Hydrothermal Synthesis of Yttrium Hydroxide Nanotubes
Yttrium hydroxide nanotubes were synthesized by hydrothermal method using Y(NO)3·6H2O as raw materials.X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) were used to analyze the crystal phase and morphology of the as-prepared yttrium hydroxide nanotubes respectively.In this paper,the effects of the hydrothermal temperature and the concentration of the mineralization agent on the formation of yttrium hydroxide nanotubes were studied and the corresponding forming mechanism was also discussed.The results indicate that the yttrium hydroxide nanotubes can be obtained by hydrothermal method with the following optimal conditions:water as a solvent,NaOH concentration is 0.6 mol/L,the reaction temperature is 200 ℃,and the reaction time is 8 h.In the growth process of yttrium hydroxide nanotubes,the hexagonal crystal nucleus of yttrium hydroxide is obtained first because the hexagonal crystal nucleus has the crystallization habit of growing along c axis orientationally.The yttrium hydroxide nanorods are obtained.The surface activating energy of the nanorods is stronger than that in its center.The yttrium hydroxide nanotubes are got finally.
Hydrothermal synthesis Yttrium hydroxide
Huijun Ren Guoqiang Tan Lihua Song Wei Zhang Ao Xia
Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science and Technology,Xian 710021,China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
95-99
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）