Download or read book Thermodynamics and Kinetics of Hydrogen Storage in Magnesium Hydride a Theoretical Study of Catalyst dopant Defect and Size Effects written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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

Download or read book Thermodynamics Kinetics and Modeling Studies of Magnesium Hydride Enhance by Catalysts for Hydrogen Storage Applications written by Saidi Temitope Sabitu and published by . This book was released on 2012 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermodynamic and Kinetic Studies of Alkali Metal Doped lithium Amide magnesium Hydride Hydrogen Storage System written by Jalaal A. Hayes and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Renewable and Clean Energy Systems Based on Advanced Nanomaterials written by Sahar Zinatloo-Ajabshir and published by Elsevier. This book was released on 2024-07-04 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Renewable and Clean Energy Systems Based on Advanced Nanomaterials: Basis, Preparation and Applications describes the fundamental aspects of a diverse range of nanomaterials used in the fields of renewable and clean energy. Various methods of preparing several different nanomaterials for green energy systems, such as advanced nanomaterials for solar cells, mixed metal oxide-based nanomaterials for hydrogen storage, and active nanomaterials for Li ion batteries are presented along with their advantages, disadvantages, and applications. Chapters also discuss novel methods of power analysis, frequency regulation methods, practical applications of solar panels, economic efficiency of solar energy, solar physics, and much more.This is a valuable resource on the basic science, preparation methods, and practical applications of advanced nanomaterials for green energy systems. - Features recent advances on nanomaterials preparation methods and their applications in photovoltaic technology - Discusses sustainable strategies for producing large-scale nanomaterials, focusing on preparation techniques that are cost-effective and eco-friendly - Reviews the efficiency of nanomaterials used in solar energy storage and conversion

Download or read book Solid State Hydrogen Storage written by Gavin Walker and published by Woodhead Publishing. This book was released on 2008-09-30 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen fuel cells are emerging as a major alternative energy source in transportation and other applications. Central to the development of the hydrogen economy is safe, efficient and viable storage of hydrogen. Solid-state hydrogen storage: Materials and chemistry reviews the latest developments in solid-state hydrogen storage. Part one discusses hydrogen storage technologies, hydrogen futures, hydrogen containment materials and solid-state hydrogen storage system design. Part two reviews the analysis of hydrogen interactions including structural characterisation of hydride materials, neutron scattering techniques, reliably measuring hydrogen uptake in storage materials and modelling of carbon-based materials for hydrogen storage. Part three analyses physically-bound hydrogen storage with chapters on zeolites, carbon nanostructures and metal-organic framework materials. Part four examines chemically-bound hydrogen storage including intermetallics, magnesium hydride, alanates, borohydrides, imides and amides, multicomponent hydrogen storage systems, organic liquid carriers, indirect hydrogen storage in metal ammines and technological challenges in hydrogen storage. With its distinguished editor and international team of contributors, Solid-state hydrogen storage: Materials and chemistry is a standard reference for researchers and professionals in the field of renewable energy, hydrogen fuel cells and hydrogen storage. Assesses hydrogen fuel cells as a major alternative energy source Discusses hydrogen storage technologies and solid-state hydrogen storage system design Explores the analysis of hydrogen interactions including reliably measuring hydrogen uptake in storage materials

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.

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.

Download or read book Nanomaterials for Hydrogen Storage Applications written by Fatih Şen and published by Elsevier. This book was released on 2020-09-09 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials for Hydrogen Storage Applications introduces nanomaterials and nanocomposites manufacturing and design for hydrogen storage applications. The book covers the manufacturing, design, characterization techniques and hydrogen storage applications of a range of nanomaterials. It outlines fundamental characterization techniques for nanocomposites to establish their suitability for hydrogen storage applications. Offering a sound knowledge of hydrogen storage application of nanocomposites, this book is an important resource for both materials scientists and engineers who are seeking to understand how nanomaterials can be used to create more efficient energy storage solutions. - Assesses the characterization, design, manufacture and application of different types of nanomaterials for hydrogen storage - Outlines the major challenges of using nanomaterials in hydrogen storage - Discusses how the use of nanotechnology is helping engineers create more effective hydrogen storage systems

