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Preparation And Characterization Of Metal Decorated Metal Oxide Materials And Study Of Porous Structures
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Book Synopsis Preparation and Characterization of Metal Decorated Metal Oxide Materials and Study of Porous Structures by : Daniele Paradiso
Download or read book Preparation and Characterization of Metal Decorated Metal Oxide Materials and Study of Porous Structures written by Daniele Paradiso and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today’s energy needs are presenting challenges which have to be addressed with novel, as well as sustainable and efficient solutions. Within this context, the family of metal oxide (MO) materials offers a broad diversity of both structural and physicochemical properties, along with great versatility of synthesis. Nanoscale MO particles can be decorated with other nanoparticles, particularly of metals, and new properties may arise from such combinations. The present dissertation work reports the details of the development of an experimental method to accomplish the decoration of MO materials with metal species originated by an effusive source, along with the characterization of the decorated materials’ properties. A custom-made vacuum chamber was optimized with several components (e.g. a calibration sensor to measure the effusive beam’s flux; a conical vessel to mix and expose the MO powders to such beam) and utilized to produce different decorated materials. The pure MO materials were synthesized as high-quality, size-selected particles with a patented method. Due to their different structure and optoelectronic character, magnesium (MgO) and zinc (ZnO) oxide were chosen as substrates to explore this novel decoration process; while copper, nickel and cobalt were selected as the decorating metal species, offering the opportunity to study not yet fully understood transition metal electronic properties. The several examples of newly formed materials were characterized using different techniques, in particular X-ray diffraction, photoluminescence and diffuse reflectance spectroscopy (reflectance was then converted into absorbance). These techniques revealed trends in some properties of the novel materials, and were paired with more microscopic probes, namely magnetization and electron microscopy measurements. Great emphasis was put on the Cu/MgO system. In particular, Z-contrast scanning transmission electron microscopy has shown clear presence of metal deposits of copper on the MgO surfaces, confirming the results gained with the previous techniques. Furthermore, a computer code was developed to facilitate the pore size distribution analysis obtained on mesoporous substrates. Several different materials were studied, in order to show the viability of the automated process, and the potential applicability of this method to studying porous structures for the same decoration process described earlier.
Book Synopsis Preparation and Novel Characterization Ways of Mesoporous Metal Oxides by : Simone Mascotto
Download or read book Preparation and Novel Characterization Ways of Mesoporous Metal Oxides written by Simone Mascotto and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2010-09 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work deals with the preparation of mesoporous metal oxide systems by means of new block copolymer templates and the development of original structural characterization methods. In the first part of the work is shown that PIB-PEO block copolymers generate robust and highly porous metal oxide textures characterized by large pores of spherical form. Sol-gel mesoporous TiO2 films were also tested as semiconductors in dye sensitized solar cell devices noticing promising results in comparison with the nanoparticulate systems. Furthermore, the remarkable templating behavior of the PIB-PEO block copolymers is also presented by the preparation of hierarchical silica powders. Due to the structural complexity of these latter systems their characterization could not be exhaustively carried out by means of standard analysis approaches. The employment of the in-situ SAXS/SANS-physisorption technique provided thus an exclusive possibility to study in detail the porosity and its organization in these hierarchical materials. Interesting applications of this novel characterization technique are given also by the analysis of further systems like periodic mesoporous organosilicas (PMOs).
Book Synopsis Synthesis and Characterization of Porous Metal Oxides and Desulfurization Studies of Sulfur Containing Compounds by : Hector Fabian Garces Trujillo
Download or read book Synthesis and Characterization of Porous Metal Oxides and Desulfurization Studies of Sulfur Containing Compounds written by Hector Fabian Garces Trujillo and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis contains two parts: 1) synthesis and characterization of porous metal oxides that include zinc oxide and a porous mixed-valent manganese oxide with an amorphous structure (AMO) 2) the desulfurization studies for the removal of sulfur compounds. Zinc oxide with different nano-scale morphologies may result in various porosities with different adsorption capabilities. A tunable shape microwave synthesis of ZnO nano-spheres in a co-solvent mixture is presented. The ZnO nano-sphere material is investigated as a desulfurizing sorbent in a fixed bed reactor in the temperature range 200 to 400 °C and compared with ZnO nanorods and platelet-like morphologies. Fresh and sulfided materials were characterized by X-ray diffraction (XRD), BET specific surface area, pore volume, scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (SEM/EDX), Raman spectroscopy, and thermogravimetric analysis (TGA). The tunable shape microwave synthesis of ZnO presents a high sulfur sorption capacity at temperatures as low as 200 °C which accounts for a three and four fold enhancement over the other preparations presented in this work, and reached 76 % of the theoretical sulfur capacity (TSC) at 300 °C. Another ZnO material with a bimodal micro- and mesopore size distribution investigated as a desulfurizing sorbent presents a sorption capacity that reaches 87% of the theoretical value for desulfurization at 400 °C at breakthrough time. A deactivation model that considers the activity of the solid reactant was used to fit the experimental data. Good agreement between the experimental breakthrough curves and the model predictions are obtained. Manganese oxides are a type of metal oxide materials commonly used in catalytic applications. Little is known about the adsorption capabilities for the removal of sulfur compounds. One of these manganese oxides; amorphous manganese oxide (AMO) is highly promising material for low temperature sorption processes. Amorphous manganese oxide (AMO) has been used in catalytic processes such as for the catalytic oxidation of benzyl alcohol, the preferential oxidation of CO, and for the capture of formate species. This chapter explores the possibility of using AMO in sorption processes for the removal of two contaminants; H 2S and COS in the temperature range 200 - 400 °C.
