Abstract
Two series of nanocomposites from the FexOy–SiO2 system, containing 20 mass% iron oxide were prepared by the alkoxide route of the sol–gel method, in the absence and presence of catalyst. The silica gel has been obtained using tetraethoxysilane. The iron(III) nitrate nonahydrate has been used as iron oxides source. The samples have been prepared in identical conditions, differing only by the gelation times, induced by different surface of evaporation/volume (S/V) ratios of sol let to gelify. Thermal analysis data have established the thermal treatments conditions of the prepared samples and were correlated with X-ray diffraction, IR spectroscopy and TEM results, in order to accomplish a complete structural characterization. The correlation between the structural modifications of the FexOy–SiO2 nanocomposites and different conditions of drying has been established.
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References
T López J Méndez T Zamudio M Villa (1992) Mater. Chem. Phys. 30 161 Occurrence Handle10.1016/0254-0584(92)90218-W
A Jitianu M Crişan A Meghea I Rău M Zaharescu (2002) J. Mater. Chem. 12 1401 Occurrence Handle10.1039/b110652j Occurrence Handle1:CAS:528:DC%2BD38XivF2rs7s%3D
M Răileanu M Crişan C Petrache D Crişan M Zaharescu (2003) J. Optoelectron. Adv. Mater. 5 693
JP Jolivet E Tronc C Chanéac (2000) Eur. Phys. J. AP 10 167
S Solinas G Piccaluga MP Morales CJ Serna (2001) Acta Mater. 49 2805 Occurrence Handle10.1016/S1359-6454(01)00160-4 Occurrence Handle1:CAS:528:DC%2BD3MXltFOjsbw%3D
C Cannas G Concas D Gatteschi A Musinu G Piccaluga C Sangregorio (2002) J. Mater. Chem. 12 3141 Occurrence Handle10.1039/b204292d Occurrence Handle1:CAS:528:DC%2BD38Xntlyiu70%3D
C Chanéac E Tronc JP Jolivet (1995) Nanostruct. Mater. 6 715 Occurrence Handle10.1016/0965-9773(95)00158-1
M Popovici M Gich D Nižňansky A Roig C Savii L Casas E Molins K Zaveta C Enache J Sort S deBrion G Chouteau J Nogués (2004) Chem. Mater. 16 5542 Occurrence Handle10.1021/cm048628m Occurrence Handle1:CAS:528:DC%2BD2cXpslyku7c%3D
G Ennas A Musinu G Piccaluga D Zedda D Gatteshi C Sangregorio JL Stanger G Concas G Spano (1998) Chem. Mater. 10 495 Occurrence Handle10.1021/cm970400u Occurrence Handle1:CAS:528:DyaK1cXmt1yltQ%3D%3D
F del Monte MP Morales D Levy A Fernandez M Ocaña A Roig E Molins K O’Grady CJ Serna (1997) Langmuir 13 3627 Occurrence Handle10.1021/la9700228 Occurrence Handle1:CAS:528:DyaK2sXktVaqurw%3D
G Ennas G Marongiu A Musinu A Falqui P Ballirano R Caminiti (1999) J. Mater. Res. 14 1570 Occurrence Handle1:CAS:528:DyaK1MXisVWms7w%3D
A Jitianu M Răileanu M Crişan D Predoi M Jitianu L Stanciu M Zaharescu (2006) J. Sol–Gel Sci. Technol. 40 317 Occurrence Handle10.1007/s10971-006-9321-7 Occurrence Handle1:CAS:528:DC%2BD28XhtVCnt7rP
G Piccaluga A Corrias G Ennas A Musinu (2000) Mater. Sci. Foundations 13 4
SC Mojumdar L Raki (2006) J. Therm. Anal. Cal. 85 99 Occurrence Handle10.1007/s10973-005-7353-9 Occurrence Handle1:CAS:528:DC%2BD28XnsFOqtbk%3D
AC Pierre et al. (1992) Introduction aux procédés sol-gel Éditions SEPTIMA Paris 25
S Bruni F Cariati M Casu A Lai A Musinu G Piccaluga S Solinas (1999) Nanostruct. Mater. 11 573 Occurrence Handle10.1016/S0965-9773(99)00335-9 Occurrence Handle1:CAS:528:DyaK1MXmvFehsr4%3D
C Cannas G Concas F Congiu A Musinu G Piccaluga G Spano (2002) Z. Naturforsch. 57a 154
G Ennas MF Casula G Piccaluga S Solinas MP Morales CJ Serna (2002) J. Mater. Res. 17 590 Occurrence Handle1:CAS:528:DC%2BD38XjtFWksro%3D
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Brăileanu, A., Răileanu, M., Crişan, M. et al. Thermal behaviour study of some sol–gel iron-silica nanocomposites. J Therm Anal Calorim 88, 163–169 (2007). https://doi.org/10.1007/s10973-006-8124-y
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DOI: https://doi.org/10.1007/s10973-006-8124-y