and energy generation workers.
Author: Sabu Thomas Publisher: Elsevier ISBN: 0323461468 Category : Technology & Engineering Languages : en Pages : 446
Book Description
Nanomaterials Characterization Techniques, Volume Two, part of an ongoing series, offers a detailed analysis of the different types of spectroscopic methods currently being used in nanocharacterization. These include, for example, the Raman spectroscopic method for the characterization of carbon nanotubes (CNTs). This book outlines the different kinds of spectroscopic tools being used for the characterization of nanomaterials and discusses under what conditions each should be used. The book is intended to cover all the major spectroscopic techniques for nanocharacterization, making it an important resource for both the academic community at the research level and the industrial community involved in nanomanufacturing. - Explores how spectroscopy and X-ray-based nanocharacterization techniques are applied in modern industry - Analyzes all the major spectroscopy and X-ray-based nanocharacterization techniques, allowing the reader to choose the best for their situation - Presents a method-orientated approach that explains how to successfully use each technique
Author: Chu Han
Author: Chu Han
Author: Onoyivwe Monday Ama
Author: Mahmood Aliofkhazraei
Author: Mahmood Aliofkhazraei
Author: Ravi Varma
Author: Damien W M Arrigan
Author: Stephen J. Percival
Author: Patrik Schmuki
Author: Ralph E. White
Author: Sabu Thomas