Novel γ‐Al2O3 Supported Low Concentrated Pd Nanoalloy Catalyst for Improved Hydrogenation Ability of 2‐Methylfuran. Issue 23 (22nd June 2020)

• Record Type: Journal Article
• Authors: Shang, Fangfang; Yu, Haoxuan; Chu, Qingyan; Yang, Haiyu; Wang, Ping; Cui, Hongyou; Wang, Ming
• Is Part Of: ChemistrySelect. Volume 5:Issue 23(2020)
• Page Start: 7021
• Page End: 7025
• Publication Date: 2020-06-22
• Subjects: alloy -- fixed bed -- hydrogenation -- nanoparticle -- 2-methylfuran; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202001145
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Pd−Al was constructed to deal with the issue that cyclic unsaturated compounds are unstable in hydrogenation reaction. Hydrogenation of 2‐methylfuran as a probe reaction in the fixed‐bed reactor afforded up to 99.9% yield and 100% chemo‐selectivity requiring only 100 °C and 2 MPa pressure. Compared with the previous hydrogenation catalyst, such as Ni based catalyst, Pd−Al nanoalloy catalyst employs better performance. Enhancement of catalytic activity, selectivity and stability was attributed to the construction of nano‐effect and Pd−Al alloy structure with low loading amount of Pd. Furthermore, Pd−Al nanoalloy catalyst presented excellent catalytic stability in hydrogenation reaction running for 150 h. Finally, a feasible mechanism of the reaction was proposed and proved by collecting intermediate. Abstract : The Pd metal nanoparticles is supported on γ‐Al2 O3 to obtain Pd−Al nano‐alloy catalyst, which is applied to the probe reaction of 2‐MF's (2‐methylfuran) hydrogenation via fixed bed continuous reaction system. The Pd−Al nano‐alloy catalyst performs excellent catalytic activity with 99.9% yield and 100% chemo‐selectivity. The nano‐effect and introduction of Pd altered the micro‐environment of catalyst surface, accordingly, enhanced catalytic activity, selectivity and stability. Finally, the mechanism was proposed based on the literature and experimental results and was verified.