Abstract A series of boron doped magnetic zirconium catalysts were developed for the selective transfer hydrogenation of biomass-derived furfural (FFR) into furfuryl alcohol (FA) using 2-propanol as hydrogen source and solvent. Full characterizations with XRD, SEM, TG, Py-IR, NH3-TPD, and CO2-TPD techniques were undertaken to uncover structural properties of magnetic catalysts. Boron doped magnetic zirconium catalysts endowing with adjustable acid-base sites exhibited excellent performance as well as good regenerability in the transfer hydrogenation of FFR, where almost 100% FA yield was achieved in the presence of 2-propanol and the catalyst still sustained good activity after being used five times. Suitable acidity/basicity ratio of 3.8 ~ 4.0 apparently benefited the selective production of FA. Gratifyingly, the activation energy for FA formation over Zr1B3FeO was as low as 48.3 kJ/mol. In addition, plausible reaction mechanism involving two H-transfer paths for transfer hydrogenation of FFR into FA under the catalysis of active Zr/B species was proposed.

中文翻译：

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v硼掺杂磁性催化剂用于糠醛选择性转移氢化成糠醇

摘要 以2-丙醇为氢源和溶剂，开发了一系列硼掺杂的磁性锆催化剂，用于将生物质衍生的糠醛（FFR）选择性转移氢化为糠醇（FA）。使用 XRD、SEM、TG、Py-IR、NH3-TPD 和 CO2-TPD 技术进行全面表征，以揭示磁性催化剂的结构特性。具有可调节酸碱位点的硼掺杂磁性锆催化剂在 FFR 转移氢化中表现出优异的性能和良好的再生性，在 2-丙醇存在下实现了几乎 100% 的 FA 产率，并且催化剂在反应后仍保持良好的活性。被使用了五次。适宜的酸碱比为 3.8~4.0 显然有利于 FA 的选择性生产。令人欣慰的是，在 Zr1B3FeO 上形成 FA 的活化能低至 48.3 kJ/mol。此外，还提出了在活性 Zr/B 物种的催化下，将 FFR 加氢转化为 FA 的两条 H 转移路径的合理反应机制。