2,5-Bis(hydroxymethyl)furan (BHMF) produced from 5-hydroxymethylfurfural (HMF) plays a significant role in the production of resins, fibers, foams, drugs, polymers, ketones and ethers. In this study, a novel cost-effective copper iron magnetic bimetallic nanocatalyst supported on activated carbon (CuO–Fe₃O₄/AC) was developed for the selective hydrogenation of HMF into BHMF via Meerwein–Ponndorf–Verley (MPV) reaction using ethanol as a hydrogen donor. Various analytical techniques such as HRTEM-EDX, TGA, ICP-OES, XRD, H₂-TPR, XPS, and nitrogen adsorption–desorption isotherms (BET and BJH methods) were used to characterize the prepared catalyst. Reaction parameters affecting the selectivity of BHMF such as catalyst concentration, temperature, and time were studied. Kinetic study indicated a pseudo-first order reaction with a significant high rate constant of BHMF formation compared with the formation rate constants of MF, MFA, and DMF byproducts. At the optimum reaction conditions, 94.8% of BHMF selectivity and 97.5% conversion were obtained in ethanol over 1:1 (w/w), HMF/Catalyst, at 150 °C for 5 h. The recycling experiments revealed that the catalyst maintained its high catalytic activity after five runs.

中文翻译：

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铜-铁氧化物双金属纳米催化剂将生物质衍生的5-羟基甲基糠醛无氢催化还原成2,5-双（羟甲基）呋喃

由5-羟甲基糠醛（HMF）生产的2,5-双（羟甲基）呋喃（BHMF）在树脂，纤维，泡沫，药物，聚合物，酮和醚的生产中起重要作用。在这项研究中，开发了一种新型的具有成本效益的载于活性炭上的铜铁磁性双金属纳米催化剂（CuO–Fe ₃ O ₄ / AC），用于使用乙醇通过Meerwein–Ponndorf–Verley（MPV）反应将HMF选择性加氢成BHMF。作为氢供体。各种分析技术，例如HRTEM-EDX，TGA，ICP-OES，XRD，H ₂-TPR，XPS和氮吸附-解吸等温线（BET和BJH方法）用于表征制备的催化剂。研究了影响BHMF选择性的反应参数，例如催化剂浓度，温度和时间。动力学研究表明，与MF，MFA和DMF副产物的形成速率常数相比，BHMF形成的速率常数高的拟一级反应。在最佳反应条件下，在150℃，1：1（w / w），HMF /催化剂的乙醇中，BHMF的选择性达到94.8％，转化率为97.5％。再循环实验表明，该催化剂在运行五次后仍保持其高催化活性。