Abstact
Cu-SBA-16 has been prepared by one-pot synthesis method, and Characterized by XRD, TEM, and N2 adsorption measurements. An extended study about the nature of copper species in the Cu-SBA-16 has been performed by FT-IR, UV-DRS, H2-TPR and XPS. The copper species is mainly present on the mesoporous SBA-16 in the form of isolated mononuclear Cu2+ ions and highly dispersive CuO nanoclusters. The excellent catalytic activity has been obtained for phenol hydroxylation due to the presence of high amount of highly dispersive Cu species. The conversion to phenol and selectivity to diphenol are 29.4 and 91.5%, respectively.
Graphical Abstract
A simple EISA strategy for direct synthesis of mesoporous Cu-SBA-16 containing isolated mononuclear Cu2+ ions and highly dispersive CuO clusters which shows an excellent catalytic performance for phenol hydroxylation.
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Acknowledgments
This work is supported by the Natural Science Foundation of China (20876034), Program for New Century Excellent Talents in Heilongjiang Provincial University (1155-NCET-014), Major Foundation of Educational Commission of Heilongjiang Province of China (11531Z11) and Heilongjiang University Natural Science Funds for Distinguished Young Scholar (JCL200802)
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Dong, Y., Niu, X., Zhu, Y. et al. One-Pot Synthesis and Characterization of Cu-SBA-16 Mesoporous Molecular Sieves as an Excellent Catalyst for Phenol Hydroxylation. Catal Lett 141, 242–250 (2011). https://doi.org/10.1007/s10562-010-0490-1
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DOI: https://doi.org/10.1007/s10562-010-0490-1