硫系化合物
微型多孔材料
沸石
四面体
材料科学
硒化物
硫化物
离子
光致发光
离子交换
硫族元素
无机化学
连锁
化学工程
矿物学
纳米技术
结晶学
化学
催化作用
光电子学
有机化学
冶金
硒
复合材料
DNA
工程类
生物化学
作者
Nanfeng Zheng,Xianhui Bu,Bing Wang,Pingyun Feng
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2002-12-20
卷期号:298 (5602): 2366-2369
被引量:479
标识
DOI:10.1126/science.1078663
摘要
Crystalline semiconducting sulfide and selenide zeolite analogs were synthesized that possess four-connected, three-dimensional tetrahedral networks built from tetravalent (M4+ = Ge4+ or Sn4+, where M = meta) and trivalent (M3+ = Ga3+ or In3+) cations. Microporous materials were obtained in all four combinations of M4+ and M3+, and some of them were thermally stable up to at least 380 degrees C. These materials exhibit framework topologies with pore size ranging from 12 to 24 tetrahedral atoms, high surface area, high framework charge density and ion exchange capacity, and tunable electronic and optical properties.
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