Butane Dry Reforming Catalyzed by Cobalt Oxide Supported on Ti2AlC MAX Phase. Issue 23 (18th September 2020)

• Record Type: Journal Article
• Authors: Ronda‐Lloret, Maria; Marakatti, Vijaykumar S.; Sloof, Willem G.; Delgado, Juan José; Sepúlveda‐Escribano, Antonio; Ramos‐Fernandez, Enrique V.; Rothenberg, Gadi; Shiju, N. Raveendran
• Is Part Of: ChemSusChem. Volume 13:Issue 23(2020)
• Page Start: 6401
• Page End: 6408
• Publication Date: 2020-09-18
• Subjects: butane dry reforming -- cobalt oxide -- CO2 conversion -- MAX phases -- Ti2AlC support; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.202001633
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: MAX (M n +1 AX n ) phases are layered carbides or nitrides with a high thermal and mechanical bulk stability. Recently, it was shown that their surface structure can be modified to form a thin non‐stoichiometric oxide layer, which can catalyze the oxidative dehydrogenation of butane. Here, the use of a Ti2 AlC MAX phase as a support for cobalt oxide was explored for the dry reforming of butane with CO2, comparing this new catalyst to more traditional materials. The catalyst was active and selective to synthesis gas. Although the surface structure changed during the reaction, the activity remained stable. Under the same conditions, a titania‐supported cobalt oxide catalyst gave low activity and stability due to the agglomeration of cobalt oxide particles. The Co3 O4 /Al2 O3 catalyst was active, but the acidic surface led to a faster deactivation. The less acidic surface of the Ti2 AlC was better at inhibiting coke formation. Thanks to their thermal stability and acid‐base properties, MAX phases are promising supports for CO2 conversion reactions. Abstract : Take it to the MAX : The reaction of carbon dioxide with butane to give syn‐gas is a valid method for converting CO2 into something useful and is catalyzed efficiently by cobalt oxide supported on a MAX phase.