Synthesis of porous zinc-based/zinc oxide composites via sol-gel and ambient pressure drying routes.
Synthesis of porous zinc-based/zinc oxide composites via sol-gel and ambient pressure drying routes.
复制标题
通过溶胶-凝胶和常压干燥途径合成多孔锌基/氧化锌复合材料。
DOI：
10.1007/s10853-018-2138-2
复制
发表时间：
2018
影响因子：
4.5
通讯作者：
Han X
中科院分区：
文献类型：
--
作者：
Han X
以正己烷为干燥溶剂，采用溶胶-凝胶法和常压干燥法制备了多孔锌基和氧化锌复合材料。通过X射线衍射分析、扫描电子显微镜和透射电子显微镜研究的各种高度多孔的Zn基相（Zn 1基和Zn 5基）表明，它们通过热处理（在200 °C下）有助于环境压力干燥的纳米多孔纤锌矿（六方）ZnO的发展。在多孔锌基复合材料中观察到由纳米片组成的大孔花状结构，在ZnO纳米颗粒的片晶中观察到纳米孔结构。通过对多孔纤锌矿ZnO常压干燥合成工艺的详细研究，发现了制备高孔隙率Zn基/ZnO复合材料的可能途径。
Porous Zn-based and ZnO composites are successfully fabricated via the sol–gel process and ambient pressure drying method using hexane as the drying solvent for the reduction in capillary force during drying process. Various highly porous Zn-based phases (Zn1-based and Zn5-based) that are studied by X-ray diffraction analysis, scanning electron microscopy and transmission electron microscopy show that they contribute through heat treatment (at 200 °C) to the development of ambient pressure dried nanoporous wurtzite (hexagonal) ZnO. A macroporous flower-like structure consisting of nanosheets is observed in porous Zn-based composites, and nanoporous structure is observed within platelets of ZnO nanoparticles. Possible routes for preparing highly porous Zn-based/ZnO composites are discovered by detailing the process for ambient pressure drying synthesis of porous wurzite ZnO.