Direct synthesis of the organic and Ge free Al containing BOG zeolite (ITQ-47) and its application for transformation of biomass derived molecules

  • Huang Q
  • Chen N
  • Liu L
  • et al.
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Abstract

Aluminosilicate boggsite (Si/Al-BOG) has been hydrothermally synthesized without adding organic structure-directing agents (OSDAs) in the synthesis gel using the borosilicogermanium ITQ-47 (Si/B-ITQ-47) zeolite as seeds. Aluminosilicate boggsite (Si/Al-BOG) has been hydrothermally synthesized without adding organic structure-directing agents (OSDAs) in the synthesis gel using the borosilicogermanium ITQ-47 (Si/B-ITQ-47) zeolite as seeds. The introduction of the costly and environmentally less benign phosphazene organic structure-directing agent is not required to grow the zeolite. Physicochemical characterization experiments show that Si/Al-BOG has good crystallinity, high surface area, tetrahedral Al 3+ species, and acid sites. In order to test the catalytic performance of the zeolite, the synthesis of l , l -lactide from l -lactic acid was performed. Si/Al-BOG exhibits 88.2% conversion of l -lactic acid and 83.8% l , l -lactide selectivity, which are better than those of other zeolites studied up to now.

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Huang, Q., Chen, N., Liu, L., Arias, K. S., Iborra, S., Yi, X., … Corma, A. (2020). Direct synthesis of the organic and Ge free Al containing BOG zeolite (ITQ-47) and its application for transformation of biomass derived molecules. Chemical Science, 11(44), 12103–12108. https://doi.org/10.1039/d0sc04044d

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