Jump to main content
Jump to site search

Issue 8, 2016
Previous Article Next Article

Hydrodeoxygenation of sulfoxides to sulfides by a Pt and MoOx co-loaded TiO2 catalyst

Author affiliations

Abstract

Supported metal nanoparticle catalysts were studied for the hydrodeoxygenation of sulfoxides to sulfides under solvent-free and mild conditions (50–155 °C, 1 or 7 atm H2). The catalytic activity for the model reaction of diphenyl sulfoxide depended on the type of metals, support materials and co-loaded oxides of transition metals (V, Nb, Mo, W, Re). Pt and MoOx co-loaded TiO2 (Pt–MoOx/TiO2) showed the highest activity. Pt–MoOx/TiO2 was reusable after the reaction and was effective for the reduction of various sulfoxides and showed a higher turnover number (TON) than previously reported catalysts. Using Pt–MoOx/TiO2, benzylphenylsulfone was reduced by H2 to give phenylbenzyl sulfide via benzylphenyl sulfoxides, which represented the first example of catalytic conversion of a sulfone to a sulfide by H2. Characterization studies of Pt–MoOx/TiO2 show that the surface of TiO2 is covered by small (or thin layer) Mo oxide species with exposed Mo cations as Lewis acid sites, and 4–5 nm sized Pt metal nanoparticles are supported on the Mo oxide-covered TiO2.

Graphical abstract: Hydrodeoxygenation of sulfoxides to sulfides by a Pt and MoOx co-loaded TiO2 catalyst

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Nov 2015, accepted on 04 Jan 2016 and first published on 05 Jan 2016


Article type: Paper
DOI: 10.1039/C5GC02806J
Author version available: Download Author version (PDF)
Citation: Green Chem., 2016,18, 2554-2560
  •   Request permissions

    Hydrodeoxygenation of sulfoxides to sulfides by a Pt and MoOx co-loaded TiO2 catalyst

    A. S. Touchy, S. M. A. Hakim Siddiki, W. Onodera, K. Kon and K. Shimizu, Green Chem., 2016, 18, 2554
    DOI: 10.1039/C5GC02806J

Search articles by author

Spotlight

Advertisements