Beilstein J. Nanotechnol.2011,2, 110–118, doi:10.3762/bjnano.2.13
larger batch sizes the influence of the quantity of solvent on the quality of the SBA-15 is reduced.
Keywords: SBA-15; scale-up; silica mesoporous material; tensile strength effect; washing; Introduction
SBA-15 is a mesoporoussilica sieve based on uniform hexagonal pores with a narrow pore size
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Figure 1:
N2 adsorption/desorption isotherms of SBA-15 unwashed (1A), after washing with 30 mL ethanol (1B) a...
Beilstein J. Nanotechnol.2011,2, 28–33, doi:10.3762/bjnano.2.3
impregnation from the metal precursor and mesoporoussilica SBA-15 as the template. A rapid one-step treatment in an IR furnace reduces the preparation time to only 10 min. In comparison, a conventional furnace requires 5 h reaction time to produce nanoparticles with similar textural properties. Another
present work, we investigated a rapid and efficient one-step route for the direct IR-accelerated synthesis of LiNbO3 nanopowders using an ordered mesoporoussilica SBA-15 as the template, in combination with an IR furnace for the crystallization. The matrix stabilizes the nanoparticles against sintering
crystallites in the template was minimized. The determination of particle size, as calculated from the Scherrer equation, leads to a value of about 10 nm which corresponds well with the pore diameter of the ordered mesoporoussilica SBA-15 (10.5 nm in diameter), verifying that the mesoporoussilica is a useful
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Figure 1:
Wide-angle X-ray diffraction patterns of as-prepared LiNbO3/SBA-15 composites (LN). Effect of react...