Abstract
Single-atom catalysts (SACs) are considered the best candidates for olefin hydroformylation due to their combined advantages of homogeneous and heterogeneous catalysts. Unlike conventional organo-phosphine modification, Rh SAC is modified by introducing Ca, resulting in a significant increase in activity (maximum ∼5.7-fold) and stability. Furthermore, a volcano curve between Ca addition ratio and catalytic activity is found. Introducing Ca significantly increases activity by decreasing the energy barrier, but excessive Ca decreases activity due to hindering substrate adsorption and reaction.
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Acknowledgements
This work was supported by the National Key Research and Development Program Nanotechnology Specific Project (2020YFA0210900), the Science and Technology Key Project of Guangdong Province, China (2020B010188002), Guangdong Natural Science Funds for Distinguished Young Scholar (2022B1515020035), Guangdong Provincial Key R&D Program (2019B110206002), the National Natural Science Foundation of China (22078371, 21938001, 21961160741), the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01C102), the Natural Science Foundation of Guangdong Province (2020A1515011141), and the Science and Technology Project of Guangzhou City, China (202102020461).
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Activity promotion of Rh1Cax/Al2O3 single-atom catalyst in 1-octene hydroformylation: a volcano curve exists between Ca adding ratio and catalytic activity
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Zhang, H., Zhang, X., Wang, X. et al. Activity promotion of Rh1Cax/Al2O3 single-atom catalyst in 1-octene hydroformylation: a volcano curve exists between Ca adding ratio and catalytic activity. Sci. China Chem. 67, 1187–1192 (2024). https://doi.org/10.1007/s11426-023-1879-8
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DOI: https://doi.org/10.1007/s11426-023-1879-8