Download or read book Hydrogen Storage Properties of Magnesium Base Nanostructured Composite Materials written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, nanostructured composite materials have been synthesized using the mechanical alloying process. The new materials produced have been investigated by X-ray diffraction (XRD), transition electron microscope (TEM), scanning electron microscope (SEM) and electron energy dispersion spectrum (EDS) for their phase compositions, crystal structure, grain size, particle morphology and the distribution of catalyst element. Hydrogen storage capacities and the hydriding-dehydriding kinetics of the new materials have been measured at different temperatures using a Sieverts apparatus. It is observed that mechanical alloying accelerates the hydrogenation kinetics of the magnesium based materials at low temperature, but a high temperature must be provided to release the absorbed hydrogen from the hydrided magnesium based materials. It is believed that the dehydriding temperature is largely controlled by the thermodynamic configuration of magnesium hydride. Doping Mg-Ni nano/amorphous composite materials with lanthanum reduces the hydriding and dehydriding temperature. Although the stability of MgH2 can not be easily reduced by ball milling alone, the results suggest the thermodynamic properties of Mg-Ni nano/amorphous composite materials can be alternated by additives such as La or other effective elements. Further investigation toward understanding the mechanism of additives will be rewarded.

Download or read book Kinetic Investigation of Metalcatalyzed Hydriding written by Efrat Ruse and published by . This book was released on 2018 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen has the capacity to provide green electric energy, supplied by the conversion of an electrochemical reaction (hydrogen and oxygen) in fuel cells. Due to hydrogen's flammability, its safe storage is essential. Solid-state storage in metal hydrides is indeed safe but fails to comply with the kinetic requirements for hydrogen storage and release, dictated by the U.S. Department of Energy for mobile applications. Composite materials, consisting of a metallic hydrogen acceptor matrix and nanocarbon additives (e.g., carbon nanotubes or graphene nanoplatelets) accelerate the kinetic hurdles. Carbonaceous nanomaterials possess unique structural and chemical properties: high surface area, low density and inertness to hydrogen at standard temperature and pressure (STP). These properties, as well as their recent decrease in price, make them ideal for use in mobile power devices. In this thesis, I suggest manipulating the hydrogen diffusion rate to the metallic acceptor (hydriding) and from it (dehydriding) by engineering the structural properties of the nanocarbon additives. I focus on the effect of nanocarbon structure on hydrogen storage kinetics in magnesium, which possesses a high hydrogen capacity (7.7 wt%). The first chapter of this thesis presents a correlation between nanocarbon dimensionality, namely 1D carbon nanotubes (CNT), 2D graphene nanoplatelets (GNP) and 3D activated carbon, on hydrogen storage kinetics in magnesium. Specifically, I explore the effects of nanocarbon defect density, size and surface area on the hydrogen diffusion rate to and from the magnesium matrix. Integrating the hydriding and dehydriding kinetics into a single rate variable yields an optimum kinetics for CNT additives (high aspect ratio), compared to other previously reported studies. These results suggest that the nanocarbon structure has a key role in the kinetic enhancement. Therefore, in the second part of this thesis, I designed the production of GNP (as a case study) to manipulate their structural properties for hydrogen storage applications. Here, I studied the mechanism of GNP integration in the magnesium matrix and demonstrated the critical effect of their size on accelerating the kinetic performances. The coherent structure-function correlation obtained could open a new avenue in the design of composite materials for hydrogen storage devices. - abstract.

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.

Download or read book Bimetallic Catalysts written by John H. Sinfelt and published by Wiley-Interscience. This book was released on 1983-09-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents an account of the research on bimetallic catalysts. Focuses attention on the possibility of influencing the selectivity of chemical transformations on metal surfaces and preparing metal alloys in a highly dispersed state. Covers the validation and elucidation of the bimetallic cluster concept. Includes figures and tables.

