Nanoscopic oxygen control of functional oxide nanoparticles by electro-chemical route at ambient temperature.

ABSTRACT: La_0.67Ca_0.33MnO_δ nanoparticles of approximate size ∼ 4 nm have been prepared by the chemical solution deposition method to investigate effect of oxygen stoichiometry in the nanoparticles without changing their sizes. Electrochemical oxidation method has been used to change the oxygen stoichiometry [Formula: see text] at room temperature, which unlike conventional methods to change oxygen stoichiometry by heating in controlled ambience, does not lead to any significant change in size. This has allowed us to investigate the effects of stoichiometry variations in the nanoparticles with no change in size. The unit cell volume, lattice constants and orthorhombic strains of the as prepared sample (with [Formula: see text] = 2.74) are changed by incorporation of o

SUBMITTER: Malla Chowdhury P 

PROVIDER: S-EPMC10853112 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature