@article{Li2024, 
author = {Xue Li and Zhenying Huang and Hongjie Wang and Wenqiang Hu and Weici Zhuang and Qun Yu and Youbo Wu and Qianwen Sun and Yang Zhou and Guangjin Chen and Junji Mou and Zhexuan Zhang},
title = {Stabilising intrinsic room-temperature ferromagnetic two-dimensional semimetallic Cr2CTx MXene by epitaxial self-intercalation of H2O-etched Cr2(AlLi)C},
year = {2024},
journal = {Journal of Advanced Ceramics},
volume = {13},
number = {10},
pages = {1546-1552},
keywords = {2D MXene, room-temperature ferromagnetism, H2O-etched Cr2(AlLi)C, epitaxial self-intercalation, semimetal},
url = {https://www.sciopen.com/article/10.26599/JAC.2024.9220955},
doi = {10.26599/JAC.2024.9220955},
abstract = {Physical properties, such as electrochemical and electromagnetic properties, of two-dimensional MXenes can be improved by enhancing their stability. However, MXenes fabricated via acid etching contain defects, which affect their physical properties. In this study, a method to effectively remove Al residues using only water during MXene fabrication while maintaining structural stability is proposed. The fabrication and intercalation of MXenes are controlled via epitaxial self-intercalation of H2O-etched Cr2(AlLi)C. On the basis of this mechanism, the room-temperature ferromagnetism of two-dimensional few-layered Cr2CTx MXenes, which has a specific saturation magnetization of ~0.26 emu/g and a Curie temperature of > 353 K, is experimentally verified. The calculated electronic band structure implies that the semimetal Cr2CTx MXene has a band gap of 0.75 eV. This study opens new possibilities for the research and applications of industrial-scale manufacturing of MXenes and 2D semiconductors.}
}