柯肯德尔效应
透射电子显微镜
热重分析
扫描电子显微镜
化学工程
X射线光电子能谱
水热合成
四水合物
千分尺
粉末衍射
溴化铵
材料科学
热液循环
化学
纳米技术
结晶学
无机化学
晶体结构
复合材料
光学
肺表面活性物质
物理
工程类
作者
Chenghua Guo,Guijun Zhang,Zhurui Shen,Pingchuan Sun,Zhong‐Yong Yuan,Qinghua Jin,Baohui Li,Da-tong Ding,Tiehong Chen
出处
期刊:Chinese Journal of Chemical Physics
[American Institute of Physics]
日期:2006-12-01
卷期号:19 (6): 543-548
被引量:29
标识
DOI:10.1360/cjcp2006.19(6).543.6
摘要
Micrometer-sized MoO2 hollow spheres were synthesized hydrothermally with ammonium heptamolybdate tetrahydrate as molybdenum source, Cetyltrimethylammonium bromide as structure-directing agent and C2H5OH as reducing agent, respectively. The products were investigated by X-ray diffraction, thermogravimetry and differential thermal analysis, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. A morphology transition of "blocks-solid spheres-hollow spheres" during the growth process was observed and the possible mechanism for the formation of MoO2 samples was proposed to be through a microscale Kirkendall effect.
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