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Book
Ein neues Konzept für die Anwendung von einwandigen Kohlenstoffnanoröhren für die pH-Sensorik
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ISBN: 1000022233 3866446411 Year: 2011 Publisher: KIT Scientific Publishing

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Abstract

Einwandige Kohlenstoffnanoröhren (SWCNTs) gelten aufgrund ihrer hohen Ladungsträgermobilität, des hohen Oberfläche-Volumen-Verhältnisses und der Tatsache, dass all ihre Atome mit der Umgebung wechselwirken, als hoch interessant für die Sensorik. Hier wird ein neues Konzept für die Messung des pH-Wertes, der als wichtigster Parameter der Flüssiganalytik gilt, auf Basis von SWCNTs vorgestellt und anhand der Charakterisierung der hergestellten Sensoren die Funktionsfähigkeit nachgewiesen.

Keywords

CNT-FET --- pH --- Kohlenstoff-Nanoröhren --- Sensor


Book
Electrochemical Capacitors
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Electrochemical capacitors are being increasingly introduced in energy storage devices, for example, in automobiles, renewable energies, and mobile terminals. This book includes five high-quality papers that can lead to technological developments in electrochemical capacitors. The first paper describes the effect of the milling degree of activated carbon particles used in the electrodes on the supercapacitive performance of an electric double-layer capacitor. The second, fourth, and fifth papers describe novel electrode materials that have the potential to enhance the performance of next-generation electrochemical capacitors. Nickel molybdate/reduced graphene oxide nanocomposite, copper-decorated carbon nanotubes, and nickel hydroxide/activated carbon composite are tested, and are shown to be promising candidates for next-generation electrochemical capacitors. The third paper reports the hybrid utilization of electrochemical capacitors with other types of energy devices (photovoltaics, fuel cells, and batteries) in a DC microgrid, which ensures wider applications of electrochemical capacitors in the near future. The knowledge and experience in this book are beneficial in manufacturing and utilizing electrochemical capacitors. Cutting-edge knowledge related to novel electrode nano-materials is also helpful to design next-generation electrochemical capacitors. This book delivers useful information to specialists involved in energy storage technologies.


Book
Byproducts, Waste Biomass and Products to form Green Diesel and Biocrude Oils
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book provides a collection of research and review articles useful for researchers, engineers, students and industry experts in the bioenergy field. The practical and valuable information can be utilized for developing and implementing renewable energy projects, selecting different waste feedstocks, technologies, and products. A detailed insight into advanced technologies such as hydrothermal liquefaction, torrefaction, and supercritical CO2 extraction for making sustainable biofuels and chemicals is provided. A case study on food waste-to-energy valorization processes in Latin America provides experts’ insights to promote a circular economy.


Book
Modeling and Experimental Characterization of Nanocomposite Materials
Author:
ISBN: 3039286331 3039286323 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue gathers research from different branches of science and engineering disciplines working on experiments and modelling of nanocomposites into one volume. The Guest Editor welcomes papers dedicated to experimental, computational, and theoretical aspects dealing with many important state-of-the-art technologies and methodologies regarding the synthesis, fabrication, characterization, properties, design, and applications, and both finite element analysis and molecular dynamic simulations, of nanocomposite materials and structures. Full papers covering novel topics, extending the frontiers of the science and technology of nanoreinforced composites are encouraged. Reviews covering topics of major interest will be also considered.


Book
Advanced Materials for Energy and Environmental Applications
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Advanced materials for energy and environmental applications (such as rapid heating, anti-fouling/anti-virus surface, chemical sensor, textile/stretchable sensor, fuel cell, and lithium-ion batteries) have been extensively investigated in the academic and industrial fields. The advent of cabon-based nano-materials (carbon nanotubes, graphene, and carbon black) and inonganic nano-materials (Ag wire/particles, Cu mesh, and transition metal dichalcogenide) has accelerated research interest in energy and environmental applications. This book is focused on the emerging concept and improvement of energy and environmental basic research, as well as in the characterization and analysis of novel energy and environmental base materials. The contents of the book are as below: - Theoretical and experimental studies on advanced conducting nanocomposites; - Electrical properties of nanocomposites under various conditions (dynamic mode, aspect ratio, alignment, and contents) and its applications; - Advanced material for energy applications; - Analysis and materials for environmental applications.


Book
Multi-Walled Carbon Nanotubes
Author:
ISBN: 3039212303 303921229X Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Since their discovery, multi-walled carbon nanotubes (MWCNTs) have received tremendous attention due to their unique electrical, optical, physical, chemical, and mechanical properties. Remarkable advances have been made in the synthesis, purification, structural characterization, functionalization, and application of MWCNTs. Their particular characteristics make them well suited for a plethora of applications in a number of fields, namely nanoelectronics, nanofluids, energy management, (electro)catalysis, materials science, construction of (bio)sensors based on different detection schemes, multifunctional nanoprobes for biomedical imaging, and sorbents for sample preparation or removal of contaminants from wastewater. They are also useful as anti-bacterial agents, drug delivery nanocarriers, etc. The current relevant application areas are countless. This Special Issue presents original research and review articles that address advances, trends, challenges, and future perspectives regarding synthetic routes, structural features, properties, behaviors, and industrial or scientific applications of MWCNTs in established and emerging areas.


