000062114 001__ 62114
000062114 005__ 20190709135442.0
000062114 0247_ $$2doi$$a10.1039/c7ra00782e
000062114 0248_ $$2sideral$$a101164
000062114 037__ $$aART-2017-101164
000062114 041__ $$aeng
000062114 100__ $$aDíaz, C.
000062114 245__ $$aSynthesis and magnetic properties of nanostructured metallic Co, Mn and Ni oxide materials obtained from solid-state metal-macromolecular complex precursors
000062114 260__ $$c2017
000062114 5060_ $$aAccess copy available to the general public$$fUnrestricted
000062114 5203_ $$aThe simple reaction of chitosan with metallic salts yields (chitosan) (MLn)x, MLn = MnCl2, CoCl2, NiCl2, macromolecular complexes which, after a thermal treatment at 800 °C under air, give nanostructured Mn2O3, Co3O4 and NiO. The polymer acts as a template in the solid state, which is eliminated after the combustion process. At an intermediate stage, a layered graphitic carbon matrix was observed by HRTEM over the grown metal oxides. A mechanism for the growth of nanostructured oxides is discussed, including Raman studies. The nanostructured Mn2O3, Co3O4 and NiO particles grow over graphite layers and the solid-state role of chitosan is crucial for the formation of this graphite substrate. An antiferromagnetic transition was observed in Co3O4 nanoparticles, with TN = 38 K, whereas NiO nanoparticles behave as a superparamagnetic material with a blocking temperature above 300 K.
000062114 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000062114 590__ $$a2.936$$b2017
000062114 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b71 / 171 = 0.415$$c2017$$dQ2$$eT2
000062114 592__ $$a0.863$$b2017
000062114 593__ $$aChemistry (miscellaneous)$$c2017$$dQ1
000062114 593__ $$aChemical Engineering (miscellaneous)$$c2017$$dQ1
000062114 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000062114 700__ $$aValenzuela, M.L.
000062114 700__ $$0(orcid)0000-0002-7819-8956$$aLaguna-Bercero, M.A.$$uUniversidad de Zaragoza
000062114 700__ $$0(orcid)0000-0001-8751-0983$$aOrera, A.$$uUniversidad de Zaragoza
000062114 700__ $$aBobadilla, D.
000062114 700__ $$aAbarca, S.
000062114 700__ $$aPeña, O.
000062114 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000062114 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000062114 773__ $$g7, 44 (2017), 27729-27736$$pRSC ADVANCES$$tRSC Advances$$x2046-2069
000062114 8564_ $$s1955628$$uhttps://zaguan.unizar.es/record/62114/files/texto_completo.pdf$$yVersión publicada
000062114 8564_ $$s115147$$uhttps://zaguan.unizar.es/record/62114/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000062114 909CO $$ooai:zaguan.unizar.es:62114$$particulos$$pdriver
000062114 951__ $$a2019-07-09-11:36:42
000062114 980__ $$aARTICLE