Abstract
Carbon black and Cr2AlC were used as raw materials to obtain a large number of Cr3C2 nanosheets by means of the molten salt heat treatment at 1 100 °C for 1.5 hours. Results showed that carbon black can promote the decomposition of a large number of Cr2AlC to form Cr3C2 and Cr7C3 nanoparticles at 1 100 °C in the absence of molten salt. Under a molten salt environment, carbon black can promote the complete decomposition of Cr2AlC to form Cr3C2 and Cr7C3 nanosheets. The thickness of chromium carbide nanosheets is approximately 10–20 nm, and the length is approximately 100–200 nm. The addition of excess carbon black can promote the complete decomposition of Cr2AlC into a material with Cr3C2 as the main phase.
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Funded by the National Natural Science Foundation of China (No.51864028), Key Scientific and Technological Projects in Henan Province (No.212102210465), Key Scientific Research Project Plan of Colleges and Universities in Henan Province (No.22A430041, 22B430035), National Innovation and Entrepreneurship Training Program for College Students (No.202110465013), National Natural Science Foundation of China (No.U2030207)
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Liang, B., Dai, Z., Zhang, W. et al. In-situ Synthesis of Cr3C2 Nanosheets by Carbon Reduction Route from Cr2AlC. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 37, 364–369 (2022). https://doi.org/10.1007/s11595-022-2540-0
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DOI: https://doi.org/10.1007/s11595-022-2540-0