Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia.
Nanotechnology. 2011 Sep 30;22(39):395603. doi: 10.1088/0957-4484/22/39/395603. Epub 2011 Sep 5.
Zinc oxide nanopowders were synthesized by the sol-gel method from an ethanol solution of zinc acetate dihydrate. Detailed structural and microstructural investigations were carried out using x-ray diffraction, Raman spectroscopy, thermogravimetric and differential thermal analyses, as well as high-resolution transmission electron microscopy (TEM) and field-emission scanning electron microscopy. The intermediate compound of the reaction was layered zinc hydroxide acetate that further transforms into hexagonally shaped ZnO crystalline nanoplates (d(m) = 4 nm), which aggregate into larger spherical particles. According to the TEM analysis the ZnO nanoparticles were self-assembled into larger particles with the same orientation, i.e. aligned lattice planes of the particles. A further solvothermal treatment resulted in hexagonal, prismatic ZnO mesocrystals.
氧化锌纳米粉末通过溶胶-凝胶法从二水合乙酸锌的乙醇溶液中合成。使用 X 射线衍射、拉曼光谱、热重和差热分析以及高分辨率透射电子显微镜 (TEM) 和场发射扫描电子显微镜对其进行了详细的结构和微观结构研究。反应的中间化合物是层状乙酸锌氢氧化物，它进一步转化为六方形状的 ZnO 结晶纳米板（d(m) = 4nm），这些纳米板聚集形成更大的球形颗粒。根据 TEM 分析，氧化锌纳米颗粒自组装成具有相同取向的更大颗粒，即颗粒的晶格平面对齐。进一步的溶剂热处理导致形成六方、棱柱形 ZnO 介晶。
