Dispersion of Co3O4 nanoparticles within SBA-15 using alkane solvents

被引：61
|
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
收藏
页码：183 / 188
页数：6
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