TY - JOUR
T1 - Heterogeneous films assembled from Ti3C2Tx MXene and porous double-layered carbon nanosheets for high-performance electromagnetic interference shielding
AU - Li, Baosong
AU - Luo, Shaohong
AU - Anwer, Shoaib
AU - Chan, Vincent
AU - Liao, Kin
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided by the Khalifa University of Science and Technology under Award No. CIRA 2018-16 and use of the Khalifa University Core Nanocharacterization Facilities (CNCF).
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/10/15
Y1 - 2022/10/15
N2 - Two-dimensional (2D) materials with ideal flexibility, lightweight, and high electrical conductivity can serve as ideal candidates for electromagnetic interference (EMI) shielding in next-generation portable and wearable electronic devices. However, the constrain in physical properties of homogeneous 2D material limits their potential for achieving high-performance EMI shielding in most demanding devices. Combining different 2D materials into highly engineered composites can effectively overcome the limitations of individual 2D materials by capitalizing on the additive effect of the merits possessed by multiple types of 2D materials. Here, 2D porous double-layered carbon nanosheets are prepared and assembled with Ti3C2Tx MXene to form heterogeneous films with a layered structure. The heterogeneous films present desirable multi-functions including high conductivity, controllable thickness, and high stability. The heterogeneous film containing 10 wt% of porous double-layered carbon nanosheets shows the highest EMI shielding effectiveness of 52.8 dB, and the specific shielding effectiveness of 33143 dB cm2 g−1, which is mainly attributed to the unique porous layer-by-layer architecture and the resultant enhancement in the absorption of electromagnetic wave. Moreover, the heterogeneous film exhibits remarkable environmental stability, fueled by decreased hydrophilicity. This heterogeneous architecture could pave a new way for addressing the next-generation challenges of EMI shielding.
AB - Two-dimensional (2D) materials with ideal flexibility, lightweight, and high electrical conductivity can serve as ideal candidates for electromagnetic interference (EMI) shielding in next-generation portable and wearable electronic devices. However, the constrain in physical properties of homogeneous 2D material limits their potential for achieving high-performance EMI shielding in most demanding devices. Combining different 2D materials into highly engineered composites can effectively overcome the limitations of individual 2D materials by capitalizing on the additive effect of the merits possessed by multiple types of 2D materials. Here, 2D porous double-layered carbon nanosheets are prepared and assembled with Ti3C2Tx MXene to form heterogeneous films with a layered structure. The heterogeneous films present desirable multi-functions including high conductivity, controllable thickness, and high stability. The heterogeneous film containing 10 wt% of porous double-layered carbon nanosheets shows the highest EMI shielding effectiveness of 52.8 dB, and the specific shielding effectiveness of 33143 dB cm2 g−1, which is mainly attributed to the unique porous layer-by-layer architecture and the resultant enhancement in the absorption of electromagnetic wave. Moreover, the heterogeneous film exhibits remarkable environmental stability, fueled by decreased hydrophilicity. This heterogeneous architecture could pave a new way for addressing the next-generation challenges of EMI shielding.
KW - Double-layered carbon nanosheet
KW - Electromagnetic interference shielding
KW - Heterogeneous film
KW - TiCT MXene
UR - http://www.scopus.com/inward/record.url?scp=85132728919&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2022.153944
DO - 10.1016/j.apsusc.2022.153944
M3 - Article
AN - SCOPUS:85132728919
SN - 0169-4332
VL - 599
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 153944
ER -