| Literature DB >> 31844281 |
Longfei Lin1, Alena M Sheveleva1,2, Ivan da Silva3, Christopher M A Parlett4,5,6, Zhimou Tang7, Yueming Liu7, Mengtian Fan1, Xue Han1, Joseph H Carter1, Floriana Tuna1, Eric J L McInnes1, Yongqiang Cheng8, Luke L Daemen8, Svemir Rudić3, Anibal J Ramirez-Cuesta8, Chiu C Tang6, Sihai Yang9.
Abstract
The efficient production of light olefins from renewable biomass is a vital and challenging target to achieve future sustainable chemical processes. Here we report a hetero-atomic MFI-type zeolite (NbAlS-1), over which aqueous solutions of γ-valerolactone (GVL), obtained from biomass-derived carbohydrates, can be quantitatively converted into butenes with a yield of >99% at ambient pressure under continuous flow conditions. NbAlS-1 incorporates simultaneously niobium(V) and aluminium(III) centres into the framework and thus has a desirable distribution of Lewis and Brønsted acid sites with optimal strength. Synchrotron X-ray diffraction and absorption spectroscopy show that there is cooperativity between Nb(V) and the Brønsted acid sites on the confined adsorption of GVL, whereas the catalytic mechanism for the conversion of the confined GVL into butenes is revealed by in situ inelastic neutron scattering, coupled with modelling. This study offers a prospect for the sustainable production of butene as a platform chemical for the manufacture of renewable materials.Entities:
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Year: 2019 PMID： 31844281 DOI： 10.1038/s41563-019-0562-6
Source DB: PubMed Journal: Nat Mater ISSN： 1476-1122 Impact factor: 43.841