Electromagnetic wave absorption properties of Ti3C2Tx nanosheets modified with in-situ growth carbon nanotubes

CNTs/Ti(3)C(2)Tx hybrids are prepared with carbon nanotubes (CNTs) are in-situ grown on the surface of the Ti(3)C(2)Tx nanosheets by using the method of chemical vapor deposition. Internal effects between micromorphology and interface polarization have been research. The results show that the dielectric properties of the CNTs/Ti(3)C(2)Tx hybrids increase with the increase of the length of CNTs, the growth time is a direct determinant of the length of CNTs. The factors of the micro capacitors formed by CNTs, the dipoles formed by defects on CNTs greatly increase the dielectric loss. When the growth time reaches 45 min and the thickness of the absorber is 2.0 mm, the minimum reflection coefficient is similar to 60.9 dB in X-band, the absorption bandwidth reaches 2.9 GHz. The CNTs/Ti(3)C(2)Tx hybrid shows excellent electromagnetic wave absorption properties. (C) 2021 Elsevier Ltd. All rights reserved.

Automated summary

In this study, CNTs/Ti(3)C(2)Tx hybrids were prepared using chemical vapor deposition, with an investigation into the internal effects between micromorphology and interface polarization. The dielectric properties of the hybrids were found to increase with the length of CNTs, with growth time being a direct determinant of CNTs length. Additionally, the micro capacitors and dipoles formed by defects on CNTs greatly increased the dielectric loss.