MXenes公司
材料科学
剥脱关节
氢氟酸
扫描电子显微镜
透射电子显微镜
化学工程
蚀刻(微加工)
最大相位
复合材料
纳米技术
图层(电子)
陶瓷
冶金
石墨烯
工程类
作者
Aihu Feng,Yun Yu,Yong Wang,Feng Jiang,Yu Yang,Le Mi,Lixin Song
标识
DOI:10.1016/j.matdes.2016.10.053
摘要
MXene, a new family of 2D materials, possesses excellent electrical conductivity and hydrophilicity. To date, the majority of MXenes are only successfully produced by exfoliating the MAX phases with high concentration hydrofluoric acid (HF). In this study, the 2D MXene Ti3C2 with larger interplanar spacing was successfully obtained by etching Ti3AlC2 with bifluoride (NaHF2, KHF2, NH4HF2) in single-stage process. The morphology, structure and element composition of prepared Ti3C2 samples were characterized by scanning electron smicroscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS). The synthesis mechanism of Ti3C2 was elaborately demonstrated. The possible reaction equations between Ti3AlC2 and different bifluorides were generalized, indicating the formation of hydrosoluble by-products of Na3AlF6, K3AlF6 and (NH4)3AlF6. This work presents a safely effective method to synthesize the 2D nanocrystals MXene.
科研通智能强力驱动
Strongly Powered by AbleSci AI