Low temperature synthesis of plasmonic molybdenum nitride nanosheets for surface enhanced Raman scattering

Haomin Guan, Wencai Yi, Tao Li, Yahui Li, Junfang Li, Hua Bai and Guangcheng Xi ()
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Haomin Guan: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine
Wencai Yi: Qufu Normal University
Tao Li: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine
Yahui Li: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine
Junfang Li: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine
Hua Bai: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine
Guangcheng Xi: Institute of Industrial and Consumer Product Safety, Chinese Academy of Inspection and Quarantine

Nature Communications, 2020, vol. 11, issue 1, 1-9

Abstract: Abstract Molybdenum nitride (δ–MoN) is an important functional material due to its impressive catalytic, energy storage, and superconducting properties. However, the synthesis of δ–MoN usually requires extremely harsh conditions; thus, the insight into δ−MoN is far behind that of oxides and sulfides of molybdenum. Herein, we report that ultrathin δ−MoN nanosheets are prepared at 270 °C and 12 atm. WN, VN, and TiN nanosheets are also synthesized by this method. The δ−MoN nanosheets show strong surface plasmon resonance, high conductivity, excellent thermal and chemical stability as well as a high photothermal conversion efficiency of 61.1%. As a promising surface enhanced Raman scattering substrate, the δ−MoN nanosheets exhibit a 8.16 × 106 enhanced factor and a 10−10 level detection limit for polychlorophenol.

Date: 2020
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DOI: 10.1038/s41467-020-17628-0

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