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ZnO and TiO2 Based Nanostructures

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ISBN: 9783038970132 9783038970149 Year: Pages: 380 DOI: 10.3390/books978-3-03897-014-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Technology --- Chemistry (General)
Added to DOAB on : 2018-10-15 09:30:30
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Nowadays, transition metal-oxides can be considered the most investigated materials especially in their nanostructured forms thanks to their intrinsic smart properties and to the positive effects induced by scaling their dimension down to the nanoscale. Among them, ZnO and TiO2 have attracted particular interest mainly because of their multi-functionality applicable in an enormous range of research fields. The present Special Issue – composed by twenty-seven papers, both reviews and research articles - covers the most recent advances in ZnO and TiO2 nanostructures, concerning not only their synthesis and characterization, but also reports of the manner(s) in which their functional and smart properties can be applied in working devices. Applications of such nanostructures can range widely, from biomedical and drug delivery devices to piezoelectric and chemical sensors, and energy harvesting, conversion, and storage devices.

Keywords

ZnO --- TiO2 --- nanostructures --- smart materials

Nanostructured Solar Cells

Authors: --- ---
ISBN: 9783038425328 9783038425335 Year: Pages: VIII, 178 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2017-10-25 13:23:42
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This book covers major important aspects of nanostructured solar cells of varying types. From fundamental physicochemical investigations to technological advances, and from single junction solar cells (silicon solar cell, dye sensitized solar cell, quantum dots sensitized solar cell, and small molecule organic solar cell) to tandem multi-junction solar cells, all aspects are included and discussed to advance the use of nanotechnology to improve the performance of solar cells with reduced fabrication costs. Most recent studies of nanostructured solar cells have been integrated in this book, allowing readers to quickly follow recent developments in this area.

Manufacturing, Characterisation and Prop erties of Advanced Nanocomposites

Authors: --- --- ---
ISBN: 9783038971887 9783038971894 Year: Pages: 152 DOI: 10.3390/books978-3-03897-189-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Social Sciences --- Chemistry (General)
Added to DOAB on : 2018-09-25 11:32:16
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ca. 200 words; this text will present the book in all promotional forms (e.g. flyers). Please describe the book in straightforward and consumer-friendly terms.[In recent years, advanced nanocomposites have attracted a great deal of attention from materials engineers and industrialists due to numerous advantages, including the use of a small amount of nanofillers to significantly enhance the material properties of resulting nanocomposites, widespread applications in a range of fields, such as automobiles, aerospace and aerocrafts, building structures, biomedical devices, etc., as well as easy processibility based on current manufacturing technologies, such as melt compounding, solution casting, in situ polymerisation and electrospinning. Advanced nanocomposites reinforced with carbon nanotubes (CNTs), graphene oxides (GOs), nanoclays, nanocellulose, and nanofibres demonstrate excellent multifunctional properties, consisting of better mechanical, thermal, electrical, and barrier properties. The key issue is still the encountered challenge of homogeneous filler dispersion in morphological structures for tailored advanced nanocomposites. Hence, processing-structure-property nanocomposite relationship is crucial for their future development as innovative hybrid material systems.This Special Issue will address above-mentioned points in relation to manufacturing, characterisation, and properties of advanced nanocomposites to offer an insight into this new composite family with the incorporation of nanofillers, nanoparticles, and nanomaterials in order to eventually achieve the nanotechnological "bottom-up" scheme.

On the diverse bonding situations in nanostructures : an ab initio computational study

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ISBN: 9783866444508 Year: Pages: VIII, 131 p. DOI: 10.5445/KSP/1000013975 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemistry (General)
Added to DOAB on : 2019-07-30 20:01:58
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This computational study investigates diverse bonding situations in nanostructures (carbon nanotubes, fullerenes, metal compounds) spanning a broad range of energies. Weak, dispersive interactions and covalent metal-ligand and metal-metal bonding are examined. The results of efficient density functional calculations are compared to those of correlated wavefunction calculations on model systems. This rigorous validation is crucial in evaluating the balance between computational cost and accuracy.

