Hybrid organic–inorganic two-dimensional metal carbide MXenes with amido- and imido-terminated surfaces
Hybrid organic–inorganic two-dimensional metal carbide MXenes with amido- and imido-terminated surfaces
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DOI：
10.1038/s41557-023-01288-w
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发表时间：
2023-05
期刊：
影响因子：
21.8
通讯作者：
Chenkun Zhou;Di Wang;F. Lagunas;Benjamin A Atterberry;Mingyuan Lei;Huicheng Hu;Zirui Zhou;A. Filatov;D. Jiang;Aaron J. Rossini;R. Klie;D. Talapin
中科院分区：
文献类型：
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作者：
Chenkun Zhou;Di Wang;F. Lagunas;Benjamin A Atterberry;Mingyuan Lei;Huicheng Hu;Zirui Zhou;A. Filatov;D. Jiang;Aaron J. Rossini;R. Klie;D. Talapin
二维（2D）过渡金属碳化物和氮化物（MXenes）将二维无机晶体的电子和机械性能与化学修饰表面相结合，为界面的基础和应用研究提供了理想的平台。无机小配体对MXene的功能化已经取得了很好的进展，但各种有机基团与MXene表面的共价键的研究相对较少。本文合成了一类杂化MXenes (h-MXenes)，通过卤素端接MXenes与去质子化有机胺反应，在有机和无机部分之间形成胺和亚胺键。由此产生的杂化结构将有机分子的可定制性与电子连通性和无机二维材料的其他特性结合起来。描述h-MXene的结构需要整合配位化学、自组装单层和表面科学的概念。h-MXenes的光学性质揭示了有机和无机组分之间的相干耦合。h-MXenes也表现出优异的抗水解稳定性。
Two-dimensional (2D) transition-metal carbides and nitrides (MXenes) combine the electronic and mechanical properties of 2D inorganic crystals with chemically modifiable surfaces, which provides an ideal platform for both fundamental and applied studies of interfaces. Good progress has been achieved in the functionalization of MXenes with small inorganic ligands, but relatively little work has been reported on the covalent bonding of various organic groups to MXene surfaces. Here we synthesize a family of hybrid MXenes (h-MXenes) that incorporate amido- and imido-bonding between organic and inorganic parts by reacting halogen-terminated MXenes with deprotonated organic amines. The resulting hybrid structures unite tailorability of organic molecules with electronic connectivity and other properties of inorganic 2D materials. Describing the structure of h-MXene necessitates the integration of concepts from coordination chemistry, self-assembled monolayers and surface science. The optical properties of h-MXenes reveal coherent coupling between the organic and inorganic constituents. h-MXenes also exhibit superior stability against hydrolysis.