Issue 24, 2023

Selective C–O bond cleavage in diphenyl ether via catalytic transfer hydrogenolysis over Ru-decorated nanocrystalline H-ZSM-5

Abstract

Renewable lignocellulosic biomass holds the potential to cater to the escalating energy requirements of the expanding global population. The intricate task of creating a durable catalyst capable of selectively breaking C–O bonds of model compounds of lignin, specifically diphenyl ether (DPE), presents a substantial hurdle due to their formidable bond energy. In this study, we accomplished the conversion of diphenyl ether (DPE) into hydrogenated derivatives (cyclohexanol and cyclohexane) via a sustainable catalytic transfer hydrogenolysis (CTH) route, facilitated by ruthenium nanoparticle (NP) decorated nanocrystalline HZSM-5 (N-HZSM-5), while employing isopropanol (IPA) as the hydrogen source. The catalyst synthesis involved the integration of ruthenium into N-HZSM-5 through impregnation and chemical reduction techniques. The catalyst acidity and reducibility, evaluated using NH3-TPD and H2-TPR analyses, facilitated the CTH process. Remarkably, a full transformation of DPE was achieved at 170 °C with nearly 100% selectivity towards hydrogenated (HYD) products over Ru(3%)/N-HZSM-5. Furthermore, the Ru(3%)/N-HZSM-5 catalyst exhibited exceptional robustness and reusability during the CTH of DPE, thereby facilitating the conversion of diverse lignin model compounds into HYD products via the CTH mechanism.

Graphical abstract: Selective C–O bond cleavage in diphenyl ether via catalytic transfer hydrogenolysis over Ru-decorated nanocrystalline H-ZSM-5

Supplementary files

Article information

Article type
Paper
Submitted
02 Қаз. 2023
Accepted
09 Қар. 2023
First published
09 Қар. 2023

Sustainable Energy Fuels, 2023,7, 5714-5732

Selective C–O bond cleavage in diphenyl ether via catalytic transfer hydrogenolysis over Ru-decorated nanocrystalline H-ZSM-5

A. Kumar and R. Srivastava, Sustainable Energy Fuels, 2023, 7, 5714 DOI: 10.1039/D3SE01285A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements