000161841 001__ 161841
000161841 005__ 20251017144555.0
000161841 0247_ $$2doi$$a10.1016/j.jmmm.2025.173288
000161841 0248_ $$2sideral$$a144504
000161841 037__ $$aART-2025-144504
000161841 041__ $$aeng
000161841 100__ $$aCuello, Natalia I.
000161841 245__ $$aMaghemite and hematite nanowires synthesized by nanocasting: precursor effects on structural and magnetic properties
000161841 260__ $$c2025
000161841 5203_ $$aMesoporous iron oxides with tailored structural and magnetic properties were synthesized using the SBA-15 silica template and two different iron precursors: Fe(NO3)3·9H2O and Fe(C5H7O2)3, denoted as FeM-1 and FeM-2, respectively. The synthesis involved a two-step impregnation-calcination process followed by silica removal. Comprehensive characterization was performed using techniques such as nitrogen adsorption–desorption isotherms, TEM, SEM-EDX, XRD, XPS, and Mössbauer spectroscopy, as well as magnetic measurements.
The results revealed significant differences in structural and magnetic properties between the two samples. FeM-1 exhibited higher structural order, greater homogeneity, and a single-phase α-Fe2O3 composition, whereas FeM-2 showed a bimodal pore size distribution and a dual-phase composition of α-Fe2O3 and ɣ-Fe2O3. Magnetic characterization indicated enhanced magnetization in FeM-2 due to the ferrimagnetic nature of ɣ-Fe2O3, while FeM-1 displayed lower magnetization consistent with the weak ferromagnetic behavior of α-Fe2O3. The combination of structural and magnetic analyses demonstrated the critical role of precursor selection in tuning the material properties for potential applications in catalysis and magnetic devices.
000161841 536__ $$9info:eu-repo/grantAgreement/EC/H2020/101007629 /EU/Nanomaterials for Enzymatic Control of Oxidative Stress Toxicity and Free Radical Generation/NESTOR$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007629 -NESTOR
000161841 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000161841 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000161841 700__ $$aFornasin, Emiliano G.
000161841 700__ $$aOliva, Marcos I.
000161841 700__ $$0(orcid)0000-0003-1558-9279$$aGoya, Gerardo F.$$uUniversidad de Zaragoza
000161841 700__ $$aMarchetti, Gustavo
000161841 700__ $$aEimer, Griselda A.
000161841 700__ $$aElías, Verónica R.
000161841 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000161841 773__ $$g629 (2025), 173288$$pJ. magn. magn. mater.$$tJournal of Magnetism and Magnetic Materials$$x0304-8853
000161841 8564_ $$s5406849$$uhttps://zaguan.unizar.es/record/161841/files/texto_completo.pdf$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-06-03
000161841 8564_ $$s2511483$$uhttps://zaguan.unizar.es/record/161841/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-06-03
000161841 909CO $$ooai:zaguan.unizar.es:161841$$particulos$$pdriver
000161841 951__ $$a2025-10-17-14:12:46
000161841 980__ $$aARTICLE