The correlation between crystal facets and electronic configurations of perovskite is closely related to the intrinsic activity for water splitting. Herein, we proposed a unique molten-salt method (MSM) manipulate properties LaCoO3 by fine-tuning its facet atomic doping. samples with oriented (110) (LCO (110)) (111) (111)) were motivated capping agent (Sr2+). Compared LCO plane, Sr-doped (LSCO ...

The doped perovskite cobaltite La1−xSrxCoO3 LSCO has been advanced as a model system for studying intrinsic magnetic phase separation. We have employed a first-order reversal curve FORC method to probe the amount of irreversible switching in bulk polycrystalline LSCO as a function of Sr doping, field cooling procedure, and temperature. The value of the FORC distribution is used as a measure of ...

Studies of La0.7Ca0.3MnO3 epitaxial films on substrates with a range of lattice constants reveal two dominant contributions to the occurrence of colossal negative magnetoresistance (CMR) in these manganites: at high temperatures (T → TC , TC being the Curie temperature), the magnetotransport properties are predominantly determined by the conduction of lattice polarons, while at low temperatures...

The solid-state compatibility between calcium-doped lanthanum niobate and three perovskite cathode materials was investigated using two X-ray microbeam techniques, micro fluorescence absorption spectroscopy. powders (lanthanum strontium ferrite, either cobalt or copper-doped, cobaltite) in contact with the dense electrolyte pellet were annealed at 1150°C for 12–144 h to simulate effect of therm...

Owing to their excellent mixed-ionic and electronic conductivity, fast oxygen kinetics, cost efficiency, layered oxygen-deficient perovskite oxides hold great potential as highly efficient cathodes for solid oxide fuel cells anodes water oxidation. Under working conditions, cation ordering is believed substantially enhance diffusion while maintaining structural stability owing the formation of ...

Samples of nickel cobaltite, a mixed oxide occurring in the spinel structure which is currently extensively investigated because of its prospective application as ferromagnetic, electrocatalytic, and cost-effective energy storage material were prepared in the form of nanocrystals stabilized in a highly porous silica aerogel and as unsupported nanoparticles. Nickel cobaltite nanocrystals with av...

Thermal transistors that electrically control heat flow have attracted growing attention as thermal management devices and phonon logic circuits. Although several are demonstrated, the use of liquid electrolytes may limit application from viewpoint reliability or leakage. Herein, a solid-state transistor can electrochemically with an on-to-off ratio conductivity (κ) ≈4 without using any is demo...