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Diffusion In Hydrogen Storage Alloys
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Book Synopsis Diffusion in Hydrogen Storage Alloys by : David J. Fisher
Download or read book Diffusion in Hydrogen Storage Alloys written by David J. Fisher and published by Trans Tech Publications Ltd. This book was released on 2015-10-08 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a summary of relevant diffusion data. Enormous amount of research has been expended on the option of storing the hydrogen in solid metal alloys. The loading of metals with hydrogen, and its extraction, depends upon several processes. It is found that the slowest, and therefore the rate-determining process is hydrogen diffusion in the solid.
Book Synopsis Hydrogen Storage Materials by : R. G. Barnes
Download or read book Hydrogen Storage Materials written by R. G. Barnes and published by . This book was released on 1988 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ames Laboratory, Iowa, USA
Book Synopsis Hydrogen Storage Alloys by : Shumin Han
Download or read book Hydrogen Storage Alloys written by Shumin Han and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-09-25 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents current research progress on hydrogen storage alloys, with a special focus on their applications in batteries. Background, formation mechanisms, electrochemical characteristics, and effects of elemental substitution are covered. Provides an up-to-date overview of the theme for experienced researchers, while including enough fundamentals to serve as a handy, practical introduction for newcomers to the field.
Book Synopsis Hydrogen Storage in Encapsulated Magnesium Nickel Alloys Prepared by Intergranular Diffusion by : Pratima Addepalli
Download or read book Hydrogen Storage in Encapsulated Magnesium Nickel Alloys Prepared by Intergranular Diffusion written by Pratima Addepalli and published by . This book was released on 2002 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Diffusion in Metals by : David J. Fisher
Download or read book Hydrogen Diffusion in Metals written by David J. Fisher and published by Trans Tech Publications Ltd. This book was released on 1999-03-31 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work draws upon Diffusion and Defect Forum's 30-year project of summarizing recent progress in the fields of diffusion and defect research, by collating the relevant data which have been published during that time. The large number of studies of iron alloys reflects the great commercial importance of hydrogen embrittlement; an annoying phenomenon which has long plagued steel fabricators.
Book Synopsis The Diffusion of Hydrogen in Liquid Iron Alloys by : Patrik Joris Depuydt
Download or read book The Diffusion of Hydrogen in Liquid Iron Alloys written by Patrik Joris Depuydt and published by . This book was released on 1969 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gaseous and Electrochemical Hydrogen Storage Properties of Mg-Based Thin Films by : Gongbiao Xin
Download or read book Gaseous and Electrochemical Hydrogen Storage Properties of Mg-Based Thin Films written by Gongbiao Xin and published by Springer. This book was released on 2016-02-02 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis introduces the preparation of a series of Mg-based thin films with different structures using magnetron sputtering, as well as the systematical investigation of their gaseous and electrochemical hydrogen storage properties under mild conditions. It reviews promising applications of Mg-based thin films in smart windows, hydrogen sensors and Ni-MH batteries, while also providing significant insights into research conducted on Mg-based hydrogen storage materials, especially the Mg-based films. Moreover, the unique experimental procedures and methods (including electric resistance, optical transmittance and electrochemical methods) used in this thesis will serve as a valuable reference for researchers in the field of Mg-based hydrogen storage films.
Book Synopsis Hydrogen in Metals: Application-oriented properties by : G. Alefeld
Download or read book Hydrogen in Metals: Application-oriented properties written by G. Alefeld and published by . This book was released on 1978 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Storage for Sustainability by : Marcel Van de Voorde
Download or read book Hydrogen Storage for Sustainability written by Marcel Van de Voorde and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-09-07 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon neutral hydrogen technologies play a role in preventing climate change and the capacity to store and transport hydrogen will be critical in the growing hydrogen economy. This book focuses on new developments of hydrogen storage technologies and deals with an overview of the materials and science necessary for storing hydrogen with great attention to the synthesis, kinetics, and thermodynamics of new advanced materials e.a. porous carbon and nanomaterials. Ideal book for students of materials science, chemistry, physics; for researchers, chemical- and mechanical engineers, for industrialists, policymakers, safety agencies and governments.
