By the same authors

From the same journal

Bifunctional organorhodium solid acid catalysts for methanol carbonylation

Research output: Contribution to journalArticlepeer-review

Published copy (DOI)



Publication details

JournalACS Catalysis
DatePublished - 6 Jul 2012
Issue number7
Pages (from-to)1368-1376
Original languageEnglish


Robust, bifunctional catalysts comprising Rh(CO)(Xantphos) exchanged phosphotungstic acids of general formulas [Rh(CO)(Xantphos)] [HPWO] have been synthesized over silica supports which exhibit tunable activity and selectivity toward direct vapor phase methanol carbonylation. The optimal Rh:acid ratio = 0.5, with higher rhodium concentrations increasing the selectivity to methyl acetate over dimethyl ether at the expense of lower acidity and poor activity. On-stream deactivation above 200 °C reflects Rh decomplexation and reduction to Rh metal, in conjunction with catalyst dehydration and loss of solid acidity because of undesired methyl acetate hydrolysis, but can be alleviated by water addition and lower temperature operation.

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations