Download or read book Synthesis and Electrochemical Study of Pd and Pt Based Nanostructured Materials written by Shuai Chen and published by . This book was released on 2011 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanostructured Materials written by Zesheng Li and published by Elsevier. This book was released on 2023-08-31 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured Materials: Physicochemical Chemistry Fundamentals for Energy and Environmental Applications summarizes research knowledge and helps advanced students, researchers and industrial technicians understand specific applications of nanomaterials in energy and the environment. Sections bring a strong foundational focus on the physicochemical basis of nanomaterials for these applications, the basic theory and physicochemical basis of nanomaterials, an energy and environment applications examination of typical cases, and progress. This book will appeal to researchers in the chemical sciences (inorganic and physical chemistry, coordination chemistry, molecular dynamics, electrochemistry, photocatalysis, thermocatalysis, thermodynamics, etc.), nanoscience (graphene, carbon nanotubes, nanocrystals, nano catalysis, energy, and environment-nano science), and more. Efficient use of energy, eco-friendly environmental systems, and technologies play an important role in global sustainable development. Multifunctional nanocomposites have excellent properties and can meet the practical needs of energy development and environmental treatment. They have been gradually applied in chemical materials, energy preparation, pollution control and other fields and have achieved impressive development. Provides a unified overview of a large variety of different applications on the design and synthesis of nanomaterials with potential applications in various conventional and new energy and environmental technologies Provides a strong foundational focus on the analysis of the structure of nanomaterials, the basic principles of design (nanomaterial structure-activity relationship), and the theoretical basis of physical chemistry (theoretical basis of nanomaterial design and applications) Meets a need to summarize and examine ongoing research and advances in a rapidly developing field
Download or read book Synthesis and Electrochemical Study of Palladium based Nanomaterials for Green Energy Applications written by Cassandra Kelly Ostrom and published by . This book was released on 2013 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Rising global energy consumption leads to increased environmental impacts. The continued use of current energy resources, e.g. fossil fuels, will exaggerate the cumulative nature of CO2 byproduct emissions in the atmosphere. The development and implementation of a hydrogen economy, as a solution to offset degradative environmental impacts, will likely enable opportunities for maintaining or improving standards of living while significantly lowering carbon emissions. Palladium has proven to be a strong contender as an enabling material that encompasses many aspects of a prospective hydrogen economy, lending promise to applications such as hydrogen purification, storage and fuel cell catalysis. In my M.Sc. study, Pd-based nanomaterials have been synthesized and examined for their applications in hydrogen storage and fuel cell catalysis. The surface properties of synthesized Pd-based nanomaterials were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDS), X-ray diffraction (XRD), X-ray Photoelectron spectroscopy (XPS), and N2 gas adsorption/desorption.
Download or read book Nanostructured Materials for Electrochemical Energy Production and Storage written by Edson Roberto Leite and published by Springer Science & Business Media. This book was released on 2010-03-20 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is an authoritative reference from world-renowned research groups for those working in materials science and electrochemistry. The authors describe properties of nanostructured materials that can improve performance in alternative energy devices.
Download or read book Nanostructured Smart Materials written by V. R. Remya and published by CRC Press. This book was released on 2021-06-30 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume presents various research studies that focus on the development of advanced nanomaterials and their composites and blends for different applications in sensing, electrical, biomedical, coating, industrial applications, etc. This book includes detailed discussions on the synthesis, properties, processing, and potential applications of nanomaterials and their blends and composites. Some chapters also explain the basic theoretical aspects of these nanostructured materials and systems, which help readers to develop a better understanding various application areas, including construction. Nanostructured Smart Materials: Synthesis, Characterization and Potential Applications responds to the need for advanced polymeric materials and nanostructured materials with ultimate performance and enhanced qualities and properties for varied applications. The chapters highlight information and research that will be valuable for development of new smart materials. This book will be a useful reference source for universities, colleges, researchers from R&D groups, scientists, postdoctoral fellows, industrialists, graduate and postgraduate students, and faculty.
