水热法制备薄片状纳米级MoO_3微粉

Synthesis of strip-shaped nanoscale MoO_3 by hydrothermal process

以仲钼酸铵为原料,经过酸化处理后,采用水热法制备薄片状纳米级三氧化钼(MoO3),反应过程主要包括:(1)制备仲钼酸铵饱和溶液;(2)酸化后的仲钼酸铵饱和溶液与模板剂反应生成氧化钼和铵的结合物;(3)处理后制得纯净的薄片状纳米级氧化钼。所得产物经过X射线衍射(XRD)物相鉴定为MoO3晶体结构,用扫描电子显微镜(SEM)表征了产物的形貌和大小。

Hydrothermal synthesis of strip-shaped nanoscale molybdenum oxide ultrafine powders was conducted via acidification of ammonium heptamolybdate tetrahydrate. The reaction path showed the following sequence： （1）from the starting compound （NH4）6Mo7O24.4H2O; （2）formation of the molybdenum oxide-amine composite after reacting with template （3）the pure strip-shaped nanoscale molybdenum oxide phase was yielded. Crystallographic information of samples was investigated with X-ray diffraction. The morphology of crystal samples was examined with scanning electron microscopy （SEM）.