000151659 001__ 151659
000151659 005__ 20250319155217.0
000151659 0247_ $$2doi$$a10.1016/j.heliyon.2021.e07684
000151659 0248_ $$2sideral$$a126563
000151659 037__ $$aART-2021-126563
000151659 041__ $$aeng
000151659 100__ $$aAllende P.
000151659 245__ $$aInsights of the formation mechanism of nanostructured titanium oxide polymorphs from different macromolecular metal-complex precursors
000151659 260__ $$c2021
000151659 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151659 5203_ $$aThe insight into the mechanism of the unprecedented formation of pure anatase TiO2 from the macromolecular (Chitosan)•(TiOSO4)n precursor has been investigated using micro Raman spectroscopy, Scanning Electron Microscopy (SEM) and thermogravimetric/differential thermal analysis (TGA/DTA). The formation of a graphitic film was observed upon annealing of the macromolecular precursor, reaching a maximum at about 500 °C due to decomposition of the polymeric chain of the Chitosan and (PS-co-4-PVP) polymers. The proposed mechanism is the nucleation and growth of TiO2 nanoparticles over this graphitic substrate. SEM and Raman measurements confirm the formation of TiO2 anatase around 400 °C. The observation of an exothermic peak around 260 °C in the TGA/DTA measurements confirms the decomposition of carbon chains to form graphite. Another exothermic peak around 560 °C corresponds to the loss of additional carbonaceous residues.
000151659 536__ $$9info:eu-repo/grantAgreement/ES/MCINN/PID2019-107106RB-C32
000151659 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000151659 590__ $$a3.776$$b2021
000151659 591__ $$aMULTIDISCIPLINARY SCIENCES$$b28 / 74 = 0.378$$c2021$$dQ2$$eT2
000151659 592__ $$a0.55$$b2021
000151659 593__ $$aMultidisciplinary$$c2021$$dQ1
000151659 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151659 700__ $$0(orcid)0000-0001-8751-0983$$aOrera Utrilla A.$$uUniversidad de Zaragoza
000151659 700__ $$0(orcid)0000-0002-7819-8956$$aLaguna Bercero M.Á.
000151659 700__ $$aValenzuela M.L.
000151659 700__ $$aDíaz C.
000151659 700__ $$aBarrientos L.
000151659 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000151659 773__ $$g7, 7 (2021), 7684 [13 pp.]$$pHeliyon$$tHeliyon$$x2405-8440
000151659 8564_ $$s4991592$$uhttps://zaguan.unizar.es/record/151659/files/texto_completo.pdf$$yVersión publicada
000151659 8564_ $$s2584232$$uhttps://zaguan.unizar.es/record/151659/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151659 909CO $$ooai:zaguan.unizar.es:151659$$particulos$$pdriver
000151659 951__ $$a2025-03-19-14:20:15
000151659 980__ $$aARTICLE