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J. Cent. South Univ. (2017) 24: 773-781 DOI: 10.1007/s11771-017-3479-8 Gaseous hydrogen storage thermodynamics and kinetics of RE–Mg–Ni-based alloys prepared by mechanical milling ZHANG Yang-huan(张羊... clearly affects the hydrogen storage properties of the alloys. All the as-milled alloys show so fast hydrogen absorption rate that the absorbed amount in 10 min reaches to at least more than 95......
Study on Diffusion of Hydrogen in AB5 Non-Stoichiometric Hydrogen Absorbing Alloys 彭文杰1,王志兴1,陈启元1,李新海1,郭华军1 (1.Department of Metallurgical Physico-Chemistry, School of Metallurgical Science..., the diffusion coefficient increases with the partial substitution of manganese or aluminum for nickel, which is related to the lattice constant and cell volumes of hydrogen absorbing alloys......
: Mg2Ni-type alloy; Nd addition; melt spinning; nanocrystalline and amorphous alloy; hydrogen storage kinetics 1 Introduction Hydrogen storage is one of the important components of hydrogen economy.../ dehydriding kinetics as hydrogen storage materials of on-board use. In spite of facing enormous challenges, the researchers in this field still persist in the firm confidence to improve the properties......
Application of Nanocrystalline LaNi5-type Hydrogen Absorbing Alloys in Ni-MHx Batteries Jurczyk M1,Nowak M1 (1.Institute of Materials Science and Engineering,Poznan University of Technology,60-965... of a nanocrystalline LaNi5-type hydride electrodes and a nickel positive electrode to form a Ni-MH battery, was successful. Key words:hydrogen absorbing materials; electrode materials; nanocrystalline materials......
Numerical analysis of temperature rise within 70 MPa composite hydrogen vehicle cylinder during fast refuelingWANG Liang(王亮)1, ZHENG Chuan-xiang(郑传祥)1, LI Rong(李蓉)1, CHEN Bing-bing(陈冰冰)2, WEI Zong... of Technology, Hangzhou 310032, China)Abstract:The numerical simulation model for predicting fast filling process of 70 MPa type III (with metal liner) hydrogen vehicle cylinder was presented, which has......
absorption capacity and kinetics of the as-cast and as-quenched Cu2 and Cu4 alloys. It can be seen that all hydriding kinetic curves of the as-quenched alloys show an initial fast hydrogen absorption stage... kinetics of Mg-based alloys has been one of the main challenges faced by researchers in this area. Various attempts, involving mechanical alloying (MA)[3], GPa hydrogen pressure method[4], melt spinning......
by an automatically controlled Sieverts apparatus. Prior to measuring the hydriding and dehydriding kinetics of the alloys, several hydrogen absorbing and desorbing cycles were carried out in order that the alloy can.... The hydrogen absorption kinetic curves of the as-cast and spun Mn0 and Mn0.3 alloys are depicted in Fig.5. It is evident that the hydrogen absorption kinetics is extremely fast so that the alloys absorbed......
J. Cent. South Univ. Technol. (2009) 16: 0588-0593 DOI: 10.1007/s11771-009-0098-z Microwave absorbing properties of high titanium slag ZHANG Li-bo(张利波), CHEN Guo(陈菓), PENG Jin-hui(彭金辉), CHEN...; Abstract: Microwave absorbing properties of high......
that with increasing x value the equilibrium pressure, hydrogen-absorbing ability and hysteresis decrease, whereas the absolute value of the enthalpy increases. It is also found that the hydrogen absorbing velocity of the alloys decreases with increasing x value. Key words: hydrogen storage; LaNi5-xAlx alloy; kinetics property; thermodynamics property; crystal lattice parameter 1 Introduction......