Book
Synthesis and Applications of Nanomaterials for Photocatalysis and Electrocatalysis
Authors: ---
ISBN: 3039288326 3039288318 Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Heterogeneous catalysis, exploiting photo- and electrochemical reactions, has expanded rapidly in recent decades, having undergone various developments, especially from both energetic and environmental points of view. Photocatalysis plays a pivotal role in such applications as water splitting and air/water remediation. Electrocatalysis can be found in a large array of research fields, including the development of electroanalytical sensors, wastewater treatment, and energy conversion devices (e.g., batteries, fuel and solar cells, etc.). Therefore, the fine control of the synthetic procedures, together with extensive physicochemical characterisations of the tailor-made catalytic nanomaterials, are of fundamental importance to achieving the desired results. The present book will include recent enhancements in oxide/metal nanoparticles for photocatalytic and electrocatalytic applications, especially in the fields of pollutants abatement and energy conversion.


Book
Mechanics of Micro- and Nano-Size Materials and Structures
Authors: ---
ISBN: 3036557776 3036557784 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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For this reprint, we intend to cover theoretical as well as experimental works performed on small scale to predict the material properties and characteristics of any advanced and metamaterials. New studies on mechanics of small-scale structures such as MEMS/NEMS, carbon and non-carbon nanotubes (e.g., CNTs, Carbon nitride, and Boron nitride nanotubes), micro/nano-sensors, nanocomposites, macrocomposites reinforced by micro-/nano-fillers (e.g., graphene platelets), etc., are included in this reprint.


Book
Additive Manufacturing of Bio and Synthetic Polymers
Authors: --- ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Additive manufacturing technology offers the ability to produce personalized products with lower development costs, shorter lead times, less energy consumed during manufacturing and less material waste. It can be used to manufacture complex parts and enables manufacturers to reduce their inventory, make products on-demand, create smaller and localized manufacturing environments, and even reduce supply chains. Additive manufacturing (AM), also known as fabricating three-dimensional (3D) and four-dimensional (4D) components, refers to processes that allow for the direct fabrication of physical products from computer-aided design (CAD) models through the repetitious deposition of material layers. Compared with traditional manufacturing processes, AM allows the production of customized parts from bio- and synthetic polymers without the need for molds or machining typical for conventional formative and subtractive fabrication.In this Special Issue, we aimed to capture the cutting-edge state-of-the-art research pertaining to advancing the additive manufacturing of polymeric materials. The topic themes include advanced polymeric material development, processing parameter optimization, characterization techniques, structure–property relationships, process modelling, etc., specifically for AM.


Book
Carbon-Based Polymer Nanocomposites for High-Performance Applications
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Carbon-based nanomaterials such as carbon nanotubes, graphene and its derivatives, nanodiamond, fullerenes, and other nano-sized carbon allotropes have recently attracted a lot of attention among the scientific community due to their enormous potential for a wide number of applications arising from their large specific surface area, high electrical and thermal conductivity, and good mechanical properties. The combination of carbon nanomaterials with polymers leads to new nanocomposites with improved structural and functional properties due to synergistic effects. In particular, the properties of carbon-based polymer nanocomposites can be easily tuned by carefully controlling the carbon nanomaterial synthesis route and additionally the versatile synergistic interactions amongst the nanomaterials and polymers. This book provides selected examples of the most recent advances regarding carbon nanomaterial-reinforced polymeric composites. It includes the most representative types of polymeric matrices and covers aspects of new processing techniques, novel surface modifications of carbon nanomaterials and their applications in diverse fields, in particular in electronics and energy storage.

Keywords

multi walled carbon nanotubes --- polyacrylonitrile --- nascent fiber --- thermal properties --- morphological structure --- nanocomposites --- graphene --- melt processing --- mechanical properties --- electrical conductivity --- electrostatic spraying --- multi-walled carbon nanotubes --- waterborne polyurethane coating --- dispersity --- surface hardness --- wear rate --- friction coefficient --- in-mold decoration injection molding --- microcellular injection molding --- surface quality --- warpage --- multiwalled carbon nanotube --- hyaluronic acid --- microfibers --- wet-spinning --- microstructures --- tensile properties --- Ag --- CNT --- flexible supercapacitor electrode --- polymer conductive film --- cellulose acetate membrane --- PANI --- graphene oxide --- hexamethylene diisocyanate --- nanocomposite --- thermal stability --- polydiphenylamine-2-carboxylic acid --- single-walled carbon nanotubes --- conjugated polymers --- in situ oxidative polymerization --- hybrid nanocomposites --- polypropylene --- carbon nanotube --- titanium dioxide --- reduced graphene oxide --- polyurethane foam --- flexible electronics --- pressure sensing --- polyethyleneimine --- thermoelectric properties --- carrier type --- Paal-Knorr reaction --- polyketone --- carbon nanotubes --- Diels-Alder --- click-chemistry --- hydrogen bonding --- self-healing --- re-workability --- recycling --- Joule heating --- flexible electrode --- cross-linked acrylamide/alginate --- tensile strength --- impedance spectroscopy --- polymer electrolyte --- Li-ion micro-batteries --- flexible anode --- pre-lithiation --- carbon-based polymer nanocomposite --- energy storage --- fuel cell --- electrochemical devices --- n/a

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