The experimental lattice parameter (aexp) was decreased with increasing Zn2+ ions substitution due to the smaller ionic radius of zinc content. The crystallite size (t) of samples was estimated by Scherrer's formula and found in the range (90 - 115 nm). Dc electrical resistivity and Seebeck...
According to previous reports, Zn2+ prefers to substitutionally dope RuO2 at Ru4+ sites30,48, which is readily understood by the similar ionic radius of Ru4+ (0.62 Å) and Zn2+ (0.60 Å)49. Zn-doped RuO2 retains the rutile structure of pristine RuO248, with negligible ...
According to previous reports, Zn2+ prefers to substitutionally dope RuO2 at Ru4+ sites30,48, which is readily understood by the similar ionic radius of Ru4+ (0.62 Å) and Zn2+ (0.60 Å)49. Zn-doped RuO2 retains the rutile structure of pristine RuO248, with negligible shift in ...
Nevertheless, despite Zn2+ possessing a relatively smaller ionic radius (0.74 Å), its divalent nature, large atomic mass, and robust polarization induce the inevitable electrostatic adsorption with host materials, leading to low structural stability and sluggish Zn2+ diffusion [13], [14], [15]...
The lattice parameters increase with the increase of Znadditional amount, attributed to the larger ionic radius of the substituted ion Znthan Cuionic radius. Znsubstitution can improve the magnetic properties of CoCuZnFeO. CoCuZnFeOobtained at 800°C has the highest specific saturation magnetization ...
2c). This is due to the substitution of Zn2+ (ionic radius 0.74 Å) [22] with bigger Pb2+ (ionic radius 1.01–1.40 Å) [24] ions. In general, it is assumed that when a cation is replaced by other larger, the result is an expansion of the lattice and therefore both the ...
cause th e ionic radius of Co f0. 072 nm) is similar to radius of Zn (0.074 nm).Furtherm ore,Co may OCCupy th e Zn”site, since charg e compensation w as v er y easy in this case .0 . 3% 154 Acta Phys.一Chim.Sin.2013 ...
Lattice parameter was determined to increments with Li+1 and that may occur due to the larger ionic radius of the Li1+ ion. FTIR spectroscopy confirmed the form of spinel ferrite and explicated the properties of absorption bands approximately 593, 1111, 1385, 1640, 2922 and 3430. The energy...
A preferred incorporation of Ba2+ into the structure is not assumed because of the much higher ionic radius in comparison to Sr2+. The crystal structure information as well as the refinement parameters are summarized in Table 1. Silicon as well dobasnyraze5iaSnoricexOayb4rgretieednftogrseua...
b Charge density was calculated according to the formula 2e/(4/3)πr3, where r is the ionic radius and e is 1.602 × 10−19 C. c Enthalpy of hydration taken from [73]. We tested this possibility by determining Erev and G from current-voltage relationships when the membrane voltage ...