A Heterogeneous Pt-ReO x /C Catalyst for Making Renewable Adipates in One Step from Sugar Acids

Renewable adipic acid is a value-added chemical for the production of bioderived nylon. Here, the one-step conversion of mucic acid to adipates was achieved in high yield through deoxydehydration (DODH) and catalytic transfer hydrogenation (CTH) by a bifunctional Pt-ReO x /C heterogeneous catalyst w...

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Bibliographic Details
Published in:ACS catalysis 2021-01, Vol.11 (1), p.95-109
Main Authors: Jang, Jun Hee, Ro, Insoo, Christopher, Phillip, Abu-Omar, Mahdi M
Format: Article
Language:English
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Summary:Renewable adipic acid is a value-added chemical for the production of bioderived nylon. Here, the one-step conversion of mucic acid to adipates was achieved in high yield through deoxydehydration (DODH) and catalytic transfer hydrogenation (CTH) by a bifunctional Pt-ReO x /C heterogeneous catalyst with isopropanol as solvent and reductant. The Pt-ReO x /C catalyst is reusable and was regenerated at least five times. The catalyst exhibits a broad substrate scope of various diols. Spectroscopic studies of Pt-ReO x /C revealed ReVII and Pt0 as the relevant species for DODH and CTH, respectively. Isotope labeling experiments support a monohydride mechanism for CTH over Pt. This work demonstrates a reusable bifunctional catalyst for a one-step valorization of sugar acids to a practical monomer, which opens the door to multifunctional catalysis streamlining valorization of biomass-derived molecules.
ISSN:2155-5435
2155-5435
DOI:10.1021/acscatal.0c04158