Download or read book Langmuir Films of Graphene based Materials written by Luzhu Xu and published by . This book was released on 2017 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene-based materials have attracted considerable interest due to their potential use in a broad range of applications including membrane separations, electronic devices and biomaterials. Their performance in many of these applications relies on the ability to precisely control the layer number and density of films over large areas. Chemical vapor deposition (CVD) is one of the most promising methods to produce single layer graphene. However, the high cost, limited choice of substrates and error-prone transfer processes limit its application. On the other hand, laboratory-scale film processing approaches like spin/spray-coating, filtration and drop-casting are incapable of producing films with nanometer-scale control of film thickness and uniformity and/or over the large length scales required for many applications. Recently, the Langmuir-Blodgett (LB) deposition technique has been applied to graphene and graphene oxide with some success. In this method, the material is dispersed at the air-water interface, the floating material, held up by surface tension, is densified by the compression of two floating barriers and the resulting film is transferred onto substrates by dip coating. While good control over layer number and film density has been achieved, the technique is currently limited to small area films and suffers from the challenge that only ~1% of the material is retained at the interface during transfer while the rest is lost in the sub-phase. In this work, we developed a directed assembly process for producing GO monolayers at the air-water interface which assemble into densely tiled films without the requirement to use adjustable barriers. We demonstrate that the resulting directional film growth is amenable to roll-to-roll fabrication. By choosing a suitable spreading solvent, we obtained high-yield transfer to the air-water interface measuring Langmuir surface areas as high as 800 m2/g. Furthermore, we used both in situ Brewster angle microscopy and a custom-made Langmuir-Adam balance to study the mechanism of film formation. We also successfully extended our process to monolayer films of other 2D nanomaterials such as MoS2. As a first example of the utility of these films, we deposit dense GO monolayers onto silver nanowire transparent electrodes and demonstrate their ability to protect the nanowires from degrading under high currents.
Download or read book Graphene Based Materials written by Subbiah Alwarappan and published by CRC Press. This book was released on 2013-10-14 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuously studied since its discovery, graphene offers truly unique opportunities, because unlike most semiconductor systems, its 2D electronic states are not buried deep under the surface and it can be easily accessed directly by tunneling or by other local probes. An in-depth analysis of recent advances in graphene research, Graphene-Based Materials: Science and Technology discusses synthesis, properties, and their important applications in several fields. It examines methods for synthesis of graphene as well as surface characterization, properties, and application in biosensors and energy storage. The book begins with a brief review of the history of graphene and a discussion of its important properties. It then presents the different methods of graphene synthesis available and a brief overview of a few important characterization techniques that distinguishes graphene from its allotropes. The authors detail the applications of graphene in high-speed electronics, field-effect transistors, biosensors, gas-sensors, ultra-capacitors, photonics, optoelectronics, and drug delivery. They conclude with coverage of the toxicity properties of graphene and the future of graphene research. Written by experts with more than a decade of experience in nanotechnology research, the book incorporates the latest literature and findings in the field. Its emphasis on applications, especially biomedical/electrochemical and energy storage applications, sets it apart from other books on this topic. It provides those working in graphene and related materials a resource that helps initiate new thinking.
Download or read book Langmuir blodgett Films of Graphene Derivatives written by Søren Vermehren Pedersen and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphene based Materials in Health and Environment written by Gil Gonçalves and published by Springer. This book was released on 2016-12-10 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the potential use of graphene-based materials in two important societal areas: medicine and the environment. It discusses how new graphene-based materials can be creatively used for biological purposes, for example as delivery vehicles for diagnostics or therapeutics, ultrasensitive sensors, smart responsive substrates for artificial-tissue design and biomarkers. Moreover, it presents new insights into their use as sorbent or photocatalytic materials for environmental decontamination in water and gas-phase desalination membranes and as sensors for contaminant monitoring, giving relevance to the current discussions on the possible toxicological effects of graphene-based materials.
