期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 118, 期 1-3, 页码 183-188出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2008.08.053
关键词
Nanocasting Co3O4; SBA-15; Double solvent technique
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.
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