Download or read book Metallic Nanomaterials written by Kumar Challa and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-11-19 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents latest research results on synthesis and application of metallic nanomaterials. Fabrication techniques, analytic properties, as well as theoretical aspects are discussed. Size- and shape-controlled synthesis of silver, gold, copper, ruthenium, tellurium, selenium and palladium nanoparticles are reviewed. Further topics are the synthesis from microplasma and shape-control for electrocatalytic applications.
Download or read book One dimensional Nanostructures for PEM Fuel Cell Applications written by Shangfeng Du and published by Academic Press. This book was released on 2017-08-07 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: One-dimensional Nanostructures for PEM Fuel Cell Applications provides a review of the progress made in 1D catalysts for applications in polymer electrolyte fuel cells. It highlights the improved understanding of catalytic mechanisms on 1D nanostructures and the new approaches developed for practical applications, also including a critical perspective on current research limits. The book serves as a reference for the design and development of a new generation of catalysts to assist in the realization of successful commercial use that have the potential to decarbonize the domestic heat and transport sectors. In addition, a further commercialization of this technology requires advanced catalysts to address major obstacles faced by the commonly used Pt/C nanoparticles. The unique structure of one-dimensional nanostructures give them advantages to overcome some drawbacks of Pt/C nanoparticles as a new type of excellent catalysts for fuel cell reactions. In recent years, great efforts have been devoted in this area, and much progress has been achieved. Provides a review of 1D catalysts for applications in polymer electrolyte fuel cells Presents an ideal reference for the design and development of a new generation of catalysts to assist in the realization of successful commercial use Highlights the progress made in recent years in this emerging field
Download or read book Nanomaterials written by Nandakumar Kalarikkal and published by CRC Press. This book was released on 2018-05-20 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book focuses on recent developments in this field, focusing on nanostructured materials and nanocomposites. The book deals with some recent developments in the synthesis and characterization of nanomaterial as well as its incorporation into polymer matrixes. The biological applications of nanomaterials are also discussed in detail, along with new approaches in nanostructured materials and nanocomposites. Highlights include a detailed discussion on synthesis of nanostructured materials and nanocomposites; reviews of biodiesel production; green nanostructured materials; and nanosensors, nanomedicines, and biomedical applications of nanostructured materials.
Download or read book Electrochemical Biosensors written by Serge Cosnier and published by CRC Press. This book was released on 2015-01-26 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since four decades, rapid detection and monitoring in clinical and food diagnostics and in environmental and biodefense have paved the way for the elaboration of electrochemical biosensors. Thanks to their adaptability, ease of use in relatively complex samples, and their portability, electrochemical biosensors now are one of the mainstays of analy
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 2018-04-13 with total page 138 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.
Download or read book Synthesis and Characterization of Nanostructured Palladium based Alloy Electrocatalysts written by Arindam Sarkar and published by . This book was released on 2009 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low temperature fuel cells like proton exchange membrane fuel cells (PEMFC) are expected to play a crucial role in the future hydrogen economy, especially for transportation applications. These electrochemical devices offer significantly higher efficiency compared to conventional heat engines. However, use of exotic and expensive platinum as the electrocatalyst poses serious problems for commercial viability. In this regard, there is an urgent need to develop low-platinum or non-platinum electrocatalysts with electrocatalytic activity for the oxygen reduction reaction (ORR) superior or comparable to that of platinum. This dissertation first investigates non-platinum, palladium-based alloy electrocatalysts for ORR. Particularly, Pd-M (M = Mo and W) alloys are synthesized by a novel thermal decomposition of organo-metallic precursors. The carbon-supported Pd-M (M = Mo, W) electrocatalyts are then heat