三氧化钼亚微米带的制备与表征  

PREPARATION AND CHARACTERIZATION OF MOLYBDENUM TRIOXIDE SUB-MICROBELTS

作　　者：武存喜[1] 杨海滨[1] 祝洪洋[2] 李享[1] 刘世凯[2] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454003 [2]吉林大学超硬材料国家重点实验室,吉林长春130012

出　　处：《中国钼业》2007年第3期31-34,共4页China Molybdenum Industry

摘　　要：通过酸化钼酸铵溶液制备了三氧化钼(α-MoO3)亚微米带。考察了煅烧时间、钼酸铵溶液浓度以及表面活性剂对三氧化钼亚微米带晶体结构和形貌的影响。用X射线粉末衍射仪(XRD)、场发射扫描电镜(FE-SEM)和X射线能谱仪(EDX)对产物进行了表征。根据实验结果,探讨了三氧化钼亚微米带以及由纳米薄片构成的三氧化钼亚微米带特殊形貌的形成机理。Molybdenum trioxide （α - MoO3 ） sub - microbelts were synthesized via acidification of ammonium heptamolybdate tetrahydrate. The influences of calcining time, concentration of ammonium molybdate solution and surfactant on crystal structure and morphology of the obtained MoO3 sub - microbelts were carefully investigated. The X - ray powder diffraction （ XRD）, field emission scanning electron microscopy （ FE - SEM） and energy dispersive X -ray spectrometer （EDX） were used to characterize the products. The formation mechanisms of the obtained MoO3 sub - microbelts and the special morphology of the MoO3 sub - microbelts composed of nanopieces were discussed based on the experimental results.

关 键 词：三氧化钼 亚微米带 晶体结构 形貌 

分 类 号：TG146.412[一般工业技术—材料科学与工程]