一种水热稳定的镱金属有机框架作为葡萄糖转化的双功能固体酸催化剂。
A hydrothermally stable ytterbium metal-organic framework as a bifunctional solid-acid catalyst for glucose conversion.
机构信息
Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.
出版信息
Chem Commun (Camb). 2019 Sep 19;55(76):11446-11449. doi: 10.1039/c9cc05364f.
PMID:31486470
Abstract
Yb6(BDC)7(OH)4(H2O)4 contains both bridging hydroxyls and metal-coordinated waters, possessing Brønsted and Lewis acid sites. The material crystallises from water at 200 °C. Using the solid as a heterogenous catalyst, glucose is converted into 5-hydroxymethylfurfural, via fructose, with a total selectivity of ∼70% after 24 hours at 140 °C in water alone: the material is recyclable with no loss of crystallinity.
摘要
Yb6(BDC)7(OH)4(H2O)4 中同时含有桥连羟基和配位水，具有 Brønsted 和 Lewis 酸位。该材料在 200°C 的水中结晶。将该固体用作非均相催化剂，在 140°C 下单独用水反应 24 小时，葡萄糖可通过果糖转化为 5-羟甲基糠醛，总选择性约为 70%：该材料可回收利用，且没有结晶度损失。
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