Rapid mass production of two-dimensional metal oxides and hydroxides via the molten salts method

Zhimi Hu, Xu Xiao, Huanyu Jin, Tianqi Li, Ming Chen, Zhun Liang, Zhengfeng Guo, Jia Li, Jun Wan, Liang Huang, Yanrong Zhang, Guang Feng and Jun Zhou ()
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Zhimi Hu: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Xu Xiao: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Huanyu Jin: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Tianqi Li: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Ming Chen: State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology
Zhun Liang: State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology
Zhengfeng Guo: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Jia Li: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Jun Wan: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Liang Huang: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Yanrong Zhang: Environmental Science Research Institute, Huazhong University of Science and Technology
Guang Feng: State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology
Jun Zhou: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Because of their exotic electronic properties and abundant active sites, two-dimensional (2D) materials have potential in various fields. Pursuing a general synthesis methodology of 2D materials and advancing it from the laboratory to industry is of great importance. This type of method should be low cost, rapid and highly efficient. Here, we report the high-yield synthesis of 2D metal oxides and hydroxides via a molten salts method. We obtained a high-yield of 2D ion-intercalated metal oxides and hydroxides, such as cation-intercalated manganese oxides (Na0.55Mn2O4·1.5H2O and K0.27MnO2·0.54H2O), cation-intercalated tungsten oxides (Li2WO4 and Na2W4O13), and anion-intercalated metal hydroxides (Zn5(OH)8(NO3)2·2H2O and Cu2(OH)3NO3), with a large lateral size and nanometre thickness in a short time. Using 2D Na2W4O13 as an electrode, a high performance electrochemical supercapacitor is achieved. We anticipate that our method will enable new path to the high-yield synthesis of 2D materials for applications in energy-related fields and beyond.

Date: 2017
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DOI: 10.1038/ncomms15630

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