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首页> 外文期刊>RSC Advances >Hybrid catalysts based on N-heterocyclic carbene anchored on hierarchical zeolites
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Hybrid catalysts based on N-heterocyclic carbene anchored on hierarchical zeolites

机译：基于N杂环卡宾固定在分级沸石上的杂化催化剂

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摘要

Hybrid materials have been synthesized by anchoring a N-heterocyclic carbene (NHC) precursor on different inorganic zeolitic supports with hierarchical porosity, in particular hierarchical HZSM-5 and SAPO-5. Hierarchical porous inorganic supports have been obtained both by top-down and bottom-up approaches and the role of hierarchical porosity has been evaluated. A detailed physico-chemical characterization has been performed on the organic–inorganic hybrids using a multi-technique approach (XRD, volumetric and thermogravimetric analysis, ssNMR and FTIR) in order to establish a structure–property relationship. The hybrids were tested in the benzoin condensation reaction of furfural, a base catalyzed reaction.
机译：通过将N-杂环卡宾（NHC）前体锚固在具有分级孔隙率的不同无机沸石载体上，尤其是分级HZSM-5和SAPO-5，可以合成杂化材料。通过自上而下和自下而上的方法均获得了分层多孔无机载体，并评估了分层孔隙率的作用。为了建立结构-性质关系，已使用多种技术方法（XRD，体积和热重分析，ssNMR和FTIR）对有机-无机杂化物进行了详细的理化表征。在糠醛的安息香缩合反应（一种碱催化的反应）中测试了杂化物。

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