Novel core-shell nanocomposite as an effective heterogeneous catalyst for the synthesis of benzimidazoles

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ID: 265411
2021
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Abstract
Core-shell nanocomposites with a catalytic metal-organic framework (MOF) shell are more effective and stable than bare MOF. We have successfully designed an effective heterogeneous catalyst for the synthesis of benzimidazole by integrating acidic catalytic activity, and promoted the aerobic oxidation and magnetic recyclability of core-shell nanocomposite FeO@SiO@UiO-66. The FeO@SiO core is encapsulated by the in situ-grown UiO-66 shell, and the UiO-66 shell retains the porous structure and crystallinity of UiO-66 with abundant exposed Lewis acid sites. It shows high catalytic ability for the synthesis of various benzimidazoles through the acid-catalyzed condensation and aerobic oxidation with in situ oxygen. The FeO@SiO core provides magnetic recyclability of FeO@SiO@UiO-66, and maintains high catalytic ability and stability over six cycles.
Reference Key
zheng2021novelnanotechnology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zheng, J.
Journal Nanotechnology
Year 2021
DOI
10.1088/1361-6528/abef2f
URL
Keywords Keywords not found

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