Download or read book Carbon Nanomaterials Based on Graphene Nanosheets written by Ling Bing Kong and published by CRC Press. This book was released on 2017-03-27 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of graphene, it has become one of the most widely and extensively studied materials. This book aims to summarize the progress in synthesis, processing, characterization and applications of a special group of nanocarbon materials derived from graphene or graphene related derivatives by using various strategies in different forms. More specifically, three forms of macrosized materials are presented, i.e., one-dimension or 1D (fibers, wires, yarns, streads, etc.), two-dimension or 2D (films, membranes, papers, sheets, etc.) and three-dimension or 3D (bulk, hydrogels, aerogels, foams, sponges, etc.). Seven chapters are included with the first chapter serving to introduce the concept, definition, and nomenclature of graphene, graphene oxide and their derivatives. The main topics are covered in Chapters 2‒7. Although they have coherent connections, each chapter of them is designed such that they can be studied independently. The target readers of this book include undergraduate students, postgraduate students, researchers, designers, engineers, professors, and program/project managers from the fields of materials science and engineering, applied physics, chemical engineering, biomaterials, materials manufacturing and design, institutes, and research founding agencies.
Download or read book Graphene Based Nanomaterials written by Yugal Kishore Mohanta and published by CRC Press. This book was released on 2024-02-08 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a comprehensive overview of the historical, current, and prospective application realms of nanobiotechnological research pertaining to graphene, a carbon-based nanomaterial, and its diverse forms in the fields of food and agriculture, as well as health sciences and technology. Young nanotechnologists and businesses will have access to nanobioanalytical methods. Given the present circumstances, it is crucial to underscore the potential ramifications that diverse forms of graphene nanomaterials could have on the food sector, agricultural methodologies, and healthcare. This book presents an analysis of the potential advantages of graphene-based nanomaterials over traditional materials in the food, agriculture, and health care sectors. This book employs case studies, academic and theoretical literature, technology transfer, innovation, economics, and policy management to underscore the intricate issues associated with graphene nanomaterials. The pioneering text Graphene-Based Nanomaterials: Application in Food, Agriculture, and Healthcare has the potential to serve as a valuable resource for interdisciplinary researchers, academics, practitioners, policymakers, and professionals operating within the fields of science, technology, engineering, innovation, management, and economics. Features · Discusses the different aspects of graphene as a two-dimensional material and its underlying unique physicochemical properties, synthesis methods, and protocols. · Considers the implications of graphene in the food sciences and its different spoilage detection mechanisms have been encompassed in the book. · Explores graphene nanomaterials' medical and biomedical uses. With examples, the unique and tailor-made material's uses and prospects in health sciences, pharmaceutics, and biomedical research are highlighted. · Elaborates on graphene's applications in agriculture and briefs the potential of biocompatible planar conductive nanoscale materials to boost agri-product production, crop development, and crop-infection surveillance.
Download or read book Two Dimensional Nanostructures written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2012-05-02 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the 2010 Nobel Prize in Physics was awarded to Andre Geim and Konstantin Novoselov "for groundbreaking experiments regarding the two-dimensional material graphene," even more research and development efforts have been focused on two-dimensional nanostructures. Illustrating the importance of this area in future applications, Two-Dimensional Nanostructures covers the fabrication methods and properties of these materials. The authors begin with discussions on the properties, size effect, applications, classification groups, and growth of nanostructures. They then describe various characterization and fabrication methods, such as spectrometry, low-energy electron diffraction, physical and chemical vapor deposition, and molecular beam epitaxy. The remainder of the text focuses on mechanical, chemical, and physical properties and fabrication methods, including a new mechanical method for fabricating graphene layers and a model for relating the features and structures of nanostructured thin films. With companies already demonstrating the capabilities of graphene in a flexible touch-screen and a 150 GHz transistor, nanostructures are on their way to replacing silicon as the materials of choice in electronics and other areas. This book aids you in understanding the current chemical, mechanical, and physical processes for producing these "miracle materials."
Download or read book Two dimensional Materials written by Pramoda Kumar Nayak and published by BoD – Books on Demand. This book was released on 2016-08-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are only a few discoveries and new technologies in materials science that have the potential to dramatically alter and revolutionize our material world. Discovery of two-dimensional (2D) materials, the thinnest form of materials to ever occur in nature, is one of them. After isolation of graphene from graphite in 2004, a whole other class of atomically thin materials, dominated by surface effects and showing completely unexpected and extraordinary properties, has been created. This book provides a comprehensive view and state-of-the-art knowledge about 2D materials such as graphene, hexagonal boron nitride (h-BN), transition metal dichalcogenides (TMD) and so on. It consists of 11 chapters contributed by a team of experts in this exciting field and provides latest synthesis techniques of 2D materials, characterization and their potential applications in energy conservation, electronics, optoelectronics and biotechnology.
