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首页> 外文期刊>Waste and biomass valorization >Valorization of Vanillyl Alcohol by Pigments: Prussian Blue Analogue as a Highly-Effective Heterogeneous Catalyst for Aerobic Oxidation of Vanillyl Alcohol to Vanillin
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Valorization of Vanillyl Alcohol by Pigments: Prussian Blue Analogue as a Highly-Effective Heterogeneous Catalyst for Aerobic Oxidation of Vanillyl Alcohol to Vanillin

机译:颜料对香兰醇的增值作用:普鲁士蓝类似物是一种高效的多相催化剂,可将香兰醇有氧氧化为香兰素

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摘要

Prussian blue analogues (PBA), a class of metal-coordinated frameworks, are proposed in this study for aerobic oxidation of a lignin model compound, vanillyl alcohol (VAL), to the valuable product, vanillin (VN). While different metals and hexacyano-metalates are used to prepare various PBAs, the prototype PBA (Fe-3[Fe(CN)(6)](2) abbreviated as "FeFe") exhibited the highest catalytic activity towards VAL conversion to VN. The kinetics of VAL conversion is determined and the production of VN is also analyzed using the pseudo first order rate law. In addition, FeFe exhibits the highest catalytic activity to convert VAL to VN with the highest production and selectivity compared to the reported heterogeneous catalysts. FeFe can be also re-used to catalyze conversion of VAL to VN without significant activity loss. These features indicate that FeFe, as an easy-to-obtain and non-toxic pigment, is a promising catalyst for aerobic oxidation of VAL.
机译:普鲁士蓝类似物(PBA)是一类金属配位的骨架,在这项研究中提出了将木质素模型化合物香草醇(VAL)有氧氧化为有价值的产品香草醛(VN)的方法。虽然使用不同的金属和六氰基金属酸盐制备各种PBA,但原型PBA(Fe-3 [Fe(CN)(6)](2)缩写为“ FeFe”)对VAL转化为VN表现出最高的催化活性。使用伪一级速率定律确定VAL转化的动力学并分析VN的产生。此外,与报道的多相催化剂相比,FeFe具有最高的催化活性,可将VAL转化为VN,具有最高的产量和选择性。 FeFe也可以重新使用,以催化VAL转化为VN,而不会明显降低活性。这些特征表明,FeFe是一种易于获得且无毒的颜料,是有氧氧化VAL的有希望的催化剂。

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