水热法合成一维纳米级MoO_3微粉  

Synthesis the One-dimensional nano-size MoO_3 via acidification for hydrolyzing

作　　者：赵延霞[1] 

机构地区：[1]延安职业技术学院化工化学系,陕西延安716000

出　　处：《中国钨业》2012年第3期25-29,共5页China Tungsten Industry

摘　　要：以仲钼酸铵为钼源,选用强弱不同的酸使仲钼酸铵酸化水解生成中间体,经洗涤、干燥、焙烧,制备了淡灰蓝色纳米级MoO3微粉;研究了溶液酸度、钼酸铵浓度、焙烧温度等因素对MoO3微粉相对结晶度、晶体尺寸和形貌的影响。One-dimensional microstructures of molybdenum trioxide have been synthesized via acidification of ammonium heptamolybdate tetrahydrate. After drying and calcining the gel-like precipitate, XRD results indicate that nano-sized MoO3 was formed, in which the crystal structures are dependent on the calcination temperatures. The morphology of the MoO3 powder was observed with SEM, which different agglomerated forms of MoO3 were found depending on the calcination temperatures.

关 键 词：仲钼酸铵 酸化水解 纳米MoO3 

分 类 号：TB383.1[一般工业技术—材料科学与工程]