Catalytic dehydration of 2-propanol over nickel phosphide immobilized on natural bentonite

Hasanudin, Hasanudin and Asri, Wan Ryan and Husnia, Lepa and Fanani, Zainal and Maryana, Roni and Al Muttaqii, Muhammad and Zhu, Zongyuan and Sagadevan, Suresh (2023) Catalytic dehydration of 2-propanol over nickel phosphide immobilized on natural bentonite. Reaction Kinetics Mechanisms and Catalysis, 136 (2). pp. 727-740. ISSN 1878-5190, DOI

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This study investigated the fabrication of nickel phosphide immobilized on natural bentonite (NiP/bentonite) as a low-cost catalyst with different metal loadings (mEq/g) to produce diisopropyl ether (DIPE) as a potential gasoline additive. The catalysts were prepared using a simple wet-impregnation method. The physicochemical features of the parent natural bentonite and NiP/bentonite were analyzed using FTIR, SEM-EDX, XRD, N-2 physisorption, and catalyst acidity using the NH3 gravimetric method. The dehydration reaction was conducted under mild conditions (150 degrees C for 3 h) using a reflux system. The results suggested that the NiP species did not alter the bentonite structure while increasing its acidity and surface area properties. Using the 8 mEq/g NiP/bentonite catalyst, a DIPE product of 68.52% was achieved owing to the highly acidic sites of the catalyst and high stability over three cycles. This study highlights the potential of nickel-phosphide-supported natural bentonite in the dehydration reaction for DIPE production.

Item Type: Article
Uncontrolled Keywords: Diisopropyl ether; 2-propanol dehydration; Nickel phosphide; Natural bentonite
Subjects: Q Science > QD Chemistry
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 05 Jul 2023 01:36
Last Modified: 05 Jul 2023 01:36

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