Abstract
Rh-MoOx/SiO2 (Mo/Rh=0.13) is an effective catalyst for the hydrogenolysis of 1,4-anhydroerythritol (1,4-AHERY) and provides 2-BuOH in high yield of 51 %. This is the first report of the production of 2-BuOH from 1,4-AHERY by hydrogenolysis. 1,4-AHERY was more suitable as a starting material than erythritol because the 2-BuOH yield from erythritol was low (34 %). Based on the kinetics and comparison of reactivities of the related compounds using Rh-MoOx/SiO2 and Rh/SiO2 catalysts, the modification of Rh/SiO2 with MoOx leads to the high activity and high selectivity to 2-BuOH because of the generation of reactive hydride species and the strong adsorption of 1,4-AHERY on MoOx species. The reaction proceeds by main two routes, (I) the combination of single C−O hydrogenolysis with the desorption of intermediates, a usual route in hydrogenolysis, and (II) multiple C−O hydrogenolysis without the desorption of intermediates from the active site, and the reaction mechanism for Route (II) is proposed.
Original language | English |
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Pages (from-to) | 1680-1688 |
Number of pages | 9 |
Journal | ChemSusChem |
Volume | 9 |
Issue number | 13 |
DOIs | |
Publication status | Published - 2016 Jul 7 |
Keywords
- alcohols
- biomass
- heterogeneous catalysis
- rhodium
- supported catalysts
ASJC Scopus subject areas
- Environmental Chemistry
- Chemical Engineering(all)
- Materials Science(all)
- Energy(all)