Vapor-Phase Epoxidation of Propene over Au/Ti-MCM-41 Catalysts: Influence of Ti Content and Au Content View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-02

AUTHORS

A.K. Sinha, S. Seelan, T. Akita, S. Tsubota, M. Haruta

ABSTRACT

Ti-MCM-41 samples were used for propene epoxidation using H2 and O2 after Au deposition by deposition--precipitation. Au nanoparticles supported on Ti-MCM-41 with Ti incorporated hydrothermally followed by post-synthesis grafting gave higher propene oxide yields than Ti-MCM-41 with Ti incorporated hydrothermally or by grafting. Au L3-edge EXAFS spectra show the presence of metallic Au for the low Au content (0.21 wt%) catalyst which is more selective to epoxidation, while at high Au loadings (0.42 wt%) oxidic Au species are observed and the catalyst shows lower epoxide selectivity. More... »

PAGES

223-228

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1022154015963

DOI

http://dx.doi.org/10.1023/a:1022154015963

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1023976480


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