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Improved Hydrogen Sorption Kinetics In Wet Ball Milled Mg Hydrides
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Book Synopsis Improved Hydrogen Sorption Kinetics in Wet Ball Milled Mg Hydrides by : Li Meng
Download or read book Improved Hydrogen Sorption Kinetics in Wet Ball Milled Mg Hydrides written by Li Meng and published by Forschungszentrum Jülich. This book was released on 2011 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 18th World Hydrogen Energy Conference 2010 - WHEC 2010 by : Detlef Stolten
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:
Book Synopsis Development of Thermal Spray Processes with Liquid Feedstocks by : Alexandre Guignard
Download or read book Development of Thermal Spray Processes with Liquid Feedstocks written by Alexandre Guignard and published by Forschungszentrum Jülich. This book was released on 2012 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Amorphous and Microcrystalline Silicon Applied in Very Thin Tandem Solar Cells by : Sandra Schicho
Download or read book Amorphous and Microcrystalline Silicon Applied in Very Thin Tandem Solar Cells written by Sandra Schicho and published by Forschungszentrum Jülich. This book was released on 2011 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of the 2-component-injection Moulding for Metal Powders by : Ana Paula Cysne Barbosa
Download or read book Development of the 2-component-injection Moulding for Metal Powders written by Ana Paula Cysne Barbosa and published by Forschungszentrum Jülich. This book was released on 2011 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Processes in the Yangtze River System by : Stephan Küppers
Download or read book Processes in the Yangtze River System written by Stephan Küppers and published by Forschungszentrum Jülich. This book was released on 2011 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Thin Film Oxygen Transport Membranes on Metallic Supports by : Ye Xing
Download or read book Development of Thin Film Oxygen Transport Membranes on Metallic Supports written by Ye Xing and published by Forschungszentrum Jülich. This book was released on 2012 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth, Etching, and Stability of Sputtered ZnO:AI for Thin-film Silicon Solar Cells by : Jorj Ian Owen
Download or read book Growth, Etching, and Stability of Sputtered ZnO:AI for Thin-film Silicon Solar Cells written by Jorj Ian Owen and published by Forschungszentrum Jülich. This book was released on 2011 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of Different Vertical Transport Representations on Simulating Processes in the Tropical Tropopause Layer (TTL) by : Felix Plöger
Download or read book Impact of Different Vertical Transport Representations on Simulating Processes in the Tropical Tropopause Layer (TTL) written by Felix Plöger and published by Forschungszentrum Jülich. This book was released on 2011 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermo-mechanical Properties of Mixed Ion Electron Conducting Membrane Materials by : Bingxin Huang
Download or read book Thermo-mechanical Properties of Mixed Ion Electron Conducting Membrane Materials written by Bingxin Huang and published by Forschungszentrum Jülich. This book was released on 2012 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tomographic Reconstruction of Atmospheric Volumes from Infrared Limb-imager Measurements by : Jörn Ungermann
Download or read book Tomographic Reconstruction of Atmospheric Volumes from Infrared Limb-imager Measurements written by Jörn Ungermann and published by Forschungszentrum Jülich. This book was released on 2011 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improvement of Hydrogen Release Process in Utilization of Magnesium Hydride as a Hydrogen Carrier for Energy Storage Goals by : Emanuel Markman
Download or read book Improvement of Hydrogen Release Process in Utilization of Magnesium Hydride as a Hydrogen Carrier for Energy Storage Goals written by Emanuel Markman and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study the hydrogen release from various magnesium hydride ball milled composites was studied in order to improve the slow kinetics and poor yields of the original hydride. MgH2 reaction with water (hydrolysis), was explored using a gas burette which measures the hydrogen release. Thermal degradation process (thermolysis) was quantified using DSC and STA as well as ISORB-HP (Sievert's apparatus) which measures the pressure of the gas releasing in the heating process and converts it to moles per unit of mass. It was found that surfactant additives minimize air oxidation by forming a protective layer on the surface of the particles during milling which in turn lowers the dehydrogenation temperature of the composites and increases the yield of hydrolysis. Dehydrated inorganic salt additives have also improved the efficiency of hydrogen release in hydrolysis. -- From the Abstract.
