采用汽相传输法制备高质量四脚状ZnO纳米结构(T-ZnO).以ZnO纳米晶为同质催 化剂,在锌源-衬底间添加蒸汽过滤器,研究过滤器和纳米晶对产物组成和形态的影响,以及 T-ZnO的结构特征.实验结果表明,T-ZnO为纤锌矿结构,分布均匀、尺寸一致,由四个柱 状纳米棒和一个球形核心组成.纳米棒直径约为60nm,沿<0001>晶向生长.过滤器的使用可 有效地去除产物中颗粒,而ZnO纳米晶的使用明显降低其尺寸,提高其均匀性.
High-quality tetrapodlike ZnO nanostructures (T-ZnO) were synthesized by a vapor transport method, in which
ZnO nanocrystals were used as homogeneous catalyst and a vapor filter was placed between the source and the substrate. The microstructure of T-ZnO
and the effects of the filter and ZnO nanocrystals on the constitute and morphology of the products were investigated. Results show that T-ZnO is
uniform and evenly distributing, constituted by four pillarlike nanorods and a spheral core. All components are wurtzite structure. The diameter of
nanorods is 60nm, growing along <0001> direction. The use of filter leads to the effective remove of the particles in the products. ZnO
nanocrystals are beneficial to reduce the size and improve the uniformity of the product.
参考文献
| [1] | Huang H. Michael, Mao Samuel, Feick Henning, et al. Science, 2001, 292: 1897--1899. [2] Li Y, Meng W, Zhang L D. Applied Physics Letters, 2000, 76 (15): 2011--2013. [3] Huang H. Michael, Wu Yiying, Feick Henning, et al. Adv. Mater., 2001, 13 (2): 113--116. [4] Lao Yu Lao, Wen Jian Guo, Ren Zhi Feng. Nano Letters, 2002, 2 (11): 1287--1291. [5] Gao Pu Xian, Wang Zhong Lin. J. Am. Chem. Soc., 2003, 125: 11299--11305. [6] Lyu Seung Chul, Zhang Ye, Lee Cheol Jin, et al. Chem. Mater., 2003, 15 (17): 3294--3299. [7] Dai Y, Zhang Y, Li Q K, et al. Chem. Phys. Lett., 2002, 358: 83--86. [8] Yan Haoquan, He Rongrui, Pham Johnny. Adv. Mater., 2003, 15 (5): 402--405. [9] Roy V A L, Djurisic A B, Chan W K, et al. Applied Physics Letters, 2003, 83 (1): 141--143. [10] Roy V A L, Djurisic A B, Liu H, et al. Applied Physics Letters, 2004, 84 (5): 756--758. [11] Yan Haoquan, He Rongrui, Johnson Justin. J. Am. Chem. Soc., 2003, 125 (16): 4728--4729. [12] Park W I, Kim D H, Jung A W, et al. Applied Physics Letters, 2002, 80 (22): 4232--4234. [13] Liu Bin, Zeng Hua Chun. J. Am. Chem. Soc., 2003, 125: 4430--4431. [14] Ng Hou T, Li Jun, Smith Michael K, et al. Science, 2003, 300: 1249. [15] Nicolau Y F. Appl. Sci., 1985, 22-23: 1061--1074. [16] Iwanaga H, Fujii M, Takeuchi S. Journal of Crystal Growth, 1993, 134: 275--280. [17] Kitano Motoi, Hamabe Takeshi, Maeda Sachiko. Journal of Crystal Growth, 1993, 128: 1099--1103. [18] Tang C C, Fan S S, Chapelle Marc Lamy de la, et al. Chem. Phys. Lett., 2001, 333: 12--15. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%