| 초록 |
Aerogel structures are commonly made by sol-gel polymerization of inorganic metal oxides such as silica, alumina, zirconia, titania, or tungsten oxides. They are usually brittle in nature. On the hand organic aerogels are less fragile than inorganic aerogels, and they can be used as interesting nanoporous substrate structures for catalyst, filter, membrane, supercapacitor, superinsulating materials, ect. Cellulose-based nanoporous was prepared by dissolving cellulose diacetate in aq. calcium thiocyanate tetrahydrate and then freeze drying in a controlled manner. The montmorillonite (MMT) nanoplatelets, which was previously modified with dimethyl dihydrogenated tallow ammonium cations was added to improve the mechanical properties of the nanoporous structure. The properties of the resulting aerogel was investigated by X-ray diffraction (XRD), and SEM, BET (Brunauer-Emmet-Teller). |
