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Title: Molecular Scaffold Growth of Two-Dimensional, Strong Interlayer-Bonding-Layered Materials

Abstract

Currently, most two-dimensional (2D) materials that are of interest to emergent applications have focused on van der Waals–layered materials (VLMs) because of the ease with which the layers can be separated (e.g., graphene). Strong interlayer-bonding-layered materials (SLMs) in general have not been thoroughly explored, and one of the most critical present issues is the huge challenge of their preparation, although their physicochemical property transformation should be richer than VLMs and deserves greater attention. MAX phases are a classical kind of SLM. However, limited to the strong interlayer bonding, their corresponding 2D counterparts have never been obtained, nor has there been investigation of their fundamental properties in the 2D limitation. Here, the authors develop a controllable bottom-up synthesis strategy for obtaining 2D SLMs single crystal through the design of a molecular scaffold with Mo 2GaC, which is a typical kind of MAX phase, as an example. The superconducting transitions of Mo 2GaC at the 2D limit are clearly inherited from the bulk, which is consistent with Berezinskii–Kosterlitz–Thouless behavior. The authors believe that their molecular scaffold strategy will allow the fabrication of other high-quality 2D SLMs single crystals, which will further expand the family of 2D materials and promote their future application.

Authors:
 [1];  [1];  [2];  [1];  [3]; ORCiD logo [4];  [5]; ORCiD logo [4];  [5]; ORCiD logo [4];  [5]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [4];  [1];  [1];  [1];  [6];  [2];  [1]
  1. Wuhan Univ., Wuhan (China)
  2. Fudan Univ., Shanghai (China)
  3. IFW Dresden, Dresden (Germany)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Jilin Univ., Changchun (China)
  6. IFW Dresden, Dresden (Germany); Soochow Univ., Suzhou (China); Polish Academy of Sciences, Zabrze (Poland)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1507877
Grant/Contract Number:  
AC05-00OR22725; 1507877; 21473124; 11404131; 11674121
Resource Type:
Accepted Manuscript
Journal Name:
CCS Chemistry
Additional Journal Information:
Journal Volume: 1; Journal Issue: 1; Journal ID: ISSN 2096-5745
Publisher:
Chinese Chemical Society Publishing
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; molecular scaffold; strong interlayer bonding; chemical vapor deposition; 2D MAX phase crystals

Citation Formats

Zeng, Mengqi, Chen, Yunxu, Zhang, Enze, Li, Jiaxu, Mendes, Rafael G., Sang, Xiahan, Luo, Shulin, Ming, Wenmei, Fu, Yuhao, Du, Mao -Hua, Zhang, Lijun, Parker, David S., Unocic, Raymond R., Xiao, Kai, Wang, Chenglai, Zhang, Tao, Xiao, Yao, Rümmeli, Mark H., Xiu, Faxian, and Fu, Lei. Molecular Scaffold Growth of Two-Dimensional, Strong Interlayer-Bonding-Layered Materials. United States: N. p., 2019. Web. doi:10.31635/ccschem.019.20180003.
Zeng, Mengqi, Chen, Yunxu, Zhang, Enze, Li, Jiaxu, Mendes, Rafael G., Sang, Xiahan, Luo, Shulin, Ming, Wenmei, Fu, Yuhao, Du, Mao -Hua, Zhang, Lijun, Parker, David S., Unocic, Raymond R., Xiao, Kai, Wang, Chenglai, Zhang, Tao, Xiao, Yao, Rümmeli, Mark H., Xiu, Faxian, & Fu, Lei. Molecular Scaffold Growth of Two-Dimensional, Strong Interlayer-Bonding-Layered Materials. United States. doi:10.31635/ccschem.019.20180003.
Zeng, Mengqi, Chen, Yunxu, Zhang, Enze, Li, Jiaxu, Mendes, Rafael G., Sang, Xiahan, Luo, Shulin, Ming, Wenmei, Fu, Yuhao, Du, Mao -Hua, Zhang, Lijun, Parker, David S., Unocic, Raymond R., Xiao, Kai, Wang, Chenglai, Zhang, Tao, Xiao, Yao, Rümmeli, Mark H., Xiu, Faxian, and Fu, Lei. Tue . "Molecular Scaffold Growth of Two-Dimensional, Strong Interlayer-Bonding-Layered Materials". United States. doi:10.31635/ccschem.019.20180003. https://www.osti.gov/servlets/purl/1507877.
@article{osti_1507877,
title = {Molecular Scaffold Growth of Two-Dimensional, Strong Interlayer-Bonding-Layered Materials},
author = {Zeng, Mengqi and Chen, Yunxu and Zhang, Enze and Li, Jiaxu and Mendes, Rafael G. and Sang, Xiahan and Luo, Shulin and Ming, Wenmei and Fu, Yuhao and Du, Mao -Hua and Zhang, Lijun and Parker, David S. and Unocic, Raymond R. and Xiao, Kai and Wang, Chenglai and Zhang, Tao and Xiao, Yao and Rümmeli, Mark H. and Xiu, Faxian and Fu, Lei},
abstractNote = {Currently, most two-dimensional (2D) materials that are of interest to emergent applications have focused on van der Waals–layered materials (VLMs) because of the ease with which the layers can be separated (e.g., graphene). Strong interlayer-bonding-layered materials (SLMs) in general have not been thoroughly explored, and one of the most critical present issues is the huge challenge of their preparation, although their physicochemical property transformation should be richer than VLMs and deserves greater attention. MAX phases are a classical kind of SLM. However, limited to the strong interlayer bonding, their corresponding 2D counterparts have never been obtained, nor has there been investigation of their fundamental properties in the 2D limitation. Here, the authors develop a controllable bottom-up synthesis strategy for obtaining 2D SLMs single crystal through the design of a molecular scaffold with Mo 2GaC, which is a typical kind of MAX phase, as an example. The superconducting transitions of Mo 2GaC at the 2D limit are clearly inherited from the bulk, which is consistent with Berezinskii–Kosterlitz–Thouless behavior. The authors believe that their molecular scaffold strategy will allow the fabrication of other high-quality 2D SLMs single crystals, which will further expand the family of 2D materials and promote their future application.},
doi = {10.31635/ccschem.019.20180003},
journal = {CCS Chemistry},
number = 1,
volume = 1,
place = {United States},
year = {2019},
month = {3}
}

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