微／纳米锌粉两步氧化法制备ZnO的机理研究  

Study on the Mechanism of Micro/nano Zinc Powders Oxidized into ZnO by Two-step Method

作　　者：桂阳海[1] 谢长生[2] 张勇[1] 徐甲强[1] 王焕新[1] 

机构地区：[1]郑州轻工业学院河南省表界面科学重点实验室,郑州450002 [2]华中科技大学模具技术国家重点实验室,武汉430074

出　　处：《人工晶体学报》2008年第4期1016-1019,1036,共5页Journal of Synthetic Crystals

基　　金：国家自然科学基金(No.50271029)

摘　　要：采用在乙醇溶剂中以H2O2预氧化微/纳米锌粉,再在较高温度下热氧化的方法制备了高质量的ZnO粉末。通过X射线衍射、场发射电子显微镜、热重-差示扫描量热等方法对制备产物进行了相关表征。根据PBR金属氧化理论和相关分析结果研究了微/纳米锌粉不同的氧化生长机制,并建立了微/纳米锌粉的晶体生长模型。High-quality ZnO were prepared by employing HzOz to pre-oxidize the micro/nano zinc powders in ethanol solvent and then thermal oxidized in higher temperature. The X-ray diffraction （XRD） spectrum, field emission SEM and TG-DSC technologies were employed to characterize the asoxidized products obtained in the two oxidizing steps. The growth mechanism of micro/nano zinc powders were investigated according to PBR metallic oxidation theory and the model of oxidation process are also illustrated.

关 键 词：微/纳米锌粉 氧化锌 氧化 晶体生长 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]