Investigating the Properties of the Nanocomposite (poly(4-vinyl pyridine)/Al-SBA-15): A Precursor for β-SiAlON

Abstract

The nanocomposite precursor (P4VP/Al-SBA-15) was synthesized and then fired under N₂ atmosphere at 1450°C with 10°C/min heating rate and soaking time of 0 and 6 h in order to form β-SiAlON by using the carbothermal reduction and nitridation process (CRN). The nanocomposites was characterized by small-angle XRD (SXRD), microstructure studies (TEM/DSC) and ²⁷Al-NMR (MAS-NMR). Results, from the sample fired under N₂ atmosphere, showed that not only the carbon amount, type of carbon and the surface area of the precursor was important, but that a higher than stochiometric amount of carbon was unavoidable.

Keywords:

• β-sialon
• Al-SBA-15
• carbothermal
• nanocomposite
• reduction