期刊
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
卷 29, 期 1, 页码 88-93出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2019.03.013
关键词
Co@C/C composites; Thermal decomposition; Nanoscale size; Impedance matching; Microwave absorption
资金
- National Research Foundation of Korea (NRF) - Korean government [2018R1C1B6007453, 2016R1A2B4012847, 2013R1A4A1069528]
- National Research Council of Science and Technology (NST) grant by the Korea government (MSIT) [CRC-15-06-KIGAM]
- DGIST R&D Program of the MSIP [19-BT-02]
- National Research Foundation of Korea [2013R1A4A1069528, 2018R1C1B6007453, 2016R1A2B4012847] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Co@C core-shell nanospheres highly dispersed on carbon supports were rationally designed to improve the microwave absorbing property of the composite material, and fabricated by one pot thermal decomposition and simple annealing process. The Co nanospheres were completely encapsulated with thin carbon shells, which can effectively prevent the oxidation of the Co surface. Additionally, the particle size of Co nanospheres were properly controlled to optimize the electromagnetic property of the composite material. As a result, the light-weight Co@C/C composites with the particle size of 20 nm exhibited much enhanced microwave absorption properties. The improved microwave absorption performance is attributed mainly to the enhanced isotropic ratio and impedance matching of magnetic composites via tuning the Co particle size. Therefore, the well-designed core-shell Co@C composite structure will provide a new insight for the development of high performance microwave absorbers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据