A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered...A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered structure and the hexagonal arrangements of uniformly size pores distribution.展开更多
This paper mainly elaborated the recent developments of the studies on the new type zeohite molecular sieve host-nanoguest composite materials composing of molecular sieve chaimels or cages encapsulated nanoscale mate...This paper mainly elaborated the recent developments of the studies on the new type zeohite molecular sieve host-nanoguest composite materials composing of molecular sieve chaimels or cages encapsulated nanoscale materials from the point of nanochemistry and material science,and the trends of development in this field. As the research of the properties of this kind of materials are gomg on. it is possible that this kind of host-guest nanocomposite materials will be usd in some fields. such as science and high technology fields. as the new type of ptical. electrical and magnetic materials in the level of molecular assembly. This paper contains the following contents:hosts and guests; the sizes and shapes of guests; the optical, electrical and magnetic properties of the materials; the syntheses and characterizations of the materials; the applications of the materials and forecast.展开更多
文摘A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered structure and the hexagonal arrangements of uniformly size pores distribution.
文摘This paper mainly elaborated the recent developments of the studies on the new type zeohite molecular sieve host-nanoguest composite materials composing of molecular sieve chaimels or cages encapsulated nanoscale materials from the point of nanochemistry and material science,and the trends of development in this field. As the research of the properties of this kind of materials are gomg on. it is possible that this kind of host-guest nanocomposite materials will be usd in some fields. such as science and high technology fields. as the new type of ptical. electrical and magnetic materials in the level of molecular assembly. This paper contains the following contents:hosts and guests; the sizes and shapes of guests; the optical, electrical and magnetic properties of the materials; the syntheses and characterizations of the materials; the applications of the materials and forecast.
