Ceramics-Silikáty 47, (4) 175 - 180 (2003) |
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AEROGEL NANOSCALE ALUMINIUM OXIDES AS A DESTRUCTIVE SORBENT FOR MUSTARD GAS
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Štengl Václav 1, Bakardjieva Snejana 1, Maříková Monika 1,
Šubrt Jan 1,
Opluštil František 2,
Olšanská Marcela 2
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1 Institute of Inorganic Chemistry AS CR, 250 68 Řež, Czech Republic
2 Military Technical Institute of Protection Brno, Veslařská 230, 637 00 Brno, Czech Republic
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Keywords: Aluminium oxide, Aerogels, Sonogels, Supercritical drying, Detoxification activity, Mustard gas (HD agents)
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An autoclave hypercritical drying procedure has been used to prepare alumina(α-Al₂O₃) precursors form aluminium sec.butoxide
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 %. |
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