Large-Scale Synthesis and Microwave Absorption Enhancement of Actinomorphic Tubular ZnO/CoFe2O4 Nanocomposites

详细信息    查看全文

• 作者：Jing Cao ; Wuyou Fu* ; Haibin Yang ; Qingjiang Yu ; Yanyan Zhang ; Shikai Liu ; Peng Sun ; Xiaoming Zhou ; Yan Leng ; Shuangming Wang ; Bingbing Liu ; Guangtian Zou
• 刊名：Journal of Physical Chemistry B
• 出版年：2009
• 出版时间：April 9, 2009
• 年：2009
• 卷：113
• 期：14
• 页码：4642-4647
• 全文大小：300K
• 年卷期：v.113,no.14(April 9, 2009)
• ISSN：1520-5207

文摘

Actinomorphic tubular ZnO/CoFe₂O₄ nanocomposites were fabricated in large scale via a simple solution method at low temperature. The phase structures, morphologies, particle size, shell thickness, chemical compositions of the composites have been characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The as-synthesized nanocomposites were uniformly dispersed into the phenolic resin then the mixture was pasted on metal plate with the area of 200 mm × 200 mm as the microwave absorption test plate. The test of microwave absorption was carried out by the radar-absorbing materials (RAM) reflectivity far field radar cross-section (RCS) method. The range of microwave absorption is from 2 to 18 Hz and the best microwave absorption reach to 28.2 dB at 8.5 Hz. The results indicate that the composites are of excellence with respect to microwave absorption.