Nanomaterials in Liquid Crystals

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ISBN: 9783038971153 9783038971160 Year: Pages: 160 DOI: 10.3390/books978-3-03897-116-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Chemistry (General)
Added to DOAB on : 2018-09-25 11:14:33
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The dispersion of nanomaterials in liquid crystals, both of the thermotropic and the lyotropic kind, has attracted much interest over recent years. This is in part related to the success of liquid crystals in several applications, in particular flat screen displays, besides others. The dispersion of nanoparticles allows the fine-tuning of liquid crystalline properties and the addition of functionalities associated with the properties of the nanoparticles. These include the addition of ferroelectricity, magnetic properties, optic and plasmonic properties, for example through quantum dots and gold nanoparticles, but also directed conductivity, by exploiting the respective conductivity anisotropy of nanotubes. In addition, such behaviors can be achieved through transfer and templating of the self-organization of the liquid crystalline order onto dispersed anisotropic nanoparticles, allowing the formation of ordered nanostructures. Furthermore, the formation of partially ordered fluids can be induced by dispersing shape anisotropic nanoparticles in an isotropic solvent. Such lyotropic systems have recently experienced a revived interest. This genuinely multidisciplinary field of research has led to a wealth of novel systems in soft condensed matter and promises new applications in the areas of displays, optical elements, meta-materials, sensors, drug delivery, and many more. Various examples are presented in this publication.

Advanced Synchrotron Radiation Techniques for Nanostructured Materials

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ISBN: 9783039216802 9783039216819 Year: Pages: 138 DOI: 10.3390/books978-3-03921-681-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Mathematics --- Science (General)
Added to DOAB on : 2019-12-09 11:49:16
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Nanostructured materials exploit physical phenomena and mechanisms that cannot be derived by simply scaling down the associated bulk structures and phenomena; furthermore, new quantum effects come into play in nanosystems. The exploitation of these emerging nanoscale interactions prompts the innovative design of nanomaterials. Understanding the behavior of materials on all length scales—from the nanostructure up to the macroscopic response—is a critical challenge for materials science. Modern analytical technologies based on synchrotron radiation (SR) allow for the non-destructive investigation of the chemical, electronic, and magnetic structure of materials in any environment. SR facilities have developed revolutionary new ideas and experimental setups for characterizing nanomaterials, involving spectroscopy, diffraction, scatterings, microscopy, tomography, and all kinds of highly sophisticated combinations of such investigation techniques. This book is a collection of contributions addressing several aspects of synchrotron radiation as applied to the investigation of chemical, electronic, and magnetic structure of nanostructured materials. The results reported here provide not only an interesting and multidisciplinary overview of the chemicophysical investigations of nanostructured materials carried out by state-of-the-art SR-induced techniques, but also an exciting glance into the future perspectives of nanomaterial characterization methods.

Self-Assembled Bio-Nanomaterials: Synthesis, Characterization, and Applications

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ISBN: 9783039285365 9783039285372 Year: Pages: 134 DOI: 10.3390/books978-3-03928-537-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Materials
Added to DOAB on : 2020-04-07 23:07:09
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Biomolecular self-assembly provides a green, facile, and highly effective method to synthesize various functional nanomaterials that have exhibited considerable potential in the fields of nanotechnology, materials science, biomedicine, tissue engineering, food science, energy storage, and environmental science. In this collection of articles, we presented recent advance in the synthesis, characterization, and applications of self-assembled bio-nanomaterials. In a comprehensive review article, the controlled self-assembly of biomolecules including DNA, protein, peptide, enzymes, virus, and biopolymers via internal interactions and external simulations is introduced and discussed in detail. In other research articles, the self-assembly of DNA, protein, peptide, bio-drugs, liquid crystal polycarbonates, and diblock copolymers to various biomimetic/bioinspired nanomaterials and their potential applications in nanopatterning, sensors/biosensors, drug delivery, anti-parasite, and water purification are demonstrated.

Nanogenerators in Korea

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ISBN: 9783038976226 Year: Pages: 160 DOI: 10.3390/books978-3-03897-623-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-03-08 11:42:05
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Fossil fuels leaded the 21st century industrial revolution but caused some critical problems such as exhaustion of resources and global warming. Also, current power plants require too much high cost and long time for establishment and facilities to provide electricity. Thus, developing new power production systems with environmental friendliness and low-cost is critical global needs. There are some emerging energy harvesting technologies such as thermoelectric, piezoelectric, and triboelectric nanogenerators, which have great advantages on eco-friendly low-cost materials, simple fabrication, and various operating sources. Since the introduction of various energy harvesting technologies, many novel designs and applications as power suppliers and physical sensors in the world have been demonstrated based on their unique advantages. In this Special Issue, we would like to address and share basic approaches, new designs, and industrial applications related to thermoelectric, piezoelectric, and triboelectric devices which are on-going in Korea. With this Special Issue, we aim to promote fundamental understanding and to find novel ways to achieve industrial product manufacturing for energy harvesters.

