Hydrothermal Synthesis and Formation Mechanism of Micrometer-sized MoO2 Hollow Spheres
- Received Date: 2006-01-13
Abstract: 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, thermo- gravimetry 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.
|Citation:||Cheng-hua Guo, Gui-jun Zhang, Zhu-rui Shen, Ping-chuan Sun, Zhong-yong Yuan, Qing-hua Jin, Bao-hui Li, Da-tong Ding, Tie-hong Chen. Hydrothermal Synthesis and Formation Mechanism of Micrometer-sized MoO2 Hollow Spheres[J]. Chinese Journal of Chemical Physics , 2006, 19(6): 543-548. doi: 10.1360/cjcp2006.19(6).543.6|