Acidity as Descriptor for Methanol Desorption in B-, Ga- and Ti-MFI Zeotypes
Artikel i vetenskaplig tidskrift, 2021

The isomorphous substitution of Si with metals other than Al in zeotype frameworks allows for tuning the acidity of the zeotype and, therefore, to tailor the catalyst's properties as a function of the desired catalytic reaction. In this study, B, Ga, and Ti are incorporated in the MFI framework of silicalite samples and the following series of increasing acidity is observed: Ti-silicalite < B-silicalite < Ga-silicalite. It is also observed that the lower the acidity of the sample, the easier the methanol desorption from the zeotype surface. In the target reaction, namely the direct conversion of methane to methanol, methanol extraction is affected by the zeotype acidity. Therefore, the results shown in this study contribute to a more enriched knowledge of this reaction.

MFI

zeotype

infrared

methanol

Författare

Simone Creci

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Anna Martinelli

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Anna Martinelli Group

Szilvia Vavra

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Anna Martinelli Group

Per-Anders Carlsson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Per-Anders Carlsson Group

Magnus Skoglundh

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Catalysts

2073-4344 (ISSN)

Vol. 11 1 1-12 97

Ämneskategorier

Analytisk kemi

Annan medicinsk grundvetenskap

Organisk kemi

DOI

10.3390/catal11010097

Mer information

Senast uppdaterat

2021-02-18