Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Effect of hydrogenation on the microwave absorption properties of BaTiO3 nanoparticles | |
Tian, L. H.; X. D. Yan; J. L. Xu; P. Wallenmeyer; J. Murowchick; L. Liu and X. B. Chen | |
2015 | |
发表期刊 | Journal of Materials Chemistry A
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卷号 | 3期号:23页码:12550-12556 |
摘要 | Microwave absorbing materials (MAMs) have numerous important applications in electronic communications, signal protection, radar dodging, etc. Although it has been proposed as a promising MAM, BaTiO3 has a high reflection coefficient at the interface with air, causing a large reflection. Thus, its efficiency of microwave absorption is not satisfactory. Here, we report that hydrogenation has largely improved the microwave absorption of BaTiO3 nanoparticles. Hydrogenation is performed on BaTiO3 nanoparticles by treating pristine BaTiO3 nanoparticles at 700 degrees C for 4 hours in a pure H-2 environment. The enhanced microwave absorption efficiency with a reflection loss value (-36.9 dB) is attributed to the increased resonance of polar rotations with the incident electromagnetic field which is amplified by the increased interfacial polarization caused by the built-in electrical field along the boundaries between different grains created within these nanoparticles. |
收录类别 | SCI ; EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/55431 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Tian, L. H.,X. D. Yan,J. L. Xu,et al. Effect of hydrogenation on the microwave absorption properties of BaTiO3 nanoparticles[J]. Journal of Materials Chemistry A,2015,3(23):12550-12556. |
APA | Tian, L. H.,X. D. Yan,J. L. Xu,P. Wallenmeyer,J. Murowchick,&L. Liu and X. B. Chen.(2015).Effect of hydrogenation on the microwave absorption properties of BaTiO3 nanoparticles.Journal of Materials Chemistry A,3(23),12550-12556. |
MLA | Tian, L. H.,et al."Effect of hydrogenation on the microwave absorption properties of BaTiO3 nanoparticles".Journal of Materials Chemistry A 3.23(2015):12550-12556. |
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