The Cu doped NiO (NiO:Cu) nanoparticles were synthesized by co-precipitation method using NiCl2.6H2O, CuCl2.2H2O for Ni and Cu sources, respectively. Sodium hydroxide has been used as a precipitator agent. Effect of Cu doping agent on the structural and optical properties of nanostructures were characterized by XRD, SEM, AFM, spectrophotometry, FTIR a...

Kaub, T., Felfer, P., Cairney, J., Thompson, G. (2016). Influence of Ni Solute segregation on the intrinsic growth stresses in Cu(Ni) thin films. Scripta Materialia, 113, 131-134. [Mor e Information] He, M., Samudrala, S., Kim, G., Felfer, P., Breen, A., Cairney, J., Gianola, D. (2016). Linking stress-driven microstructural evolut...

A series of Sn1-xNixO2 films were fabricated by sol-gel method. All samples have pure rutile structure and exhibit room temperature ferromagnetism (RTFM). Magnetic moment per Ni ion decreases with the increase of Ni doping because antiferromagnetic super-exchange interaction takes place in the nearest neighbour Ni ions for the samples with high x. The results of the annealing at oxidizing and r...

Ab initio calculations are used to predict that a superlattice composed of layers of LaTiO3 and LaNiO3 alternating along the [001] direction is a S=1 Mott insulator with large magnetic moments on the Ni sites, negligible moments on the Ti sites and a charge transfer gap set by the energy difference between Ni d and Ti d states, distinct from conventional Mott insulators. Correlation effects are...

Active yet low-cost electrocatalysts for water oxidation are crucial the development of hydrogen energy economy. The Fe doping into Ni(OH)2 dramatically enhances catalytic activity toward oxygen evolution reaction (OER) but fabricating high loading is still challenging. Herein, we report a one-pot strategy to prepare disordered ?-Ni(OH)2 nanosheets with level (9.9 at%, D-Fe-Ni(OH)2). By engagin...

AbstractSputtered MoS2 coatings have been mostly used as a solid lubricant. In this investigation, MoSx/Ni composite coatings with Ni contents varying from 0 to 22 % were deposited onto steel substrate using a DC magnetron sputter process. The MoS2/Ni ratio in the coatings was controlled by sputtering the composite targets. The composition, microstructure, and mechanical properties of the...

Ceramics Li0.98-xTa1.004-x/5NixO3 (LTN) samples have been prepared, for x∈ { } 0;0.01;0.02;0.05;0.08;0.15;0.2 . Ac impedance measurements were carried out in the frequency range 1Hz-1MHz and from 300°C to 900°C. The influence of Ni doping on dc conductivity was depicted. Through the ac impedance, dielectric constant was deduced and two dielectric relaxations have been clearly identified at high...

Incorporation of doping ions in nanocrystals is a strategy for providing nanophases with functions directly related to ion features. At the nanoscale, however, doping can also activate more complex effects mediated by perturbation of the nanophase size and structure. Here, we report a paradigmatic case in which we modify grown-in-glass γ-Ga2 O3 nanophases by nickel or titanium doping of the sta...