高等学校化学学报Issue(11)：2285-2290,6.DOI:10.7503/cjcu20140725
具有16元环超大孔道磷酸钒化合物的水热合成及表征
Hydrothermal Syntheses and Characterizations of Vanadium Phosphates with Extra-large 16-Ring Channels
摘要
Abstract
Using n-butylamine, n-propylamine and piperidine as templates or structure directing agents (SDAs), three new open-framework vanadium phosphates VPO-n(n=1, 2, 3) were hydrothermally synthe-sized. These compounds were characterized by single-crystal and powder X-ray diffractions, ICP, elementary analysis, TGA, SEM and XPS analyses. VPO-1 crystallizes in the cubic system, space group Im3m, with a=b=c=2. 6586(3) nm, α=β=γ=90°, V=18. 791(4) nm3. The structure of VPO-1 has 3D intersecting 8-ring and extra-large 16-ring channels, as well as large cavities with 32-ring windows. VPO-n(n=1, 2, 3) are iso-structures, which are analogous to [HN(CH2CH2)3NH]K1.35[V5O9(PO4)2]·H2O synthesized by triethylenediamine( DABCO) as template. Structure comparison of these compounds indicates that the organic templates not only influence the symmetry and cell parameters of the crystal structure, but also can control the opening sizes and shapes of the channels and the cages in the resulting structures.关键词
水热合成/磷酸钒/超大孔/有机模板剂Key words
Hydrothermal synthesis/Vanadium phosphate/Extra-large pore/Organic template分类
化学化工引用本文复制引用
李莉,颜岩,王大明,郑大方,李激扬..具有16元环超大孔道磷酸钒化合物的水热合成及表征[J].高等学校化学学报,2014,(11):2285-2290,6.基金项目
国家自然科学基金(批准号:21271081)和新世纪优秀人才支持计划(批准号:NCET-11-0197)资助 （批准号:21271081）
