期刊
ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 41, 页码 38046-38054出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b12550
关键词
MXene; carbon nanotube; hybrid aerogel; three-dimensional foam; electromagnetic wave shielding
资金
- KIST-KAIST Joint research lab program - Korea Institute of Science and Technology (KIST) [2 V05750]
- KU-KIST Research, Young Fellow program - Korea Institute of Science and Technology (KIST)
- KIST Internal Research program - Korea Institute of Science and Technology (KIST)
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Science, ICT, and Future Planning [2017R1A2B3006469, 2019M3D1A2014004]
- Fundamental R&D Program for Core Technology of Materials [10077545]
- Industrial Strategic Technology Development Program - Ministry of Knowledge Economy
- Construction Technology Research Project - Ministry of Land, Infrastructure, and Transport, Republic of Korea [18SCIP-B146646-01]
- MuRata Manufacturing Co., Ltd., Japan
Lightweight materials with high electrical conductivity and robust mechanical properties are highly desirable for electromagnetic interference (EMI) shielding in modern portable and highly integrated electronics. Herein, a three-dimensional (3D) porous Ti3C2Tx/carbon nanotube (CNT) hybrid aerogel was fabricated via a bidirectional freezing method for lightweight EMI shielding application. The synergism of the lamellar and porous structure of the MXene/CNT hybrid aerogels contributed extensively to their excellent electrical conductivity (9.43 S cm(-1)) and superior electromagnetic shielding effectiveness (EMI SE) value of 103.9 dB at 3 mm thickness at the X-band frequency, the latter of which is the best value reported for synthetic porous nanomaterials. The CNT reinforcement in the MXene/CNT hybrid aerogels enhanced the mechanical robustness and increased the compressional modulus by 9661% relative to that of the pristine MXene aerogel. The hybrid aerogel with high electrical conductivity, good mechanical strength, and superior EMI shielding performance is a promising material for inhibiting EMI pollution.
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