treated up to 900 °C in H2 atmosphere and investigated for their phase behavior. Cyclic voltammetry (CV) and rotating disk electrode (RDE) measurements reveal that the alloying of Pd with Mo or W significantly enhances the catalytic activity for ORR as well as the stability (durability) of the electrocatalysts. Additionally, both the alloy systems exhibit high tolerance to methanol, which is particularly advantageous for direct methanol fuel cells (DMFC). The dissertation then focuses on one-pot synthesis of carbon-supported multi-metallic Pt-Pd-Co nanoalloys by a rapid microwave-assisted solvothermal (MW-ST) method. The multi-metallic alloy compositions synthesized by the MW-ST method show much higher catalytic activity for ORR compared to their counterparts synthesized by the conventional borohydride reduction method. Additionally, a series of Pt encapsulated Pd-Co nanoparticle electrocatalysts are synthesized by the MW-ST method and characterized to understand their phase behavior, surface composition, and electrocatalytic activity for ORR. Finally, the dissertation focuses on carbon-supported binary Pt@Cu and ternary PtxPd1-x@Cu "core-shell" nanoparticles synthesized by a novel galvanic displacement of Cu by Pt4+ and Pd2+ at ambient conditions. Structural characterizations suggest that the Pt@Cu nanoparticles have a Pt-Cu alloy layer sandwiched between a copper core and a Pt shell. The electrochemical data clearly point to an enhancement in the activity for ORR for the Pt@Cu "core-shell" nanoparticle electrocatalysts compared to the commercial Pt electrocatalyst, both on per unit mass of Pt and per unit active surface area basis. The increase in activity for ORR is ascribed to electronic modification of the outer Pt shell by the Pt-Cu alloy core. However, incorporation of Pd to obtain PtxPd1-x@Cu deteriorates the activity for ORR.
Download or read book Nanostructure of Transition Metal and Metal Oxide for Electrocatalysis written by Yanjuan Gu and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Nanostructure of Transition Metal and Metal Oxide for Electrocatalysis" by Yanjuan, Gu, 谷艳娟, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled NANOSTRUCTURE OF TRANSITION METAL AND METAL OXIDE FOR ELECTROCATALYSIS Submitted by Gu Yan Juan for the degree of Doctor of Philosophy at The University of Hong Kong in August 2006 Pd, Pt, and Ru nanoparticles that were uniformly dispersed on multi-walled carbon nanotubes (MWNTs) were synthesized by vacuum pyrolysis using metal acetylacetonate as metal precursor, and the nanocomposites were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X- ray diffraction (XRD). The size and distribution of the nanoparticles were strongly affected by the reaction time, temperature, and the initial mass ratio of the metal precursors to MWNTs. The higher temperature, the smaller Pd nanoparticles were formed at the range of 250 to 500 C. The average size of the Pd nanoparticles increased with the increase in mass ratio of the metal precursors to MWNTs. The particle size of Pt and Ru showed little change with the change in mass ratio. Pt and Ru nanoparticles had the mean diameters of 3.00.6 and 2.50.4 nm when the mass ratio of Pt(acac) and Ru(acac) to 2 3 MWNTs was both 2:1 at 500 C. The electrocatalytic activity of Pt/MWNTs and PtRu/MWNTs was investigated at room temperature by cyclic voltammetry and chronoamperometry. All of the electrochemical results showed that the PtRu/MWNTs catalyst exhibit high activity for methanol oxidation that resulted from the high surface area of carbon nanotubes and the platinum/ruthenium nanoparticles. Compared with Pt/MWNTs, the onset potential is much lower and the ratio of forward anodic peak current to reverse anodic peak current is much higher for methanol oxidation. Pt Ru /MWNTs displayed the best electrocatalytic 45 55 activities among all carbon nanotubes supported Pt and PtRu catalysts. Hyperbranched RuO nanostructures can be formed through the oxidation of Ru nanoparticles at relatively low temperatures in air, which is a very simple and low cost method. The morphology of the RuO nanostructure is closely associated with the dispersivity of the Ru nanoparticles on the MWNTs. Cu, Pt and Pd nanoparticles are very effective catalysts in the formation of RuO hyperbranched nanostructures. The electrochemical studies of these nanorods demonstrated that they display characteristic properties of RuO (110) surface. The successful attachment of Pt nanoparticles to RuO surface through a simple, two-step chemically controlled procedure is reported. The effect of the single crystal structure of RuO nanorods on the electrocatalytic activity of Pt nanoparticles was investigated, showing that the presence of the RuO nanorods greatly increases the electrochemical activity of electrodes toward methanol oxidation, not only increasing the current density but also shifting the onset potential of methanol electrooxidation to over 200 mV lower than that on the Pt nanoparticle electrode. The results described here also demonstrate the ability of metal oxide nanorods to serve as a conductive support for fuel cell applications. DOI: 10.5353/th_b3777439 Subjects: Electrocatalysis Transition metals Nanoparticles Nanostructured materials Methanol - Oxidation
