Abstract
Imines are important compounds in organic chemistry and polymer chemistry. Nanoflaked CeO2–MoS2 composites, used as the catalyst in the imine synthesis, were synthesized by solvothermal method using calcined CeO2 nanoflakes as substrate. XPS confirmed that the CeO2–MoS2 (1:2) had the higher Ce3+ % and the lower Mo6+ % than the pure CeO2 or pure MoS2, which benefitted the catalytic activity. Meanwhile, the imine conversion proved the excellent catalytic ability of CeO2–MoS2 (1:2), better than pure CeO2 or MoS2. This might be attributed to the heterogeneous junction formed between CeO2 and MoS2, which caused faster Ce4+/Ce3+ transformation (more O*generation) and extra H2O consumption.
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Acknowledgements
This research was supported by National Natural Science Foundation of China (Grant Number 21601121), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (Grant Number QD2016037), and Young Professor Cultivation Program of Shanghai Municipal University (Grant Number ZZGCD16019).
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Chen, LY., Xu, FF., Zhang, J. et al. Structure design of CeO2–MoS2 composites and their efficient activity for imine synthesis. Appl Nanosci 10, 233–241 (2020). https://doi.org/10.1007/s13204-019-01114-1
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DOI: https://doi.org/10.1007/s13204-019-01114-1