Download or read book Innovations in Graphene Based Polymer Composites written by Sanjay Mavinkere Rangappa and published by Woodhead Publishing. This book was released on 2022-06-15 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovations in Graphene-Based Polymer Composites reviews recent developments in this important field of research. The book's chapters focus on processing methods, functionalization, mechanical, electrical and thermal properties, applications and life cycle assessment. Leading researchers from industry, academia and government research institutions from across the globe have contributed to the book, making it a valuable reference resource for materials scientists, academic researchers and industrial engineers working on recent developments in the area of graphene-based materials, graphene-based polymer blends and composites. Readers will gain insights into what has been explored to-date, along with associated benefits and challenges for the future. Presents a strong emphasis on synthesis methods, functionalization, processing and properties Includes chapters on characterization, electrical conductivity and modeling and simulation Provides recent advances in applications, including drawbacks and future scope
Download or read book Graphene Science Handbook Six Volume Set written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2016-04-26 with total page 3379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene is the strongest material ever studied and can be an efficient substitute for silicon. This six-volume handbook focuses on fabrication methods, nanostructure and atomic arrangement, electrical and optical properties, mechanical and chemical properties, size-dependent properties, and applications and industrialization. There is no other major reference work of this scope on the topic of graphene, which is one of the most researched materials of the twenty-first century. The set includes contributions from top researchers in the field and a foreword written by two Nobel laureates in physics. Volumes in the set: K20503 Graphene Science Handbook: Mechanical and Chemical Properties (ISBN: 9781466591233) K20505 Graphene Science Handbook: Fabrication Methods (ISBN: 9781466591271) K20507 Graphene Science Handbook: Electrical and Optical Properties (ISBN: 9781466591318) K20508 Graphene Science Handbook: Applications and Industrialization (ISBN: 9781466591332) K20509 Graphene Science Handbook: Size-Dependent Properties (ISBN: 9781466591356) K20510 Graphene Science Handbook: Nanostructure and Atomic Arrangement (ISBN: 9781466591370)
Download or read book Mechanical Properties of Water assembled Graphene Oxide Langmuir Monolayers written by and published by . This book was released on 2015 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid-phase transfer of graphene oxide (GO) and reduced graphene oxide (RGO) monolayers is investigated from the perspective of the mechanical properties of these films. Monolayers are assembled in a Langmuir-Blodgett trough, and oscillatory barrier measurements are used to characterize the resulting compressive and shear moduli as a function of surface pressure. GO monolayers are shown to develop a significant shear modulus (10-25 mN/m) at relevant surface pressures while RGO monolayers do not. The existence of a shear modulus indicates that GO is acting as a two-dimensional solid driven by strong interaction between the individual GO sheets. The absence of such behavior in RGO is attributed to the decrease in oxygen moieties on the sheet basal plane, permitting RGO sheets to slide across one another with minimum energy dissipation. Knowledge of this two-dimensional solid behavior is exploited to successfully transfer large-area, continuous GO films to hydrophobic Au substrates. The key to successful transfer is the use of shallow-angle dipping designed to minimize tensile stress present during the insertion or extraction of the substrate. A shallow dip angle on hydrophobic Au does not impart a beneficial effect for RGO monolayers, as these monolayers do not behave as two-dimensional solids and do not remain coherent during the transfer process. As a result, we hypothesize that this observed correlation between monolayer mechanical properties and continuous film transfer success is more universally applicable across substrate hydrophobicities and could be exploited to control the transfer of films composed of two-dimensional materials.
