Porous CNTs/Co Composite Derived from Zeolitic Imidazolate Framework: A Lightweight, Ultrathin, and Highly Efficient Electromagnetic Wave Absorber
文献类型：期刊论文
| 作者 | Yin, Yichao1; Liu, Xiaofang1; Wei, Xiaojun2; Yu, Ronghai1; Shui, Jianglan1 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2016-12-21 |
| 卷号 | 8期号:50页码:34686-34698 |
| 关键词 | Zeolitic Imidazolate Framework Cnts/co Electromagnetic Wave Absorption Lightweight Ultrathin |
| 英文摘要 | Porous carbon nanotubes/cobalt nanoparticles (CNTs/Co) composite with dodecahedron morphology was synthesized by in situ pyrolysis of the Co-based zeolitic imidazolate framework in a reducing atmosphere. The morphology and microstructure of the composite can be well tuned by controlling the pyrolysis conditions. At lower pyrolysis temperature, the CNTs/Co composite is composed of well-dispersed Co nanoparticles and short CNT clusters with low graphitic degree. The increase of pyrolysis temperature/time promotes the growth and graphitization of CNTs and leads to the aggregation of Co nanoparticles. The optimized CNTs/Co composite exhibits strong dielectric and magnetic losses as well as a good impedance matching property. Interestingly, the CNTs/Co composite displays extremely strong electromagnetic wave absorption with a maximum reflection loss of -60.4 dB. More importantly, the matching thickness of the absorber is as thin as 1.81 mm, and the filler loading of composite in the matrix is only 20 wt %. The highly efficient absorption is closely related to the well-designed structure and the synergistic effect between CNTs and Co nanoparticles. The excellent absorbing performance together with lightweight and ultrathin thickness endows the CNTs/Co composite with the potential for application in the electromagnetic wave absorbing field. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/37976]  |
| 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. Porous CNTs/Co Composite Derived from Zeolitic Imidazolate Framework: A Lightweight, Ultrathin, and Highly Efficient Electromagnetic Wave Absorber[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(50):34686-34698. |
| APA | Yin, Yichao,Liu, Xiaofang,Wei, Xiaojun,Yu, Ronghai,&Shui, Jianglan.(2016).Porous CNTs/Co Composite Derived from Zeolitic Imidazolate Framework: A Lightweight, Ultrathin, and Highly Efficient Electromagnetic Wave Absorber.ACS APPLIED MATERIALS & INTERFACES,8(50),34686-34698. |
| MLA | Yin, Yichao,et al."Porous CNTs/Co Composite Derived from Zeolitic Imidazolate Framework: A Lightweight, Ultrathin, and Highly Efficient Electromagnetic Wave Absorber".ACS APPLIED MATERIALS & INTERFACES 8.50(2016):34686-34698. |
入库方式： OAI收割
来源：化学研究所
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