Suh, DJ 2024-01-21T05:43:16Z 2024-01-21T05:43:16Z 2021-09-05 2004-12-15 0022-3093 https://pubs.kist.re.kr/handle/201004/136915 Unitary and composite aerogels with high specific surface areas and pronounced mesoporosity have been prepared by the controlled sol-gel method and subsequent carbon dioxide supercritical drying and heat treatment. The aerogels were characterized by N-2 adsorption-desorption, thermal analyses (TGA-DTA), X-ray diffraction (XRD), temperature-programmed desorption (TPD), temperature-programmed reduction (TPR), infrared spectroscopy (IR), transmission electron microscopy (TEM), and reaction tests. The composite aerogels containing extremely small active metal particles showed strong metal-support or metal-metal interactions. The specific catalytic behaviours of aerogel catalysts are explained in terms of their unique textural and chemical properties. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV METAL-OXIDE AEROGELS GEL SYNTHETIC ROUTE CARBON DEACTIVATION TRANSITION Catalytic applications of composite aerogels Article 10.1016/j.jnoncrysol.2004.08.230 1 JOURNAL OF NON-CRYSTALLINE SOLIDS, v.350, pp.314 - 319 JOURNAL OF NON-CRYSTALLINE SOLIDS 350 314 319 scie scopus 000226089200045 2-s2.0-10644278066 Materials Science, Ceramics Materials Science, Multidisciplinary Materials Science Article; Proceedings Paper METAL-OXIDE AEROGELS GEL SYNTHETIC ROUTE CARBON DEACTIVATION TRANSITION aerogel catalysis sol-gel supercritical drying catalyst