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在90 ℃水溶液中采用两步晶体生长法制备出类花状ZnO-CoFe2O4复合纳米管束.ZnO纳米管束的管壁厚度大约为60 nm,管的直径大约为350 nm,CoFe2O4纳米颗粒连续包覆在ZnO纳米管束的表面,CoFe2O4纳米颗粒尺寸小于40 nm, 壳层厚度随着CoFe2O4在ZnO-CoFe2O4
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关键词:
- 类花状 /
- ZnO-CoFe2O4 /
- 纳米管束 /
- 微波吸收剂
Flower-like ZnO-CoFe2O4 nanotube bundle composites are prepared via two-step crystal growth process in water solution at 90 ℃, the wall thicknesses of the ZnO nanotubes are all about 60 nm, inner diameters of the tubes are all about 350 nm, ZnO nanotubes have been coated with CoFe2O4 nanoparticles, and the sizes of CoFe2O4 nanoparticles are below 40 nm. The thickness of CoFe2O4 coating layer increases with the increase of the content of CoFe2O4 in ZnO-CoFe2O4 composites. By using Flower-like ZnO,flower-like ZnO-CoFe2O4 nanotube bundles and CoFe2O4 nanoparticles as absorbents, and phenolic resin as the binder, their electromagnetic wave absorption properties are investigated, and the results show that the microwave wave absorbing performance is evidently improved compared with that of ZnO nanotube bundles and CoFe2O4 particles. When the content of ZnO is 60%, the maximum reflection loss is 28.3 dB.-
Keywords:
- flower-like /
- ZnO-CoFe2O4 /
- nanotube bundles /
- microwave absorbent
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[9] Cao J W, Huang Y H, Zhang Y, Liao Q L, Deng Z Q 2008 Aata Phys. Sin. 57 364 (in Chinese)[曹佳伟、黄运华、张 跃、廖庆亮、邓战强 2008 57 3641]
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[12] Gong M G, Xu X L, Yang Z, Liu Y S, Liu L 2010 Chin. Phys. B 19 056701
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[15] Yu Q J, Fu W Y, Cui L Y, Yang H B, Guang T Z 2007 J. Phys. Chem. C 111 17521
[16] Yuan H T, Zhang Y, Gu J H 2004 Aata Phys. Sin. 53 646 (in Chinese)[袁洪涛、张 跃、谷景华 2004 53 646]
[17] Cheng X W, Li X, Gao Y L, Yu Z, Long X, Liu Y 2009 Aata Phys. Sin. 58 2018(in Chinese)[程兴旺、李 祥、高院玲、于 宙、龙 雪、刘 颖 2009 58 2018]
[18] Lewis T J 2005 J. Phys. D: Appl. Phys. 38 202
[19] Kim S, Yoon Y J 2005 J. Appl. Phys. 97 10F905
[20] Miles P A, Westphal W B 1957 Rev. Mod. Phys. 29 279
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[1] Wang J, Li H F, Huang Y H, Yu H B, Zhang Y 2010 Aata Phys. Sin. 59 1946 (in Chinese)[王 建、李会峰、黄运华、余海波、张 跃 2010 59 1946]
[2] Xu P, Han X, Jiang J J, Wang X H, Li X D, Wen A H 2007 J. Phys. Chem. C 111 12603
[3] Ma Q, Jiang J J, Bie S W, Tian B, Liang P, He H H 2009 Chin. Phys. B 18 2063
[4] Miquel H G, Kurlyandskaya G V 2008 Chin. Phys. B 17 1430
[5] Kang Y Q, Cao M S, Yuan J, Fang X Y 2010 Chin. Phys. B 19 017701
[6] Deng L W, Jiang J J, Feng Z K, Zhang X C, He H H 2004 Aata Phys. Sin. 53 4359(in Chinese) [邓联文、江建军、冯则坤、张秀成、何华辉 2004 53 4359]
[7] Wan J, Wang X 2005 Appl. Phys. Lett. 86 122501
[8] Fu W Y, Liu S K 2007 J. Magn. Magn. Mater. 316 54
[9] Cao J W, Huang Y H, Zhang Y, Liao Q L, Deng Z Q 2008 Aata Phys. Sin. 57 364 (in Chinese)[曹佳伟、黄运华、张 跃、廖庆亮、邓战强 2008 57 3641]
[10] Dai Y, Zhang Y, Li Q K, Nan C W 2002 Chem. Phys. Lett. 358 8
[11] Ma K, Li H, Zhang H, Xu X L, Gong M G, Yang Z 2009 Chin. Phys. B 18 1942
[12] Gong M G, Xu X L, Yang Z, Liu Y S, Liu L 2010 Chin. Phys. B 19 056701
[13] Li H F, Huang Y H, Zhang Y, Gao X X, Zhao J, Wang J 2009 Aata Phys. Sin. 58 2702 (in Chinese)[李会峰、黄运华、张 跃、高祥熙、赵 婧、王 建 2009 58 2702]
[14] Han X H, Wang G Z, Jie J S, Choy W C H, Luo Y, Yuk T I, Hou J G 2005 J. Phys. Chem. B 109 2733
[15] Yu Q J, Fu W Y, Cui L Y, Yang H B, Guang T Z 2007 J. Phys. Chem. C 111 17521
[16] Yuan H T, Zhang Y, Gu J H 2004 Aata Phys. Sin. 53 646 (in Chinese)[袁洪涛、张 跃、谷景华 2004 53 646]
[17] Cheng X W, Li X, Gao Y L, Yu Z, Long X, Liu Y 2009 Aata Phys. Sin. 58 2018(in Chinese)[程兴旺、李 祥、高院玲、于 宙、龙 雪、刘 颖 2009 58 2018]
[18] Lewis T J 2005 J. Phys. D: Appl. Phys. 38 202
[19] Kim S, Yoon Y J 2005 J. Appl. Phys. 97 10F905
[20] Miles P A, Westphal W B 1957 Rev. Mod. Phys. 29 279
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