Related Experiment Video
Updated: Aug 18, 2026

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
Published on: July 9, 2015
Assembly of heteropoly acid nanoparticles in SBA-15 and its performance as an acid catalyst
Shu-Yuan Yu1, Li-Ping Wang, Bo Chen
1Department of Chemistry, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, China.
Abstract:
Keggin-type 12-tungstophosphoric acid (TPA) nanocrystals have been assembled inside the pores of mesoporous silica through a vacuum impregnation method by using large-pore SBA-15 as a nanoreactor. The product was characterized by Brunauer-Emmet-Teller particle size distribution (BET-PSD), NMR and FT-IR spectroscopy, X-ray diffraction (XRD), tranmsission electron microscopy (TEM), differential thermal analysis (DTA) and FT-IR of adsorbed pyridine. The experimental results illustrate that the TPA nanocrystals are excellent Brønsted acid catalytic materials at room temperature.

