Solving the Water Hypersensitive Challenge of Sulfated Solid Superacid in Acid-Catalyzed Reactions

In the past decades, water tolerance has always been the long-pending key issue of sulfated solid superacids (SO4 2–/M x O y ) toward industrial applications. Herein, we report a strategy for the facile coating of a thick tunable hydrophobic layer over SO4 2–/M x O y , which can significantly improv...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2019-03, Vol.11 (10), p.9919-9924
Main Authors: Li, Licheng, Yue, Haiqin, Zhang, Suoying, Huang, Yaobing, Zhang, Weina, Wu, Peng, Ji, Yongxin, Huo, Fengwei
Format: Article
Language:English
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Summary:In the past decades, water tolerance has always been the long-pending key issue of sulfated solid superacids (SO4 2–/M x O y ) toward industrial applications. Herein, we report a strategy for the facile coating of a thick tunable hydrophobic layer over SO4 2–/M x O y , which can significantly improve water tolerance, with negligible inhibition on the catalytic performance of SO4 2–/M x O y . Even after being directly immersed in water, the hydrophobic SO4 2–/M x O y can still maintain above 90% of original catalytic activity, whereas pristine SO4 2–/M x O y and control samples are almost completely deactivated. This strategy opens a new route to enhance the water tolerance of sulfated solid superacids.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.8b20506