Hydrodeoxygenation of 2,5-dimethyltetrahydrofuran over bifunctional Pt-Cs 2.5 H 0.5 PW 12 O 40 catalyst in the gas phase: enhancing effect of gold.

Autor: Althikrallah H; University of Liverpool, Department of Chemistry Liverpool L69 7ZD UK kozhev@liverpool.ac.uk.; Department of Chemistry, King Faisal University, College of Science P.O. Box 400, Al-Ahsa 31982 Saudi Arabia halhekrallh@kfu.edu.sa., Kozhevnikova EF; University of Liverpool, Department of Chemistry Liverpool L69 7ZD UK kozhev@liverpool.ac.uk., Kozhevnikov IV; University of Liverpool, Department of Chemistry Liverpool L69 7ZD UK kozhev@liverpool.ac.uk.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2022 Jan 14; Vol. 12 (4), pp. 2287-2291. Date of Electronic Publication: 2022 Jan 14 (Print Publication: 2022).
DOI: 10.1039/d1ra09105k
Abstrakt: 2,5-Dimethyltetrahydrofuran (DMTHF) is deoxygenated to n -hexane with >99% selectivity at mild conditions (90 °C, 1 bar H 2 pressure, fixed-bed reactor) in the presence of the bifunctional metal-acid catalyst Pt-CsPW comprising Pt and Cs 2.5 H 0.5 PW 12 O 40 (CsPW), an acidic Cs salt of Keggin-type heteropoly acid H 3 PW 12 O 40 . 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.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
Externí odkaz: