Ceramics-Silikáty 47 (4) 175-180 (2003)

AEROGEL NANOSCALE ALUMINIUM OXIDES AS A DESTRUCTIVE SORBENT FOR MUSTARD GAS

V. Štengl, S. Bakardjieva, M. Maříková, J. Šubrt, F. Opluštil, M. Olšanská

An autoclave hypercritical drying procedure has been used to prepare alumina(a-Al₂O₃) precursors form aluminium sec.but-oxide C₁₂ H₂₇ Al O₃. Specific surface area was 1000 m²/g. The samples were characterized by X-ray diffraction, DTA-TG, scanning and transmission electron microscopy. The precursors were taken for experimental evaluation of their reactivity with Mustard Gas (Yperite, HD agents, Bis(2-chlorethyl)sulfid). Largest percentage of the conversion mustard into non-toxic products after the elapse of the reaction was 80 %.

Keywords: Aluminium oxide, Aerogels, Sonogels, Supercritical drying, Detoxification activity, Mustard gas (HD agents)