Download or read book Hydrogen Technology written by Aline Léon and published by Springer Science & Business Media. This book was released on 2008-07-18 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aline Leon ́ In the last years, public attention was increasingly shifted by the media and world governmentsto the conceptsof saving energy,reducingpollution,protectingthe - vironment, and developing long-term energy supply solutions. In parallel, research funding relating to alternative fuels and energy carriers is increasing on both - tional and international levels. Why has future energy supply become such a matter of concern? The reasons are the problems created by the world’s current energy supply s- tem which is mainly based on fossil fuels. In fact, the energystored in hydrocarb- based solid, liquid, and gaseous fuels was, is, and will be widely consumed for internal combustion engine-based transportation, for electricity and heat generation in residential and industrial sectors, and for the production of fertilizers in agric- ture, as it is convenient, abundant, and cheap. However, such a widespread use of fossil fuels by a constantly growing world population (from 2. 3 billion in 1939 to 6. 5 billion in 2006) gives rise to the two problems of oil supply and environmental degradation. The problemrelated to oil supply is caused by the fact that fossil fuels are not - newable primary energy sources: This means that since the rst barrel of petroleum has been pumped out from the ground, we have been exhausting a heritage given by nature.

Download or read book Mechano chemical synthesis and characterisation of complex hydrides for solid state hydrogen storage written by Carine Rongeat and published by Cuvillier Verlag. This book was released on 2011-02-25 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen storage technologies are gaining interest for the development of new sustainable energy carriers instead of fossil fuel and for reducing the release of greenhouse gases. Solid state hydrogen storage in hydrides offers a good alternative for an efficient storage. In particular for mobile applications, a high gravimetric and volumetric storage capacity is necessary. These requirements have triggered a lot of interest for complex hydrides (metal alanates M(AlH4)x or borohydrides M(BH4)x). Here, reactive ball milling under hydrogen pressure has been developed for the synthesis of complex hydrides from their decomposition products. Two different kind of complex hydrides were selected: NaAlH4 as a model system and Ca(BH4)2 for its high hydrogen capacity. Sodium alanate NaAlH4 can store practically ca. 4wt% of hydrogen in the 100-150°C temperature range but this can be achieved only when adding a dopant to NaAlH4. In this work, different metal and metal chloride dopants for NaAlH4 are studied. The comparison of these dopants is used to better understand the catalytic and reaction mechanisms. Nevertheless, despite its good reversibility, NaAlH4 cannot be considered for mobile application because of its limited hydrogen capacity. Therefore, metal borohydrides have been considered more recently due to their high gravimetric and volumetric stored hydrogen densities. Among them, Ca(BH4)2 (11.5wt% H2) is interesting because of the predicted suitable thermodynamic properties. A new synthesis route has been investigated, using reactive ball milling of CaH2 and CaB6 under high hydrogen pressure (max 150 bar). The reversible decomposition/formation of Ca(BH4)2 was observed (60% yield) during cycling and was obtained using TiF3 as additive but cannot be achieved with TiCl3 as additive. The understanding of the difference observed when using these two additives is of crucial importance to further improve the kinetics of H2 sorption and the use of Ca(BH4)2 for hydrogen storage.

Download or read book 18th World Hydrogen Energy Conference 2010 WHEC 2010 written by Detlef Stolten and published by Forschungszentrum Jülich. This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tailoring the Kinetic Behavior of Hydride Forming Materials for Hydrogen Storage written by Juli√°n Puszkiel and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydride forming materials, i.e., binary, complex hydrides, and their mixtures, have been extensively investigated owing to their potential hydrogen storage properties. They possess high volumetric hydrogen capacity and relative high gravimetric hydrogen capacity. However, one of the main constraints for their practical application is their slow kinetic behavior. For this reason, enormous effort has been devoted to improve the hydrogenation and dehydrogenation rates. Several strategies have been developed for the enhancement of the kinetic behavior of the most relevant hydride forming materials such as MgH2, MBH4 (M¬†=¬†Li, Ca, Mg, Na, K), MNH2 (M¬†=¬†Li and Mg), MBH4¬†+¬†,ÄòMH2 (M¬†=¬†Li, Ca, Mg; ,ÄòM¬†=¬†Li, Mg, Ca), and MNH2¬†+¬†,ÄòMH2 (M¬†=¬†Li, Mg; ,ÄòM¬†=¬†Li). Tuning the kinetic behavior of these hydride forming materials involves different approaches and their combinations. The most relevant approaches are: (1) improving the microstructural refinement via mechanical milling, (2) doping with transition metal and transition metal compounds, (3) forming in situ catalyst, and (4) nanoconfining doped hydride forming materials. Herein, basic concepts about the chemical reaction for the hydride compound formation/decomposition, thermodynamics, kinetics, and applied strategies to enhance the kinetic behavior of hydride compounds and systems are comprehensively described and discussed.