Hydrodeoxygenation of 2,5-dimethyltetrahydrofuran over bifunctional Pt–Cs2.5H0.5PW12O40 catalyst in the gas phase: enhancing effect of gold

Hanan Althikrallah; Elena F. Kozhevnikova; Ivan V. Kozhevnikov

doi:10.1039/D1RA09105K

Hydrodeoxygenation of 2,5-dimethyltetrahydrofuran over bifunctional Pt–Cs_2.5H_0.5PW₁₂O₄₀ catalyst in the gas phase: enhancing effect of gold†

Hanan Althikrallah,

^ab Elena F. Kozhevnikova^a and Ivan V. Kozhevnikov

*^a

Author affiliations

* Corresponding authors

^a University of Liverpool, Department of Chemistry, Liverpool L69 7ZD, UK
E-mail: kozhev@liverpool.ac.uk

^b Department of Chemistry, King Faisal University, College of Science, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
E-mail: halhekrallh@kfu.edu.sa

Abstract

2,5-Dimethyltetrahydrofuran (DMTHF) is deoxygenated to n-hexane with >99% selectivity at mild conditions (90 °C, 1 bar H₂ pressure, fixed-bed reactor) in the presence of the bifunctional metal-acid catalyst Pt–CsPW comprising Pt and Cs_2.5H_0.5PW₁₂O₄₀ (CsPW), an acidic Cs salt of Keggin-type heteropoly acid H₃PW₁₂O₄₀. Addition of gold to the Pt–CsPW catalyst increases the turnover rate at Pt sites more than twofold, whereas the Au alone without Pt is not active. The enhancement of catalyst activity is attributed to PtAu alloying, which is supported by STEM-EDX and XRD analysis.

This article is part of the themed collection: 2022 RSC Advances Popular Advances Collection

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DOI: https://doi.org/10.1039/D1RA09105K
Article type: Paper
Submitted: 16 Dec 2021
Accepted: 10 Jan 2022
First published: 14 Jan 2022
This article is Open Access

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RSC Adv., 2022,12, 2287-2291

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Hydrodeoxygenation of 2,5-dimethyltetrahydrofuran over bifunctional Pt–Cs_2.5H_0.5PW₁₂O₄₀ catalyst in the gas phase: enhancing effect of gold

H. Althikrallah, E. F. Kozhevnikova and I. V. Kozhevnikov, RSC Adv., 2022, 12, 2287 DOI: 10.1039/D1RA09105K

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