Book Synopsis Metal Oxide Catalysis, 2 Volume Set by : S. David Jackson
Download or read book Metal Oxide Catalysis, 2 Volume Set written by S. David Jackson and published by John Wiley & Sons. This book was released on 2008-11-24 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its two-volume structure, this handbook and ready reference allows for comprehensive coverage of both characterization and applications, while uniform editing throughout ensures that the structure remains consistent. The result is an up-to-date review of metal oxides in catalysis. The first volume covers a range of techniques that are used to characterize oxides, with each chapter written by an expert in the field. Volume 2 goes on to cover the use of metal oxides in catalytic reactions. For all chemists and engineers working in the field of heterogeneous catalysis.
Book Synopsis Preparation and Characterization of Metal Oxides by : Chandrappa K. Govindappa
Download or read book Preparation and Characterization of Metal Oxides written by Chandrappa K. Govindappa and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nano and micro sized particles play a very important role in different sectors. In recent years, an electrochemical method has aroused a considerable interest in the synthesis of nano and microsized metal oxide powder and films because of its simplicity, low temperature operation process and viability of commercial production. Therefore, This book is mainly directed towards the Synthesis, Characterization and Applications of different Nano and Micro sized metal oxide particles by different methods like electrochemical generation and solution combustion method. The synthesized particles are characterized by using powder X-ray diffraction (XRD), Thermal analysis (TG-DTA), Scanning electron microscopy (SEM), Energy dispersive X-ray diffraction spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and UV-Vis spectroscopic techniques.
Download or read book Nanocasting written by An-Hui Lu and published by Royal Society of Chemistry. This book was released on 2010 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials with tailored properties are regarded as a fundamental element in the development of future science and technology. Research is still ongoing into the nanosized construction elements required to create functional solids. The recently developed technique, nanocasting, has great advantage over others in terms of the synthesis of special nanostructured materials by the careful choice of suitable elements and nanoengineering steps. This new book summarizes the recent developments in nanocasting, including the principles of nanocasting, syntheses of novel nanostructured materials, characterization methods, detailed synthetic recipes and further possible development in this area. The book focuses on the synthesis of porous solids from the viewpoint of methodology and introduces the science of nanocasting from fundamental principles to their use in synthesis of various materials. It starts by outlining the principles of nanocasting, requirements to the templates and precursors and the tools needed to probe matter at the nanoscale level. It describes how to synthesize nano structured porous solids with defined characteristics and finally discusses the functionalization and application of porous solids. Special attention is given to new developments in this field and future perspectives. A useful appendix covering the detailed synthetic recipes of various templates including porous silica, porous carbon and colloidal spheres is included which will be invaluable to researchers wanting to follow and reproduce nanocast materials. Topics covered in the book include: * inorganic chemistry * organic chemistry * solution chemistry * sol-gel and interface science * acid-base equilibria * electrochemistry * biochemistry * confined synthesis The book gives readers not only an overview of nanocasting technology, but also sufficient information and knowledge for those wanting to prepare various nanostructured materials without needing to search the available literature.
