Extra-large-pore zeolites with two-dimensional channels formed by 14 and 12 rings
Extra-large-pore zeolites with two-dimensional channels formed by 14 and 12 rings
复制标题
DOI：
10.1126/science.1098242
复制
发表时间：
2004-05-14
期刊：
影响因子：
56.9
通讯作者：
Bats, N
中科院分区：
文献类型：
--
作者：
Paillaud, JL;Harbuzaru, B;Bats, N
具有较大孔径和三维孔隙拓扑结构的稳定沸石备受关注，因为它们可以吸附较大的分子，特别是在石油提炼方面的应用。已知几种具有超过12个环的开口形成通道的大孔沸石材料，但它们都具有一维通道系统，限制了它们在催化中的应用。本文报道了一种热稳定的含锗沸石IM-12的合成和一些表征，它包含了第一个由14环和12环通道形成的超大孔隙的二维通道系统。
Stable zeolites that have larger pore apertures and a three-dimensional pore topology are of interest because they could be used to adsorb larger molecules, particularly for application in oil re. ning. Several large-pore zeolitic materials with channels formed by openings of more than 12 rings are known, but all of them have a one-dimensional channel system that limits their use in catalysis. We report the synthesis and some characterizations of IM-12, a thermally stable germanium-containing zeolite that contains the first two-dimensional channel system with extra-large pores formed by 14- and 12-ring channels.