000097367 001__ 97367
000097367 005__ 20210902121823.0
000097367 0247_ $$2doi$$a10.1039/d0nr01361g
000097367 0248_ $$2sideral$$a119148
000097367 037__ $$aART-2020-119148
000097367 041__ $$aeng
000097367 100__ $$aMuzzi, B.
000097367 245__ $$aUnraveling the mechanism of the one-pot synthesis of exchange coupled Co-based nano-heterostructures with a high energy product
000097367 260__ $$c2020
000097367 5060_ $$aAccess copy available to the general public$$fUnrestricted
000097367 5203_ $$aThe development of reproducible protocols to synthesize hard/soft nano-heterostructures (NHSs) with tailored magnetic properties is a crucial step to define their potential application in a variety of technological areas. Thermal decomposition has proved to be an effective tool to prepare such systems, but it has been scarcely used so far for the synthesis of Co-based metal/ferrite NHSs, despite their intriguing physical properties. We found a new approach to prepare this kind of nanomaterial based on a simple one-pot thermal decomposition reaction of metal-oleate precursors in the high boiling solvent docosane. The obtained NHSs are characterized by the coexistence of Co metal and Co doped magnetite and are highly stable in an air atmosphere, thanks to the passivation of the metal with a very thin oxide layer. The investigation of the influence of the metal precursor composition (a mixed iron-cobalt oleate), of the ligands (oleic acid and sodium oleate) and of the reaction time on the chemical and structural characteristics of the final product, allowed us to rationalize the reaction pathway and to determine the role of each parameter. In particular, the use of sodium oleate is crucial to obtain a metal phase in the NHSs. In such a way, the one-pot approach proposed here allows the fine control of the synthesis, leading to the formation of stable, high performant, metal/ferrite NHSs with tailored magnetic properties. For instance, the room temperature maximum energy product was increased up to 19 kJ m-3 by tuning the Co content in the metal precursor.
000097367 536__ $$9info:eu-repo/grantAgreement/EC/H2020/720853/EU/Anisometric permanent hybrid magnets based on inexpensive and non-critical materials/AMPHIBIAN$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 720853-AMPHIBIAN$$9info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 823717-ESTEEM3
000097367 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000097367 590__ $$a7.79$$b2020
000097367 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b62 / 333 = 0.186$$c2020$$dQ1$$eT1
000097367 591__ $$aPHYSICS, APPLIED$$b23 / 160 = 0.144$$c2020$$dQ1$$eT1
000097367 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b32 / 178 = 0.18$$c2020$$dQ1$$eT1
000097367 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b29 / 106 = 0.274$$c2020$$dQ2$$eT1
000097367 592__ $$a2.037$$b2020
000097367 593__ $$aNanoscience and Nanotechnology$$c2020$$dQ1
000097367 593__ $$aMaterials Science (miscellaneous)$$c2020$$dQ1
000097367 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000097367 700__ $$aAlbino, M.
000097367 700__ $$aInnocenti, C.
000097367 700__ $$aPetrecca, M.
000097367 700__ $$aCortigiani, B.
000097367 700__ $$aFernández, C.D.J.
000097367 700__ $$aBertoni, G.
000097367 700__ $$0(orcid)0000-0002-6813-780X$$aFernandez-Pacheco, R.$$uUniversidad de Zaragoza
000097367 700__ $$0(orcid)0000-0002-4599-3013$$aIbarra, A.$$uUniversidad de Zaragoza
000097367 700__ $$0(orcid)0000-0003-0602-492X$$aMarquina, C.$$uUniversidad de Zaragoza
000097367 700__ $$0(orcid)0000-0003-0681-8260$$aIbarra, M.R.$$uUniversidad de Zaragoza
000097367 700__ $$aSangregorio, C.
000097367 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000097367 773__ $$g12, 26 (2020), 14076-14086$$pNanoscale$$tNanoscale$$x2040-3364
000097367 8564_ $$s3424430$$uhttps://zaguan.unizar.es/record/97367/files/texto_completo.pdf$$yVersión publicada
000097367 8564_ $$s67138$$uhttps://zaguan.unizar.es/record/97367/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000097367 909CO $$ooai:zaguan.unizar.es:97367$$particulos$$pdriver
000097367 951__ $$a2021-09-02-10:09:50
000097367 980__ $$aARTICLE