Dispersion of Co3O4 nanoparticles within SBA-15 using alkane solvents

被引：62

作者：

van der Meer, Juliette ^{[2
]}

Bardez, Isabelle ^{[3
]}

Bart, Florence ^{[3
]}

Albouy, Pierre-Antoine ^{[4
]}

Wallez, Gilles ^{[5
]}

Davidson, Anne ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, UMR LRS 7609, F-75252 Paris 05, France

[2] CNRS, ICSM, UMR 5257, Inst Chim Separat, F-30207 Bagnols Sur Ceze, France

[3] CEA Valrho Marcoule, DEN DTCD SECM, F-30207 Bagnols Sur Ceze, France

[4] Univ Paris 11, CNRS, UMR 8502, LPS, F-91405 Orsay, France

[5] Univ Paris 06, CNRS, UMR LCMC 7574, F-75252 Paris, France

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2009年 / 118卷 / 1-3期

关键词：

Nanocasting Co3O4; SBA-15; Double solvent technique; NANOCRYSTALLINE COBALT OXIDE; MESOPOROUS SILICA; FACILE SYNTHESIS; SIZE; NANOWIRES; OXIDATION; CRYSTALS;

D O I：

10.1016/j.micromeso.2008.08.053

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Spinel cobalt oxide nanoparticles have been nanocasted inside the pores of a SBA-15 silica using the "two solvents" technique, which implies that the silica is pre-wetted with an alkane solvent before loading the pores with an aqueous solution carrying the precursor, a nitrate salt, of the desired particle composition. TEM analysis of the samples, comparing the effect of four different solvents (n-pentane. n-hexane, n-heptane and cyclohexane), showed that the nanoparticles' size, shape and dispersion within the silica support differ as a function of the non-polar solvent. N-2 sorption, XRD and SAXS experiments have been carried out to confirm this phenomenon by more statistical data. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：183 / 188

页数：6

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