Small angle neutron scattering study of silica gels: influence of pH
FMA Margaca, IMM Salvado, J Teixeira - Journal of non-crystalline solids, 1999 - Elsevier
FMA Margaca, IMM Salvado, J Teixeira
Journal of non-crystalline solids, 1999•ElsevierThe technique of Small Angle Neutron Scattering (SANS) has been used to investigate the
microstructure, at the nanoscale level, of SiO2 gels at different processing stages. The
samples were prepared by the alkoxide route of the sol–gel process with different pH values.
They were measured as xerogels after heat treatment at different temperatures and as wet
gels at the gel point and after aging at 60° C. SANS measurements confirmed that pH has a
strong influence upon the nanostructure of gels. The present work reports the main SANS …
microstructure, at the nanoscale level, of SiO2 gels at different processing stages. The
samples were prepared by the alkoxide route of the sol–gel process with different pH values.
They were measured as xerogels after heat treatment at different temperatures and as wet
gels at the gel point and after aging at 60° C. SANS measurements confirmed that pH has a
strong influence upon the nanostructure of gels. The present work reports the main SANS …
The technique of Small Angle Neutron Scattering (SANS) has been used to investigate the microstructure, at the nanoscale level, of SiO2 gels at different processing stages. The samples were prepared by the alkoxide route of the sol–gel process with different pH values. They were measured as xerogels after heat treatment at different temperatures and as wet gels at the gel point and after aging at 60°C. SANS measurements confirmed that pH has a strong influence upon the nanostructure of gels. The present work reports the main SANS results obtained in this investigation and their interpretation.
Elsevier
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