Book Synopsis Hydrogen Storage Properties of Magnesium Hydride by : Abbas Ranjbar
Download or read book Hydrogen Storage Properties of Magnesium Hydride written by Abbas Ranjbar and published by LAP Lambert Academic Publishing. This book was released on 2011-07-01 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crude oil, natural gas, and coal are the main sources of energy supply in our daily lives, particularly in transportation. As the world's energy demand is increasing significantly, environmental friendly energy sources, such as solar and wind energy, are essential and hydrogen is the best energy carrier for these kinds of energy sources. However, hydrogen must be stored in the required methods and materials which have been specified by the US Department of Energy and magnesium is one of the most promising candidates for hydrogen storage. The object of this book is enhancement of the hydrogen storage properties of MgH2 using different kinds of catalysts and ball-milling methods. Preparing binary composites such as MgH2-SiC and MgH2-BCC nano-composites and also ternary samples such as MgH2-SiC-Ni and MgH2-BCC-CNT specimen by both planetary and magneto ball milling have shown significant improvements in hydrogen sorption properties of MgH2. The methods and results in this book could help shed some light on the area of hydrogen economy and would be useful for post graduate and graduated students in this area, experimental physicists, and material scientists
Book Synopsis Hydrogen Desorption and Absorption for Activated Magnesium Hydride by :
Download or read book Hydrogen Desorption and Absorption for Activated Magnesium Hydride written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction between MgH2 and LiBH4 was studied to determine the resultant effects on hydrogen desorption and absorption kinetics for potential use as a hydrogen storage material. It is found that the addition of LiBH4 in small molar ratios results in improved kinetics of the same order as those observed for mechanically milled magnesium. The mixture of MgH2 + LiBH4 in ratios at and below 4:1, once reacted, is a highly reversible material at 300°C and it is observed that the kinetics improve upon the process of hydrogen cycling. This improvement is partially attributed to a refinement in microstructure that results in highly porous particle agglomerates and it is this feature that is likely to have a large effect on the kinetics of hydrogenation due to the rate limiting step of the reaction being hydrogen diffusion into the particles of Mg which can be coated in MgH2 phase, through which H2 does not diffuse easily. Additionally it is observed via Raman spectroscopy that a new bonding structure exists in the H2 cycled mixture after desorption which might improve the rehydrogenation of the sample and reduce the enthalpy of decomposition through an intermediate reaction pathway.
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 Technologies by : Agata Godula-Jopek
Download or read book Hydrogen Storage Technologies written by Agata Godula-Jopek and published by John Wiley & Sons. This book was released on 2012-07-05 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exploration of current and possible future hydrogen storage technologies, written from an industrial perspective. The book describes the fundamentals, taking into consideration environmental, economic and safety aspects, as well as presenting infrastructure requirements, with a special focus on hydrogen applications in production, transportation, military, stationary and mobile storage. A comparison of the different storage technologies is also included, ranging from storage of pure hydrogen in different states, via chemical storage right up to new materials already under development. Throughout, emphasis is placed on those technologies with the potential for commercialization.
Book Synopsis Kinetics of Binary Metal Hydride Decomposition by : Igor E. Gabis
Download or read book Kinetics of Binary Metal Hydride Decomposition written by Igor E. Gabis and published by Nova Science Publishers. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the point of view of hydrogen, desorption metal hydrides are extremely complex and interesting. Various metal hydrides differ so much, range in terms of decomposition temperatures and pressures and look like materials from separate classes. Many research articles are devoted to metal hydrides; many of them study the kinetics of dehydriding. However, there is still no complete understanding of the processes that govern kinetics. The reason is for the high number of factors that influence the rate of hydride decomposition and hydrogen desorption. First of all, properties of metal hydrides are diverse. The number of hydride phases, decomposition rates and ranges of absorbed energy are very different. The rates of hydrogen desorption, diffusion and phase transition also can influence the kinetics of dehydriding. The aim of this book is to summarise the authors research of dehydriding kinetics with electronic structures of the materials taken into account, and to determine which elementary processes influence the decomposition rates. The book is not a reference guide on the dehydriding rates of constants. Even more so, in order to keep the subject as simple as possible, the authors restrict the discussion only to binary hydrides when talking about basic dehydriding laws. It is possible, however, that ternary and more complex hydrides have their own unique properties. The authors describe experimental results through physically clear and well studied processes, such as desorption, diffusion, reaction of hydride decomposition, etc. as well as by using conservation laws. On the other hand, describing the entire process in the most general way, taking into account all of the possible reactions and excluding some on the grounds of experimental results, also seems unsound. The authors believe that complexity of models must be comparable to that of experimental data; additional factors should be taken into account only in order to improve poor fitting. The following factors seem the most important: Electronic properties of the hydride (type of bonding); phase morphology; incubation and nucleation; physically reasonable elementary processes mentioned above (diffusion, adsorption and desorption, decomposition and formation of the hydride phase, etc.); and the variety of powder particles. Over recent years, much effort has been made to activate the decomposition of magnesium and aluminium hydrides with the hope of finding appropriate materials for keeping hydrogen in solids aboard a vehicle. Most of the research dealt with mechanochemical activation (ie: ball milling in the presence of catalysts, often in hydrogen). The choice of catalytic materials is not always logical; this was one more reason for systemising the dehydriding kinetics. Naturally, activated materials must follow the general pattern of decomposing metal hydrides. A separate section is devoted to the activation of magnesium and aluminium hydrides; aside from mechanochemical, we also discuss the thermal and photoactivation of these materials.