Book Synopsis Hydrogen Storage Materials by : Darren P. Broom
Download or read book Hydrogen Storage Materials written by Darren P. Broom and published by Springer Science & Business Media. This book was released on 2011-02-28 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of storing hydrogen safely and effectively is one of the major technological barriers currently preventing the widespread adoption of hydrogen as an energy carrier and the subsequent transition to a so-called hydrogen economy. Practical issues with the storage of hydrogen in both gas and liquid form appear to make reversible solid state hydrogen storage the most promising potential solution. Hydrogen Storage Materials addresses the characterisation of the hydrogen storage properties of the materials that are currently being considered for this purpose. The background to the topic is introduced, along with the various types of materials that are currently under investigation, including nanostructured interstitial and complex hydrides, and porous materials, such as metal-organic frameworks and microporous organic polymers. The main features of Hydrogen Storage Materials include: an overview of the different types of hydrogen storage materials and the properties that are of interest for their practical use; descriptions of the gas sorption measurement methods used to determine these properties, and the complementary techniques that can be used to help corroborate hydrogen uptake data; and extensive coverage of the practical considerations for accurate hydrogen sorption measurement that drive both instrument design and the development of experimental methodology. Hydrogen Storage Materials provides an up-to-date overview of the topic for experienced researchers, while including enough introductory material to serve as a useful, practical introduction for newcomers to the field.
Book Synopsis Theoretical Studies of Hydrogen Storage Alloys by :
Download or read book Theoretical Studies of Hydrogen Storage Alloys written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical calculations were carried out to search for lightweight alloys that can be used to reversibly store hydrogen in mobile applications, such as automobiles. Our primary focus was on magnesium based alloys. While MgH2 is in many respects a promising hydrogen storage material, there are two serious problems which need to be solved in order to make it useful: (i) the binding energy of the hydrogen atoms in the hydride is too large, causing the release temperature to be too high, and (ii) the diffusion of hydrogen through the hydride is so slow that loading of hydrogen into the metal takes much too long. In the first year of the project, we found that the addition of ca. 15% of aluminum decreases the binding energy to the hydrogen to the target value of 0.25 eV which corresponds to release of 1 bar hydrogen gas at 100 degrees C. Also, the addition of ca. 15% of transition metal atoms, such as Ti or V, reduces the formation energy of interstitial H-atoms making the diffusion of H-atoms through the hydride more than ten orders of magnitude faster at room temperature. In the second year of the project, several calculations of alloys of magnesium with various other transition metals were carried out and systematic trends in stability, hydrogen binding energy and diffusivity established. Some calculations of ternary alloys and their hydrides were also carried out, for example of Mg6AlTiH16. It was found that the binding energy reduction due to the addition of aluminum and increased diffusivity due to the addition of a transition metal are both effective at the same time. This material would in principle work well for hydrogen storage but it is, unfortunately, unstable with respect to phase separation. A search was made for a ternary alloy of this type where both the alloy and the corresponding hydride are stable. Promising results were obtained by including Zn in the alloy.
Book Synopsis Hydrogen Diffusion in Metals by : D. J. Fisher
Download or read book Hydrogen Diffusion in Metals written by D. J. Fisher and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its small size, the hydrogen atom is, wanted or unwanted, an ubiquitous diffusant in many metallic systems. It has long been known for its harmful effect upon mild steel sheet; the deleterious phenomenon of hydrogen-embrittlement having been recognized since the early days of the industrial revolution. Its behavior in some metals is further complicated by its tendency to form hydrides with the metal, or with various non-metallic impurities. The ability of some metals and alloys to store large quantities of hydrogen - first recognized in the 19th century - is another complicating factor. The complexity of metal-hydrogen behavior was undoubtedly also the cause of the mistaken 'cold fusion' claims of the late 1980s. The present issue comprises a compilation of hydrogen diffusion and permeation data in metals. These data are believed to be 'pure': that is, free from the interfering effects of hydride formation, etc. The almost 600 entries, 201 tables and 41 figures cover the period from 1966 to 2013. These are supplemented by an original review, by T.B.Flanagan of the University of Vermont, which has as its subject, The Role of the Thermodynamic Factor in Hydrogen Diffusion in Metal and Alloy Membranes.
