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水热法制备薄片状纳米级MoO₃微粉

Synthesis of strip-shaped nanoscale MoO₃ by hydrothermal process

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【Author】 Li Junsheng1 Zhao Peng2 Yao Yanyan1 Tian Xiaozhen1 (1.School of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055;2.Department of Materials, Chang’an University, Xi’an 710054)

【机构】西安建筑科技大学材料学院；长安大学资源学院材料系；西安建筑科技大学材料学院西安710055；西安710054；西安710055；

【摘要】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。更多还原

【Abstract】 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).更多还原