Nov 5, 2022 · We report two-dimensional correlation spectroscopy (2D-COS) analyses of the Raman spectra of NiO nanoparticles over a temperature range from 100 to 300 K. 2D-Raman …

Jul 16, 2020 · The magnetic-order induced effects in nanocrystalline NiO are investigated through the phonons and magnons observed in the Raman spectra.

Nov 20, 2020 · In situ raman shows that Ni/NiO maintains Ni (OH) 2 species initially during HER. Nickel/Nickel oxide (Ni/NiO) nanosheets heterostructure is a cheap and active catalyst for …

Dec 22, 2017 · The use of the second-order phonon scattering and ultraviolet laser excitation (λ = 325 nm) was essential for overcoming the problem of the optical selection rules and …

In this study, pure nickel oxide (NiO), manganese ferrite (MnFe2O4 or MFO), and binary nickel oxide/manganese ferrite (NiO/MFO1–4) nanocomposites (NCs) were synthesized using the …

In this work, the Rh-based catalyst with Ce as promoter and ZrO 2 as carrier exhibits excellent catalytic performance, showing the selectivity of ethanol toward 24.3 %. Moreover, the yield of...

Magnetic ordering in nanosized (100 and 1500 nm) nickel oxide NiO powders, prepared by the plasma synthesis method, was studied using Raman scattering spectroscopy in a wide range …

Raman spectra were collected using a Renishaw “inVia” confocal microscope, with a 325 nm UV laser in the backscattering configuration. The surface roughness was estimated using atomic …

Raman spectroscopy is utilized to study the magnetic characteristics of heteroepitaxial NiO thin films grown by plasma-assisted molecular beam epitaxy on MgO(100) substrates.

NiO is antiferromagnetically ordered below its Néel tem-perature (T N) of 523 K, with the ordering arising out of alternating ferromagnetically aligned (111) planes that are antiferromagnetically …