Book Synopsis Handbook of Nanomaterials for Hydrogen Storage by : Mieczyslaw Jurczyk
Download or read book Handbook of Nanomaterials for Hydrogen Storage written by Mieczyslaw Jurczyk and published by CRC Press. This book was released on 2017-11-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale metallic and ceramic materials, also called nanomaterials, have held enormous attraction for researchers over the past few years. They demonstrate novel properties compared with conventional (microcrystalline) materials owing to their nanoscale features. Recently, mechanical alloying and powder metallurgy processes for the fabrication of metal–ceramic/alloy–ceramic nanocomposites with a unique microstructure have been developed. This book focuses on the fabrication of nanostructured hydrogen storage materials and their nanocomposites. The potential application of the research presented in the book fits well into the EU Framework Programme for Research and Innovation Horizon 2020, where one of the societal challenges is secure, clean, and efficient energy. Wherever possible, the authors have illustrated the subject by their own results. The goal of the book is to provide comprehensive knowledge about materials for energy applications to graduate students and researchers in chemistry, chemical engineering, and materials science.
Download or read book Hydrogen Storage written by Jianjun Liu and published by BoD – Books on Demand. This book was released on 2012-09-05 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen, as an energy carrier, is widely regarded as a potential cost effective, renewable, and clean energy alternative to petroleum in order to mitigate energy shortage and global climate warming issues that the world is currently facing. However, storage of hydrogen is a substantial challenge, especially for applications in vehicles with fuel cells that use proton-exchange membranes (PEMs). Therefore, scientific community has started focusing their research activities on developing advanced hydrogen storage materials through nanotechnology. The book presents a wide variety of nanostructured materials used for application in hydrogen storage, covering chemical and physical storage approaches. The research topics include computational design, synthesis, processing, fabrication, characterization, properties and applications of nanomaterials in hydrogen storage systems.
Book Synopsis Molecular Dynamics Simulations of Hydrogen Diffusion in Aluminum by :
Download or read book Molecular Dynamics Simulations of Hydrogen Diffusion in Aluminum written by and published by . This book was released on 2016 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, hydrogen diffusion impacts the performance of solid-state hydrogen storage materials and contributes to the embrittlement of structural materials under hydrogen-containing environments. In atomistic simulations, the diffusion energy barriers are usually calculated using molecular statics simulations where a nudged elastic band method is used to constrain a path connecting the two end points of an atomic jump. This approach requires prior knowledge of the "end points". For alloy and defective systems, the number of possible atomic jumps with respect to local atomic configurations is tremendous. Even when these jumps can be exhaustively studied, it is still unclear how they can be combined to give an overall diffusion behavior seen in experiments. Here we describe the use of molecular dynamics simulations to determine the overall diffusion energy barrier from the Arrhenius equation. This method does not require information about atomic jumps, and it has additional advantages, such as the ability to incorporate finite temperature effects and to determine the pre-exponential factor. As a test case for a generic method, we focus on hydrogen diffusion in bulk aluminum. We find that the challenge of this method is the statistical variation of the results. However, highly converged energy barriers can be achieved by an appropriate set of temperatures, output time intervals (for tracking hydrogen positions), and a long total simulation time. Our results help elucidate the inconsistencies of the experimental diffusion data published in the literature. The robust approach developed here may also open up future molecular dynamics simulations to rapidly study diffusion properties of complex material systems in multidimensional spaces involving composition and defects.
Book Synopsis Hydrogen in Intermetallic Compounds II by : Louis Schlapbach
Download or read book Hydrogen in Intermetallic Compounds II written by Louis Schlapbach and published by Springer Science & Business Media. This book was released on 2006-01-21 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of hydrogen in an on metals and alloys is important in a number ofdisciplines including solid-state physics, materials science, physical chemistry, and energy technology. This volume treats the dynamics of hydrogen in intermetallic compounds, surface properties, kinetics, and applications of metal hydrides in energy technology. In addition, selected experimental methods are described. The introductory chapter will enable non-specialists to gain an overall picture of the field and to appreciate the relevant scientific issue. The companion volume, Hydrogene in Intermetallic Compounds I, was published as Vol. 63 of Topics in Applied Physics.
Book Synopsis Hydrogen in Metals III by : R.G. Barnes
Download or read book Hydrogen in Metals III written by R.G. Barnes and published by Springer. This book was released on 1997-03-25 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen in Metals III is the fifth book in the series Topics in Applied Physics that discusses properties of metal-hydrogen systems. It considers results of both basic and application-oriented research, focusing on fields where recent progress was significant or where previous comprehensive reviews do not exist. The topics of the new volume are: the theoretical and the experimental status of hydrogen diffusion; nuclear magnetic resonance; neutron scattering; material problems caused by the hydrogen; application of metal hydrides for hydrogen storage and purification, for chemical engines, for hydrogen sensors, and for batteries and fuel cells.
