Evolution of self-assembled silica-tetrapropylammonium nanoparticles at elevated temperatures

Article Abstract:

Small-angle X-ray and neutron scattering, to determine the changes in particle size, morphology, and structure, are used to study the time-dependent evolution of silica-tetrapropylammonium nanoparticles at higher temperatures. The findings suggest that nanoparticle growth is an irreversible process that occurs through an Ostwald ripening mechanism and is accompanied by the net increase in solution pH and conductivity.

Usage, Design and construction, Electric properties, X-rays, X-ray diffraction, Spectra, Infrared spectroscopy, Structure, Nanoparticles

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Spontaneous formation of silica nanoparticles in basic solutions of small tetraalkylammonium cations

Article Abstract:

The spontaneous formation of silica nanoparticles as a general phenomenon in basic solutions of small tetraalkylammonium cations is discussed. It is suggested that these silica nanoparticles may be a connection between the synthesis of zeolites and ordered mesoporous silicas.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Zeolites, Analysis, Composition, Chemical synthesis, Chemical properties, Ammonium compounds, Ammonium chloride, Ammonium paratungstate, Ammonium salts

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