Download or read book Materials Nanoarchitectonics written by Katsuhiko Ariga and published by Elsevier. This book was released on 2023-12-15 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Nanoarchitectonics: From Integrated Molecular Systems to Advanced Devices provides the latest information on the design and molecular manipulation of self-organized hierarchically structured systems using tailor-made nanoscale materials as structural and functional units. The book is organized into three main sections that focus on molecular design of building blocks and hybrid materials, formation of nanostructures, and applications and devices. Bringing together emerging materials, synthetic aspects, nanostructure strategies, and applications, the book aims to support further progress, by offering different perspectives and a strong interdisciplinary approach to this rapidly growing area of innovation. This is an extremely valuable resource for researchers, advanced students, and scientists in industry, with an interest in nanoarchitectonics, nanostructures, and nanomaterials, or across the areas of nanotechnology, chemistry, surface science, polymer science, electrical engineering, physics, chemical engineering, and materials science. Offers a nanoarchitectonic perspective on emerging fields, such as metal-organic frameworks, porous polymer materials, or biomimetic nanostructures Discusses different approaches to utilizing "soft chemistry" as a source for hierarchically organized materials Offers an interdisciplinary approach to the design and construction of integrated chemical nano systems Discusses novel approaches towards the creation of complex multiscale architectures
Download or read book Graphene written by Hongwei Zhu and published by Academic Press. This book was released on 2017-09-15 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphene: Fabrication, Characterizations, Properties and Applications presents a comprehensive review of the current status of graphene, especially focused on synthesis, fundamental properties and future applications, aiming to giving a comprehensive reference for scientists, researchers and graduate students from various sectors. Graphene, a single atomic layer of carbon hexagons, has stimulated a lot of research interest owing to its unique structure and fascinating properties. The book is devoted to understanding graphene fundamentally yet comprehensively through a wide range of issues in the areas of materials science, chemistry, physics, electronics and biology. The book is an important resource of comprehensive knowledge pertinent to graphene and to related expanding areas. This valuable book will attract scientists, researchers and graduate students in physics and chemistry because it aims at providing all common knowledge of these communities including essential aspects of material synthesis and characterization, fundamental physical properties and detailed chapters focused on the most promising applications. Presents a comprehensive and up-to-date review of current research of graphene, especially focused on synthesis, fundamental properties and future applications Includes not only fundamental knowledge of graphene materials, but also an overview of special properties for different potential applications of graphene in the fields of solar cells, photodetectors, energy storage, composites, environmental materials and bio-materials Emphasizes graphene-based applications that are quickly emerging as potential building blocks for nanotechnological commercial applications
Download or read book Graphene Science Handbook written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2016-04-27 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores Chemical-Based, Non-Chemical Based, and Advanced Fabrication MethodsThe Graphene Science Handbook is a six-volume set that describes graphene's special structural, electrical, and chemical properties. The book considers how these properties can be used in different applications (including the development of batteries, fuel cells, photovolt
Download or read book Graphene and Other 2D Layered Nanomaterial Based Films written by Federico Cesano and published by MDPI. This book was released on 2019-12-12 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to highlighting some relevant advances in the field of thin films and coatings based on two-dimensional crystals and layered nanomaterials. Due to their layered structure, graphene and a variety of new 2D inorganic nanosystems, called “graphene analogues”, have all attracted tremendous interest due to their unprecedented properties/superior performance, and may find applications in many fields from electronics to biotechnology. These two-dimensional systems are ultrathin and, hence, tend to be flexible, also presenting distinctive and nearly intrinsic characteristics, including electronic, magnetic, optical, thermal conductivity, and superconducting properties. Furthermore, the combination of different structures and synergetic effects may open new and unprecedented perspectives, making these ideal advanced materials for multifunctional assembled systems. As far as the field of coatings is concerned, new layered nanostructures may offer unique and multifunctional properties, including gas barrier, lubricant, conductive, magnetic, photoactive, self-cleaning, and/or antimicrobial surfaces. This book contains new findings on the synthesis and perspectives of multifunctional films that are at the forefront of the science and coating technologies.
Download or read book Graphene Based Polymer Nanocomposites written by Andriy Nadtochiy and published by Springer Nature. This book was released on with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interfacial Science An Introduction written by Geoffrey Barnes and published by Oxford University Press, USA. This book was released on 2011-02-10 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interfacial Science: An Introduction is an accessible text introducing readers to the chemistry of interfaces, a subject of increasing relevance and popularity due to the emergence of nanoscience.
