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Achieving Macroscopic V4C3Tx MXene by Selectively Etching Al from V4AlC3 Single Crystals

文献类型：期刊论文

作者Wang, Dong2,4; Si, Jianguo2; Lin, Shuai4; Zhang, Ranran3; Huang, Yanan4; Yang, Jie4; Lu, Wenjian4; Zhu, Xuebin4; Sun, Yuping1,3,4
刊名INORGANIC CHEMISTRY
出版日期2020-03-02
卷号59
ISSN号0020-1669
DOI10.1021/acs.inorgchem.9b03625
通讯作者Lin, Shuai(linshuai17@issp.ac.cn) ; Lu, Wenjian(wjlu@issp.ac.cn)
英文摘要Hexagon-like MAX-phase V4AlC3 single crystals grown by a plane high-temperature flux method were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDX). We report, for the first time, the first-order Raman spectra (RS) of V4AlC3 single crystals experimentally and theoretically. Via the combination of the results of thermogravimetric analysis, differential scanning calorimetry, XRD, FE-SEM, and EDX, the oxidation performance and mechanism of V4AlC3 single crystals between 300 and 1473 K in air were clarified. Importantly, we carefully investigated the room-temperature corrosion behaviors of V4AlC3 single crystals in concentrated acids [HCl, H2SO4, hydrofluoric acid (HF), and HNO3] and alkalis (NaOH and KOH). V4AlC3 single crystals are stable in concentrated HCl, H2SO4, and NaOH but unstable and even dissolved completely in concentrated KOH and HNO3. In particular, our XRD, RS, FE-SEM, and EDX results have confirmed that HF can dissolve the Al layers of V4AlC3 single crystals but cannot corrode V4C3 layers at room temperature, which eventually led to the formation of macroscopic V4C3Tx MXene. This reported approach of macro-sized V4C3Tx MXene can be adapted for obtaining other macroscopic MXenes and will inspire plenty of theoretical and experimental investigations to explore their intrinsic nature and applications, especially for electronic and photonic applications.
WOS关键词TEMPERATURE SOLUTION GROWTH ; 1ST-ORDER RAMAN-SCATTERING ; MAX-PHASES ; CORROSION BEHAVIOR ; NEUTRON-IRRADIATION ; M(N+1)AX(N) PHASES ; OXIDATION BEHAVIOR ; GRAIN-SIZE ; TI3ALC2 ; CR2ALC
资助项目National Natural Science Foundation of China[51301165] ; National Natural Science Foundation of China[11774351] ; National Natural Science Foundation of China[U1832115] ; Chinese Academy of Sciences' Large -Scale Scientific Facility[U1832115] ; National Key R&D Program of China[2016YFA0300404] ; National Key R&D Program of China[2016YFA0401801] ; National Key R&D Program of China[2014CB931704] ; Foundation for director of institute of solid state, Chinese Academy of Sciences[2019DFS01]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000518088800070
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences' Large -Scale Scientific Facility ; National Key R&D Program of China ; Foundation for director of institute of solid state, Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103493]  
专题中国科学院合肥物质科学研究院
通讯作者Lin, Shuai; Lu, Wenjian
作者单位1.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Dong,Si, Jianguo,Lin, Shuai,et al. Achieving Macroscopic V4C3Tx MXene by Selectively Etching Al from V4AlC3 Single Crystals[J]. INORGANIC CHEMISTRY,2020,59.
APA Wang, Dong.,Si, Jianguo.,Lin, Shuai.,Zhang, Ranran.,Huang, Yanan.,...&Sun, Yuping.(2020).Achieving Macroscopic V4C3Tx MXene by Selectively Etching Al from V4AlC3 Single Crystals.INORGANIC CHEMISTRY,59.
MLA Wang, Dong,et al."Achieving Macroscopic V4C3Tx MXene by Selectively Etching Al from V4AlC3 Single Crystals".INORGANIC CHEMISTRY 59(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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