文献类型：期刊文献

英文题名：MOF derived porous Ni/Co@C nanocomposite as electromagnetic wave absorber with optimized impedance matching

作者：Qin, Lan Liu, Shan Qin, Shuhao Liao, Longfeng He, Min Yu, Jie

第一作者：Qin, Lan

通信作者：He, M[1];Yu, J[1]

机构：[1]Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China;[2]Anshun Univ, Sch Chem & Chem Engn, Anshun 561000, Guizhou, Peoples R China;[3]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;[4]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Peoples R China

第一机构：Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China.

年份：2022

卷号：33

外文期刊名：COMPOSITES COMMUNICATIONS

收录：;Scopus(收录号：2-s2.0-85131348773);WOS:【SCI-EXPANDED(收录号:WOS:000846858200004)】；

基金：The authors acknowledge financial support from the National Natural Science Foundation of China (No. 52163009), the Youth Growth S&T Personnel Foundation of Guizhou Education Department (KY [2022]037), and the Academic Novice Cultivation and Innovative Exploration Project (GZLGXM-22) supported by Guizhou Provincial Science and Technology Department.

语种：英文

外文关键词：Electromagnetic wave absorber; Impedance matching; Porous nanocomposite; MOF

摘要：The performance and effective absorbing bandwidth (EAB) of electromagnetic wave (EMW) absorbers depend largely on electromagnetic impedance matching. Herein an efficient strategy for tuning impedance matching is reported. Porous Ni/Co@C nanocomposites with adjustable pore sizes were synthesized by varying calcination temperature. The obtained Ni/Co@C have EMW absorption capacity, adjusted impedance matching, and multiple scattering. Impedance matching is optimized to achieve super reflection loss (RL) of Ni/Co@C-600, while broaden the EBA of Ni/Co@C-650. Ni/Co@C-650 nanocomposite has the optimum RL of -66.3 dB with a thickness of 2.0 mm, and the EAB reaches 6.0 GHz at 2.3 mm thickness. Ni/Co@C-600 has an optimum RL of -71.9 dB at 8.9 GHz. This work provided a facile strategy for the design of porous nanocomposite with improving impedance matching.