Hydrothermal treatment: an effective method to improve the catalytic activity of the Pt/ZSM-5 catalyst for complete benzene oxidation

In this work, hydrothermal treatment surprisingly enhanced the catalytic activity of the Pt/ZSM-5 catalyst in benzene oxidation. It was confirmed that hydrothermal treatment at 400 °C partially destroyed the bridging OH groups on the catalyst, which may weaken the anchoring ability to Pt particles....

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Bibliographic Details
Published in:Catalysis science & technology 2023-06, Vol.13 (11), p.3221-3225
Main Authors: Wang, Yunchong, Fu, Kaixuan, Huang, Haolong, Shan, Cangpeng, Zheng, Yanfei, Han, Rui, Liu, Qingling
Format: Article
Language:English
Subjects:
Benzene
Catalysts
Catalytic activity
Hydrothermal treatment
Oxidation
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Summary:In this work, hydrothermal treatment surprisingly enhanced the catalytic activity of the Pt/ZSM-5 catalyst in benzene oxidation. It was confirmed that hydrothermal treatment at 400 °C partially destroyed the bridging OH groups on the catalyst, which may weaken the anchoring ability to Pt particles. Thus, Pt particles grew into larger ones with high Pt 0 content and turnover frequency (21.69 × 10 −3 s −1 ) . Besides, the in situ DRIFTS demonstrated that benzene was more easily oxidized on hydrothermally treated Pt/ZSM-5. Hydrothermal treatment surprisingly enhanced the catalytic activity of Pt/ZSM-5 in benzene oxidation and the treated catalyst exhibited outstanding stability.
ISSN:2044-4753
2044-4761
DOI:10.1039/d3cy00320e