| 彭志华,龚学余,彭延峰,贾鹏,刘桂华,郭燕春.碳纳米管中氢等离子体的介电特性及微波吸收机理研究[J].南华大学学报(自然科学版),2010,24(4):28~32.[PENG Zhi-hua,GONG Xue-yu,PENG Yan-feng,JIA Peng,LIU Gui-ping,GUO Yan-chun.Investigation of the Dielectric Properties and Microwave Absorbing Mechanisms of Hydrogen Plasma in Carbon Nanotubes[J].Journal of University of South China(Science and Technology),2010,24(4):28~32.] |
| 碳纳米管中氢等离子体的介电特性及微波吸收机理研究 |
| Investigation of the Dielectric Properties and Microwave Absorbing Mechanisms of Hydrogen Plasma in Carbon Nanotubes |
| 投稿时间：2010-07-20 |
| DOI： |
| 中文关键词: 碳纳米管 氢等离子体 介电特性 微波吸收 |
| 英文关键词:carbon nanotubes hydrogen plasma dielectric properties microwave absorption |
| 基金项目:湖南省科技计划基金资助项目（2010FJ4092） |
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| 中文摘要: |
| 运用双流体理论和唯象模型,导出了碳纳米管中氢等离子体的复介电常数和微波吸收系数,构建了铁催化高压歧化生成的碳纳米管中氢等离子体的微波吸收模型,从理论上证明了铁催化高压歧化生成的碳纳米管氢等离子体中的带电粒子对微波产生的碰撞吸收是其主要微波吸收机理,揭示了铁催化高压歧化生成的碳纳米管对2.45 GHz的微波产生强烈吸收的物理机制. |
| 英文摘要: |
| Using double-fluid theory and phenomenological model,the complex dielectric constant,the absorption coefficient of hydrogen plasma in carbon nanotubes (CNTs ) at microwave frequencies are deduced.Then a microwave absorption model of hydrogen plasma in CNTs,which is produced by iron-catalyzed high-pressure disproportionation (HiPco),is developed.It is theoretically proved that microwave energy loss is predominantly caused by the collisional absorption of the charge particle in hydrogen plasma of HiPco CNTs.The physical mechanisms of strong microwave absorption (around 2.45 GHz) by HiPco CNTs are revealed in this paper. |
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