Abstract Through hydrothermal process, the chrysanthemum-like ZnO particles are prepared with zinc acetate dihydrate (Zn(CH3COO)2$\cdot$2H2O) and sodium hydroxide (NaOH) used as main resources under the different concentrations of surfactant polyacrylamide (PAM). The microstructure, morphology and the electromagnetic properties of the as-prepared products are characterized by high-resolution transmission electron microscopy (HRTEM), field emission environment scanning electron microscope (FEESEM) and microwave vector network analyzer, respectively. The experimental results indicate that the as-prepared products are ZnO single crystalline with hexagona wurtzite structure, that the values of slenderness ratio $L_d$ are different in different PAM concentrations, and that the good magnetic loss property is found in the ZnO products, and the average magnetic loss tangent tan$\delta_u$ increases with PAM concentration increasing, while the dielectric loss tangent tan$\delta_e$ decreases.
Received: 03 April 2009
Revised: 26 April 2009
Accepted manuscript online:
PACS:
61.46.Df
(Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots))
(Methods of micro- and nanofabrication and processing)
Fund: Project supported
by the National High Technology Research and Development Program of
China (Grant No 2005A000200), the Xi'an Applied Materials Innovation
Fund, China (Grant No XA-AM-200712), and the Innovative Experiment
Program for Chinese Students (Gra
Cite this article:
Yan Jun-Feng(闫军锋), Zhang Zhi-Yong(张志勇), You Tian-Gui(游天桂), Zhao Wu(赵武), Yun Jiang-Ni(贠江妮), and Zhang Fu-Chun(张富春) Effect of polyacrylamide on morphology and electromagnetic properties of chrysanthemum-like ZnO particles 2009 Chin. Phys. B 18 4552
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