Electrochemical Surface Science: Basics and Applications

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ISBN: 9783039216420 9783039216437 Year: Pages: 398 DOI: 10.3390/books978-3-03921-643-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Inorganic Chemistry
Added to DOAB on : 2019-12-09 11:49:15
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Electrochemical surface science (EC-SS) is the natural advancement of traditional surface science (where gas–vacuum/solid interfaces are studied) to liquid (solution)/electrified solid interfaces. Such a merging between two different disciplines—i.e., surface science (SS) and electrochemistry—officially advanced ca. three decades ago. The main characteristic of EC-SS versus electrochemistry is the reductionist approach undertaken, inherited from SS and aiming to understand the microscopic processes occurring at electrodes on the atomic level. A few of the exemplary keystone tools of EC-SS include EC-scanning probe microscopies, operando and in situ spectroscopies and electron microscopies, and differential EC mass spectrometry (DEMS). EC-SS indirectly (and often unconsciously) receives a great boost from the requirement for rational design of energy conversion and storage devices for the next generation of energetic landscapes. As a matter of fact, the number of material science groups deeply involved in such a challenging field has tremendously expanded and, within such a panorama, EC and SS investigations are intimately combined in a huge number of papers. The aim of this Special Issue is to offer an open access forum where researchers in the field of electrochemistry, surface science, and materials science could outline the great advances that can be reached by exploiting EC-SS approaches. Papers addressing both the basic science and more applied issues in the field of EC-SS and energy conversion and storage materials have been published in this Special Issue.

Keywords

electrosynthesis --- switchable surfaces --- alkoxyamine surfaces --- redox monolayers --- porphyrins --- self-assembly --- surface nanostructures --- in situ EC-STM --- metal-electrolyte interface --- potential-dependent structures --- combined non-covalent control --- ECALE --- CdS --- silver single crystals --- alkanthiols --- SAMs --- EQCM --- AES --- polypyrrole --- diazonium salts --- flexible ITO --- adhesion --- redox properties --- X-ray absorption spectroscopy --- energy dispersive --- quick-XAS --- FEXRAV --- free electron laser --- electrochemistry --- photoelectrochemistry --- photochemistry --- pump &amp --- probe --- oxygen evolution reaction --- water splitting --- iridium --- thin-films --- spin-coating --- model systems --- electrocatalysts --- oxygen evolution reaction --- iridium --- nickel --- electrodeposition --- model catalyst --- water oxidation --- CO oxidation --- DFT --- hydrogen adsorption --- Pt–Ru catalysts --- ordered mesoporous carbons --- graphitization --- CO oxidation --- methanol oxidation --- direct methanol fuel cells --- electrocatalysis --- catalysts --- methanol oxidation reaction --- graphene --- DMFC --- Pt --- SOFC --- cathode --- XAFS --- in situ --- cobalt oxide --- water oxidation --- photo-electrochemistry --- hydroxyl radical --- electro-oxidation --- Lead OPD --- surface alloy --- XPS --- UPS --- EF-PEEM --- ORR --- Platinum --- PVDF --- PEMFC --- in situ ambient pressure XPS --- hard X rays --- photoelectron simulations --- solid/liquid interface --- TiO2 --- APTES --- Cu(111) --- electrochemical interface --- in-situ X-ray diffraction --- carbon nanofiber --- porous fiber --- electrospinning --- mesopore --- micropore --- porogen --- ammonia activation --- surface area --- methanol oxidation --- platinum single crystals --- pH and concentration effects --- adsorbed OH --- reduced graphene oxide --- electrophoretic deposition --- surface chemistry --- click chemistry --- gold --- palladium --- bimetallic alloy --- carbon nanofibers (CNFs) --- cyclic voltammetry (CV) --- Surface Modification --- Blackening of Steel --- Magnetite --- Corrosion Protection --- Auger-Electron Spectroscopy --- Ordered mesoporous carbon --- nitrogen doping --- cobalt-based electrocatalyst --- bifunctional oxygen electrode --- solvothermal method --- underpotential deposition (upd) --- Au --- Pt --- Pd --- nanoparticles --- cyclic voltammetry --- electrocatalysis --- operando --- near ambient pressure XPS --- scanning photoelectron microscopy --- solid oxide fuel cells --- surface science --- electrodeposited alloys --- CO electro-oxidation --- Pt single-crystal electrodes --- potential cycling --- potential stepping --- surface reconstruction --- electrocatalysis --- oxygen reduction --- ORR --- gas diffusion electrode --- platinum --- fuel cells --- thin-films --- benchmarking --- mass transport --- formic acid oxidation --- Au nanocrystals --- Pd thin films --- electrocatalysis --- d-band theory --- polymer --- silicon nanoparticles --- EPR spectroscopy --- photoconversion --- n/a

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