TY - JOUR
T1 - Ultra-light MXene/CNTs/PI aerogel with neat arrangement for electromagnetic wave absorption and photothermal conversion
AU - Cui, Yuhong
AU - Yang, Ke
AU - Zhang, Fangrong
AU - Lyu, Yanting
AU - Zhang, Qiuyu
AU - Zhang, Baoliang
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/7
Y1 - 2022/7
N2 - The assembly of Ti3C2Tx MXene into porous three-dimensional (3D) structures is of great significance for the design of MXene-based electromagnetic wave (EMW) absorbing materials. However, the construction of aerogels alone is challenging due to the weak interlayer interaction between the MXene nanosheets. In addition, MXene with high conductivity is often detrimental to the dissipation of EMW. Here, we introduce polyimide (PI) as the “chemical glue” and carbon nanotubes (CNTs) as the impedance mismatch improvement agent, and construct 3D MXene/CNTs/PI aerogel. By controlling the growth of ice peaks, holes are made on the surface. Due to the excellent impedance matching and special microstructure, MXene/CNTs/PI has a minimum reflection loss (RLmin) of −50.03 dB@13.7 GHz, and an effective absorption bandwidth (EAB) of 5.6 GHz. Meanwhile, MXene/CNTs/PI also exhibits significant photothermal conversion performance, which can effectively absorb sunlight and store, convert and utilize it. Therefore, the multifunctional MXene/CNTs/PI has broad application prospects.
AB - The assembly of Ti3C2Tx MXene into porous three-dimensional (3D) structures is of great significance for the design of MXene-based electromagnetic wave (EMW) absorbing materials. However, the construction of aerogels alone is challenging due to the weak interlayer interaction between the MXene nanosheets. In addition, MXene with high conductivity is often detrimental to the dissipation of EMW. Here, we introduce polyimide (PI) as the “chemical glue” and carbon nanotubes (CNTs) as the impedance mismatch improvement agent, and construct 3D MXene/CNTs/PI aerogel. By controlling the growth of ice peaks, holes are made on the surface. Due to the excellent impedance matching and special microstructure, MXene/CNTs/PI has a minimum reflection loss (RLmin) of −50.03 dB@13.7 GHz, and an effective absorption bandwidth (EAB) of 5.6 GHz. Meanwhile, MXene/CNTs/PI also exhibits significant photothermal conversion performance, which can effectively absorb sunlight and store, convert and utilize it. Therefore, the multifunctional MXene/CNTs/PI has broad application prospects.
KW - A. Multifunctional composites
KW - B. Microstructures
KW - E. Assembly
KW - TiCT MXene
UR - https://www.scopus.com/pages/publications/85130362865
U2 - 10.1016/j.compositesa.2022.106986
DO - 10.1016/j.compositesa.2022.106986
M3 - 文章
AN - SCOPUS:85130362865
SN - 1359-835X
VL - 158
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106986
ER -