引用本文:
杨则恒, 张卫新, 许俊, 韩效钊, 陈敏. 溶剂热合成法制备Mn3O4纳米粉体[J]. 应用化学,
2005, 22(7): 722-725.
Citation: YANG Ze-Heng, ZHANG Wei-Xin, XU Jun, HAN Xiao-Zhao, CHEN Min. Controllable Synthesis of Mn3O4 Nanoparticles via Solvothermal Method[J]. Chinese Journal of Applied Chemistry, 2005, 22(7): 722-725.
Citation: YANG Ze-Heng, ZHANG Wei-Xin, XU Jun, HAN Xiao-Zhao, CHEN Min. Controllable Synthesis of Mn3O4 Nanoparticles via Solvothermal Method[J]. Chinese Journal of Applied Chemistry, 2005, 22(7): 722-725.
溶剂热合成法制备Mn3O4纳米粉体
English
Controllable Synthesis of Mn3O4 Nanoparticles via Solvothermal Method
Abstract:
Mn3O4 nanoparticles were prepared at low temperatures with KMnO4 and ethanol as reactants via a solvothermal method.With the help of spectrophotometer and X-ray diffractometer,the influences of temperature,reaction time and water content in the solvent on the reaction process as well as the product were investigated.Experiments showed that increasing reaction temperature accelerated the reaction rate,improved the crystallinity of Mn3O4 and made its particles grow larger.When reaction temperature was blow 100℃,the reaction slowed down.Water in the solvent can accelerate the reaction rate of KMnO4,but higher water content leads to a new phase MnO(OH).Based on the experiments,the controllable synthesis of nanocrystalline Mn3O4 has been achieved.Nanocrystalline Mn3O4 powders with average particle sizes of 10 nm and 60 nm were obtained,respectively at 100℃ and 160℃.The products were characterized with X-ray powder diffraction and transmission electron microscopy.
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Key words:
- trimanganese tetroxide
- / nanoparticle
- / solvothermal synthesis
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