[PDF] Top 20 (La1.66Mg0.34)Ni7-based alloys : Structural and Hydrogen Storage Properties

... High hydrogen capacity, moderate hydrogen equilibrium pressure as well as light and less expensive elements makes them remarkable from an economical point of ...unknown structural properties ... See full document

... on hydrogen storage, structural and optical properties in multi-layered Pd/Mg thin ...that hydrogen of ∼ 5 mass% absorbs at 373 K in Mg under a hydrogen pressure of ...the ... See full document

... highest structural order within the sample, dually supported by the ability of the pores to be clogged by atmospheric species and also their approximate line-shapes in Figure ...the properties of a properly ... See full document

... for hydrogen storage properties was associated with combined processing of melt- spinning (MS) followed by cold rolling that is, cold rolling of an already refined ... See full document

... materials for use as anodes in Ni-MH batteries because of their low cost and availability [4-7], and they exhibit long cycle life and superior performance compared to other competing materials [8-12]. Meanwhile, on the ... See full document

... 2011) based on the hexagonal unit cell. The hydrogen was attached externally with each carbon atom and the length of the C-H bond is ...is based on the assumption that all carbon atoms in a nanotube ... See full document

... suitable hydrogen storage alloys for a metal hydride (MH) actuator in rehabilitation devices were ...these alloys to reduce not only the material cost but also the hysteresis factor leading to ... See full document

... using hydrogen treat energy, metal–hydrogen systems are considered to have a prospective future for applications because of their characteristics of reversible absorbing / desorbing of hydrogen under ... See full document

... Unfortunately, the applications of this kind of materials are marred by their poor sorption/desorption kinetics and high dissociation temperature. Therefore, during the re- cent years, the main focus of research in this ... See full document

... of hydrogen absorption and desorption is too high and also the hydrogenation-dehydrogenation kinetics is not ...Mg- based hydrogen storage alloys have been successfully prepared by ... See full document

... the hydrogen content and crystal structure of phase and two hydrides ( phase and phase), each specimen was prepared using Sievert’s apparatus, as described ...the hydrogen content just below the level at ... See full document

... the hydrogen atoms enter/ release from the alloy lattices until the lattices become large enough for suitable hydrogen atom ...and hydrogen be released completely from the alloy ...complete ... See full document

... of hydrogen in electrochemical reaction thanks to the release of hydrogen from the alloy electrodes and reduced reversible capacity at elevated ...phase hydrogen storage capacity reduces at ... See full document

... With the increasing demand for new energy, Nickel/metal hydride (Ni/MH) batteries have been widely studied and used, because they have many advantages, such as high capacity, good over charge/discharge resistance, ... See full document

... In present work, we have used quasi-lattice model and calculated the pair wise interaction energy for MgSn liquid alloy at 1073 K. These were used to estimate the thermodynamic properties and concentration ... See full document

... Mechanical properties such as Ultimate tensile strength, percent elongation, impact strength, hardness and also micro structural features of ZA25 containing 0-3%wt copper and ...The alloys were ... See full document

... = 0.20). It is well known that the decay of capacity is ascribed to the pulverization and corrosion of the alloy electrode during the charging/discharging cycles [27], as well as to the decrease of the electrochemical ... See full document

... equilibrium hydrogen pressure at ...The hydrogen pressure at permeation side is fixed to be ...normalized hydrogen fl ux, J · L for V-5 mol % Fe is much higher than that for V-5 mol % W or V-5 mol % ... See full document

... physical properties in exposure to different ...Metal-oxide based sensors have become more prominent since the second half of the 20th century, and are also known by other names such as chemo-resistive ... See full document

... During hot deformation the average dislocation density of the material increases several orders of magnitude. Two metallurgical processes become active to reduce the dislocation excess: recovery and recrystallization. In ... See full document