Hydrogenolysis of Aromatic Oxygenates Over Pt/WO₃-ZrO₂ in a Water/Decane Biphasic System.

Authors

Akito Ai, Yuga Ezoe, Takeyuki Nogami, Hiroki Miura, Tetsuya Shishido, Xiongjie Jin, Kyoko Nozaki

Published in

ChemSusChem. Volume 19. Issue 19. Pages e71085. Oct 14, 2026.

Abstract

The hydrogenolysis of lignin-derived aromatic oxygenates into aromatic hydrocarbons under mild conditions remains a significant challenge due to competing over-hydrogenation of the aromatic ring. Here, we report a highly active and water-tolerant Pt/WO₃-ZrO₂ catalyst that enables the conversion of a broad range of aromatic oxygenates into aromatic hydrocarbons in a water/decane biphasic system at 90 °C under ambient pressure with a H₂ partial pressure of only 0.1 atm. The biphasic environment efficiently suppresses side reactions by continuously extracting the arene products into the organic phase, thereby minimizing further hydrogenation of the aromatic ring. Kinetic analysis shows that C(sp²)-OMe cleavage precedes C(sp²)-OH cleavage in the hydrogenolysis of 4-ethylguaiacol, while mechanistic studies reveal that the strong Brønsted acidity and redox properties of the WO₃-ZrO₂ support enable hydrogenolysis under exceptionally mild conditions. The catalyst exhibits broad substrate scope, high selectivity for aromatic products, and good reusability, providing an efficient platform for producing aromatic hydrocarbons from lignin-derived oxygenates.

PMID:
42837482
Bibliographic data and abstract were imported from PubMed on 07 Oct 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.