biostudies-literatureUnknownAalling-Frederiksen OCarlsbergfondetDanmarks GrundforskningsfondEuropean Research CouncilDeutsche ForschungsgemeinschaftVillum FondenWe here investigate how the synthesis method affects the crystallite size and atomic structure of cobalt iron oxide nanoparticles. By using a simple solvothermal method, we first synthesized cobalt ferrite nanoparticles of <i>ca.</i> 2 and 7 nm, characterized by Transmission Electron Microscopy (TEM), Small Angle X-ray scattering (SAXS), X-ray and neutron total scattering. The smallest particle size corresponds to only a few spinel unit cells. Nevertheless, Pair Distribution Function (PDF) analysis of X-ray and neutron total scattering data shows that the atomic structure, even in the smallest nanoparticles, is well described by the spinel structure, although with significant disorder and a contraction of the unit cell parameter. These effects can be explained by the surface oxidation of tNanoscale advanceshttps://www.ebi.ac.uk/biostudies/studies/S-EPMC11443383biostudies-literatureEffect of solvothermal synthesis parameters on the crystallite size and atomic structure of cobalt iron oxide nanoparticles.PMC11443383408076438804066VKR00015416DNRF 149818941CF21-0278Anker ASFrandsen BAKlemeyer LPittkowski RKJensen KMOAalling-Frederiksen OKoziej DQuinson JfalseEffect of solvothermal synthesis parameters on the crystallite size and atomic structure of cobalt iron oxide nanoparticles.We here investigate how the synthesis method affects the crystallite size and atomic structure of cobalt iron oxide nanoparticles. By using a simple solvothermal method, we first synthesized cobalt ferrite nanoparticles of <i>ca.</i> 2 and 7 nm, characterized by Transmission Electron Microscopy (TEM), Small Angle X-ray scattering (SAXS), X-ray and neutron total scattering. The smallest particle size corresponds to only a few spinel unit cells. Nevertheless, Pair Distribution Function (PDF) analysis of X-ray and neutron total scattering data shows that the atomic structure, even in the smallest nanoparticles, is well described by the spinel structure, although with significant disorder and a contraction of the unit cell parameter. These effects can be explained by the surface oxidation of t2024-01-01T00:00:00Z2024 Sep2026-07-17T01:05:44.511Z2026-07-12T03:12:25.809ZS-EPMC114433833936429610.1039/d4na00590b