Evaluation of nano-crystal sized α-nickel hydroxide as an electrode material for alkaline rechargeable cells

A study on the effect of nanosized tin oxide on the electrochemical performance of nanosized nickel hydroxide in alkali solution

“…This implies that the outer surface of the composite mixture is covered by the SnO 2 and after mixing of SnO 2 nanopowder with -Ni(OH) 2 nanopowder by sonication method, a little change in the disorder turbostatic phase of -Ni(OH) 2 to ordered -Ni(OH) 2 layered structure is indicated by the formation of diffraction peaks (1 0 1), (1 0 2) and (1 1 1). This implies that a small amount of -Ni(OH) 2 could be formed after sonication treatment of the composite mixture in ethanol, which is in agreement with the structural disorder change of the Ni(OH) 2 with the preparation methods and the metal ion dopings are observed in the literature studies [22][23][24]. Figure 2(a) shows the TEM images of SnO 2 spherical nanoparticles dispersed evenly with 10-15 nm size.…”

Mn-substituted nickel hydroxide prepared by ball milling and its electrochemical properties

“…7 show that 100 • C is the best drying temperature. As the crystal water in nickel hydroxide may play an important role to improve its capacity performance [13], too high drying temperature (>100 • C) results in a capacity decrease.…”

Synthesis and electrochemical performance of α-nickel hydroxide codoped with Al3+ and Ca2+

“…6. It is well known that the electrochemical reaction process of nickel hydroxide electrode is limited by proton diffusion through the lattice [17,18]. Therefore, it is of great importance to study the proton diffusion coefficient of the nickel electrodes.…”