Magnetically Aligned Co-C/MWCNTs Composite Derived from MWCNT-Interconnected Zeolitic Imidazolate Frameworks for a Lightweight and Highly Efficient Electromagnetic Wave Absorber
文献类型：期刊论文
| 作者 | Yin, Yichao1; Liu, Xiaofang1; Wei, Xiaojun2; Li, Ya1; Nie, Xiaoyu1; Yu, Ronghai1; Shui, Jianglan1 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2017-09-13 |
| 卷号 | 9期号:36页码:30850-30861 |
| 关键词 | Electromagnetic Wave Absorption Zeolitic Imidazolate Framework Magnetic Orientation Lightweight High Performance |
| 英文摘要 | Developing lightweight and highly efficient electromagnetic wave (EMW) absorbing materials is crucial but challenging for anti -electromagnetic irradiation and interference. Herein, we used multiwalled carbon nanotubes (MWCNTs) as templates for growth of Co-based zeolitic imidazolate frameworks (ZIFs) and obtained a Co-C/MWCNTs composite by postpyrolysis. The MWCNTs interconnected the ZIF-derived Co-C porous particles, constructing a conductive network for electron hopping and migration. Moreover, the Co-C/MWCNTs composite was aligned in paraffin matrix under an external magnetic field, which led to a stretch of the MWCNTs along the magnetic field direction. Due to the anisotropic permittivity of MWCNTs, the magnetic alignment considerably increased the dielectric loss of the Co-C/MWCNTs composite. Benefiting from the conductive network, the orientation-enhanced dielectric loss, and the synergistic effect between magnetic and dielectric components, the magnetically aligned Co-C/MWCNTs composite exhibited extremely strong EMW absorption, with a minimum reflection loss (RL) of -48.9 dB at a filler loading as low as 15 wt %. The specific RL value (RL/filler loading) of the composite was superior to that of the previous MOF-derived composite absorbers. It is expected that the proposed strategy can be extended to the fabrication of other lightweight and high-performance EMW-absorbing materials. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41253]  |
| 专题 | 化学研究所_其它 |
| 作者单位 | 1.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Yichao,Liu, Xiaofang,Wei, Xiaojun,et al. Magnetically Aligned Co-C/MWCNTs Composite Derived from MWCNT-Interconnected Zeolitic Imidazolate Frameworks for a Lightweight and Highly Efficient Electromagnetic Wave Absorber[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(36):30850-30861. |
| APA | Yin, Yichao.,Liu, Xiaofang.,Wei, Xiaojun.,Li, Ya.,Nie, Xiaoyu.,...&Shui, Jianglan.(2017).Magnetically Aligned Co-C/MWCNTs Composite Derived from MWCNT-Interconnected Zeolitic Imidazolate Frameworks for a Lightweight and Highly Efficient Electromagnetic Wave Absorber.ACS APPLIED MATERIALS & INTERFACES,9(36),30850-30861. |
| MLA | Yin, Yichao,et al."Magnetically Aligned Co-C/MWCNTs Composite Derived from MWCNT-Interconnected Zeolitic Imidazolate Frameworks for a Lightweight and Highly Efficient Electromagnetic Wave Absorber".ACS APPLIED MATERIALS & INTERFACES 9.36(2017):30850-30861. |
入库方式： OAI收割
来源：化学研究所
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