Electrochemical characteristics of Mg2Ni-type alloys prepared by mechanical alloying

Electrochemical properties of nanocrystalline Mg2Ni-type alloys prepared by mechanical alloying

“…Their slow hydriding/dehydriding kinetics at room temperature and rapid degradation in alkaline solution and therefore relatively low discharge capacity limit their practical application as anode materials (MH) in a rechargeable battery. Mechanical milling (MM) and mechanical alloying (MA) were shown to be very effective ways to increase the hydrogen discharge capacity as well as to improve the characteristics of a negative MH electrode [1,2], modifying the microstructure and the surface of the material. The improved properties are mainly explained by the appropriate nano-/amorphous microstructure, which facilitates the hydrogen diffusion process and the charge transfer reaction and leads to high elec- * Corresponding author.…”

“…Alloying (e.g. partial substitution of Al, V, Zr and Ti for Mg) is another approach to improve the electrode characteristics of ball-milled Mg-Ni alloys [2][3][4][5][6][7].…”

“…Although a number of studies on the electrode characteristics of mechanically alloyed Mg 2 Ni-based alloys have been already reported [1][2][3][5][6][7][8][9][10][11][12], the results are very often inconsistent and the influence of the microstructure on the electrochemical properties is not thoroughly investigated.…”

Influence of Mg3AlNi2 content on the cycling stability of Mg2Ni–Mg3AlNi2 hydrogen storage alloy electrodes

“…To date, all of these investigations have concentrated only on improving the discharge capacity of Mg 2 Ni alloy through the substitution of Al for Mg [4,7,9]. There seems to have been only a few publications on the capacity retardation rate of Mg 2 Ni-based alloys with the appropriate Al content [17,18].…”

Еlectrochemical hydriding/dehydriding of nanocrystalline Mg2−x Sn x Ni (x = 0, 0.1, 0.3)

“…Mg 2 Ni-based alloys and composites are among the most studied magnesium materials for hydrogen storage [1][2][3][4][5][6][7]. The hydriding properties of Mg 2 Ni based alloys depend on the microstructure and the type and amount of the alloying elements.…”