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Citation: CAO Zheng-Yan, YANG Chun-Ming, LI Hai-Yin, XIANG Yan-Bin. Preparation and Electromagnetic Properties of PAn/CoC₂O₄ Nanocomposites[J]. Chinese Journal of Applied Chemistry, ;2009, 26(11): 1264-1268. shu

Preparation and Electromagnetic Properties of PAn/CoC₂O₄ Nanocomposites

1.
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081

Corresponding author: YANG Chun-Ming,
Received Date: 1 November 2008
Available Online: 28 March 2008
Fund Project: 湖南省自然科学基金(06JJ4007) (06JJ4007)湖南省教育厅(06C511)资助项目 (06C511)

Polyaniline/CoC₂O₄ nanocomposite with both electrical and magnetic conductivities was synthesized by means of in-situ growth of polyaniline under different conditions on the surface of nano-cobalt oxalate,which was obtained by low heating solid state reaction.The influences of different reaction conditions including reactants' ratio,mixing methods,type and quantity of surfactants on the morphology and structure and their electromagnetic properties of resulting composites were investigated.The products were characterized by TEM,XRD,and TG analysis techniques.The results indicate that the morphology and structure and their microwave absorbing performance of the as-prepared nanocomposites can be effectively tuned by changing the in-situ complex conditions.The optimal experimental results were as follows:polyaniline/CoC₂O₄ nanocomposite obtained under ultrasonication showed a maximum reflection loss of-28.8 dB at 8.6 GHz with a bandwidth of 3.2 GHz above-10 dB loss.
- polyaniline,
- cobalt oxalate,
- nanocomposite,
- electromagnetic property
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation and Electromagnetic Properties of PAn/CoC₂O₄ Nanocomposites