Download or read book Advanced Nanomaterials for Electrochemical Based Energy Conversion and Storage written by and published by Elsevier. This book was released on 2019-08-15 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Nanomaterials for Electrochemical-Based Energy Conversion and Storage covers recent progress made in the rational design and engineering of functional nanomaterials for battery and supercapacitor applications in the forms of electrode materials, separators and electrolytes. The book includes detailed discussions of preparation methods, structural characterization, and manipulation techniques. Users will find a comprehensive illustration on the close correlation between material structures and properties, such as energy density, power density, cycle number and safety. Provides an overview on the application of nanomaterials for energy storage and power systems Includes a description of the fundamental aspects of the electrochemical process Explores the new aspects of electrolyte and separator systems
Download or read book Nanopatterned and Nanoparticle Modified Electrodes written by Richard C. Alkire and published by John Wiley & Sons. This book was released on 2017-03-13 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume XVII in the "Advances in Electrochemical Science and Engineering" series, this monograph covers progress in this rapidly developing field with a particular emphasis on important applications, including spectroscopy, medicinal chemistry and analytical chemistry. As such it covers nanopatterned and nanoparticle-modified electrodes for analytical detection, surface spectroscopy, electrocatalysis and a fundamental understanding of the relation between the electrode structure and its function. Written by a group of international experts, this is a valuable resource for researchers working in such fields as electrochemistry, materials science, spectroscopy, analytical and medicinal chemistry.
Download or read book Nanomaterials for Fuel Cell Catalysis written by Kenneth I. Ozoemena and published by Springer. This book was released on 2016-07-05 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global experts provide an authoritative source of information on the use of electrochemical fuel cells, and in particular discuss the use of nanomaterials to enhance the performance of existing energy systems. The book covers the state of the art in the design, preparation, and engineering of nanoscale functional materials as effective catalysts for fuel cell chemistry, highlights recent progress in electrocatalysis at both fuel cell anode and cathode, and details perspectives and challenges in future research.
Download or read book Synthesis Activation and Electrochemical Study of PT and PT based Bimetallic Nano Particles for Anode Catalysts of Direct Methanol Fuel Cells DMFCs written by Zhufang Liu and published by . This book was released on 2007 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrodeposition of Nanostructured Materials written by Farzad Nasirpouri and published by Springer. This book was released on 2016-10-12 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of electrodeposition of nanomaterials from principles to modern concepts for advanced materials in science and technology. Electrochemical deposition or electrodeposition is explained for fabrication and mass production of functional and nanostructured device materials. The present book spans from principles to modern insights and concepts. It gives a comprehensive overview of the electrochemistry of materials, which is useful as basic information to understand concepts used for nanostructuring of electrodeposited materials, reviews the electrodeposition constituents, thermodynamics and kinetics of electrodeposition, electrochemical and instrumental assessment techniques and other physical factors affecting the electrodeposition mechanisms. A wide variety of nanostructured materials and related concepts and applications are explained with respect to nanocrystals, nanocrystalline films, template-based nanostructures, nanocomposite films, nanostructures on semiconductors, multilayers, mesoporous films, scanning microscopical probe assisted fabrication and galvanic replacement. This book is useful for researchers in materials science, engineering technologists and graduate students. It can also be used as a textbook for undergraduates and graduate students studying related disciplines.
