2,5-Furandicarboxylic acid (FDCA), which is recognized as a valuable alternative to petroleum-derived terephthalic acid and produce more bio-based polymers, has attracted considerable attention in recent years. Herein, a series of nitrogen-containing polymer nanosheets bearing Cu and VO (Cu-VO/PDVTA) were designed and displayed superior catalytic performance in the selective oxidation of 5-hydroxymethylfurfural (HMF) to FDCA. The catalyst was characterized by FT-IR, SEM, XPS, TG, UV–Vis DRS, PL, and ICP-AES analysis techniques. The effects of various reaction parameters, including the -butyl hydroperoxide dosage, temperature, and solvents on the HMF oxidation were systematically investigated, and the results were discussed in details. The Cu-VO/PDVTA catalyst achieved 100% conversion of HMF with 98.6% selectivity toward FDCA without the requirement for any basic additives under mild conditions (90 °C, 10 h), as well as has a good reusability. Coupling of the active sites of Cu and VO provide a synergistic effect for FDCA production. This study may provide a novel method for the development of efficient non-precious metal catalyst without addition of alkali additives, benefiting the valorization of furan-based compounds into high-valued chemicals in industrial processes.

中文翻译：

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通过新型铜和氧化钒功能化催化剂，高效定向获取从 5-羟甲基糠醛衍生的 2,5-呋喃二甲酸

2,5-呋喃二甲酸（FDCA）被认为是石油衍生对苯二甲酸的有价值替代品，可生产更多生物基聚合物，近年来引起了广泛关注。在此，设计了一系列带有Cu和VO的含氮聚合物纳米片（Cu-VO/PDVTA），并在5-羟甲基糠醛（HMF）选择性氧化为FDCA时表现出优异的催化性能。通过 FT-IR、SEM、XPS、TG、UV-Vis DRS、PL 和 ICP-AES 分析技术对催化剂进行了表征。系统研究了叔丁基过氧化氢用量、温度和溶剂等反应参数对HMF氧化的影响，并对结果进行了详细讨论。 Cu-VO/PDVTA催化剂在温和条件下（90℃，10h）无需任何碱性添加剂即可实现HMF的100％转化，对FDCA的选择性为98.6％，并且具有良好的可重复使用性。 Cu 和 VO 活性位点的偶联为 FDCA 的生产提供了协同效应。这项研究可能为开发不添加碱添加剂的高效非贵金属催化剂提供一种新方法，有利于将呋喃基化合物转化为工业过程中的高价值化学品。