Book Synopsis Preparation and Characterization of Several Transition Metal Oxide Systems by : Yunchang Zhang
Download or read book Preparation and Characterization of Several Transition Metal Oxide Systems written by Yunchang Zhang and published by . This book was released on 1989 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Macroporous Metal Oxides by : Sergey Sokolov
Download or read book Macroporous Metal Oxides written by Sergey Sokolov and published by . This book was released on 2003 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Oxide-Based Thin Film Structures by : Nini Pryds
Download or read book Metal Oxide-Based Thin Film Structures written by Nini Pryds and published by . This book was released on 2017 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fabrication of Metal–Organic Framework Derived Nanomaterials and Their Electrochemical Applications by : Wei Xia
Download or read book Fabrication of Metal–Organic Framework Derived Nanomaterials and Their Electrochemical Applications written by Wei Xia and published by Springer. This book was released on 2018-04-03 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis systematically introduces readers to a new metal-organic framework approach to fabricating nanostructured materials for electrochemical applications. Based on the metal-organic framework (MOF) approach, it also demonstrates the latest ideas on how to create optimal MOF and MOF-derived nanomaterials for electrochemical reactions under controlled conditions. The thesis offers a valuable resource for researchers who want to understand electrochemical reactions at nanoscale and optimize materials from rational design to achieve enhanced electrochemical performance. It also serves as a useful reference guide to fundamental research on advanced electrochemical energy storage materials and the synthesis of nanostructured materials.
Book Synopsis Preparation and Characterization of Metal Oxide Species Anchored on Clays by : Roxana Sharif
Download or read book Preparation and Characterization of Metal Oxide Species Anchored on Clays written by Roxana Sharif and published by . This book was released on 1989 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Characterization of Sputtered Metal Oxides and Nitrides for Optical Applications by : Monica Veszelei
Download or read book Preparation and Characterization of Sputtered Metal Oxides and Nitrides for Optical Applications written by Monica Veszelei and published by . This book was released on 1997 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Colloidal Metal Oxide Nanoparticles by :
Download or read book Colloidal Metal Oxide Nanoparticles written by and published by Elsevier. This book was released on 2019-10-16 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloidal Metal Oxide Nanoparticles: Synthesis, Characterization and Applications is a one-stop reference for anyone with an interest in the fundamentals, synthesis and applications of this interesting materials system. The book presents a simple, effective and detailed discussion on colloidal metal oxide nanoparticles. It begins with a general introduction of colloidal metal oxide nanoparticles, then delves into the most relevant synthesis pathways, stabilization procedures, and synthesis and characterization techniques. Final sections discuss promising applications, including bioimaging, biosensing, diagnostic, and energy applications—i.e., solar cells, supercapacitors and environment applications—i.e., the treatment of contaminated soil, water purification and waste remediation. Provides the most comprehensive resource on the topic, from fundamentals, to synthesis and characterization techniques Presents key applications, including biomedical, energy, electronic and environmental Discusses the most relevant techniques for synthesis, patterning and characterization
Book Synopsis Preparation, Characterization and Catalytic Activity Study of Transition Metal Doped Porous Ɏ-alumina by : Seham Nasser Hadrami
Download or read book Preparation, Characterization and Catalytic Activity Study of Transition Metal Doped Porous Ɏ-alumina written by Seham Nasser Hadrami and published by . This book was released on 2013 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Oxide Nanostructures by : Daniela Nunes
Download or read book Metal Oxide Nanostructures written by Daniela Nunes and published by Elsevier. This book was released on 2018-11-01 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanostructures: Synthesis, Properties and Applications covers the theoretical and experimental aspects related to design, synthesis, fabrication, processing, structural, morphological, optical and electronic properties on the topic. In addition, it reviews surface functionalization and hybrid materials, focusing on the advantages of these oxide nanostructures. The book concludes with the current and future prospective applications of these materials. Users will find a complete overview of all the important topics related to oxide nanostructures, from the physics of the materials, to its application. Delves into hybrid structured metal oxides and their promising use in the next generation of electronic devices Includes fundamental chapters on synthesis design and the properties of metal oxide nanostructures Provides an in-depth overview of novel applications, including chromogenics, electronics and energy
Book Synopsis Metal Nanoparticles by : Daniel L. Fedlheim
Download or read book Metal Nanoparticles written by Daniel L. Fedlheim and published by CRC Press. This book was released on 2001-10-26 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art reference, Metal Nanoparticles offers the latest research on the synthesis, characterization, and applications of nanoparticles. Following an introduction of structural, optical, electronic, and electrochemical properties of nanoparticles, the book elaborates on nanoclusters, hyper-Raleigh scattering, nanoarrays, and several applications including single electron devices, chemical sensors, biomolecule sensors, and DNA detection. The text emphasizes how size, shape, and surface chemistry affect particle performance throughout. Topics include synthesis and formation of nanoclusters, nanosphere lithography, modeling of nanoparticle optical properties, and biomolecule sensors.
Book Synopsis Preparation and Characterization of Nanostructured Metal Oxides for Application to Biomass Upgrading by : Kenneth Finch
Download or read book Preparation and Characterization of Nanostructured Metal Oxides for Application to Biomass Upgrading written by Kenneth Finch and published by . This book was released on 2013 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
