The development of new strategies for cascade reactions that demand composite catalysts with multifunctionality is imperative to advance bio-oil upgradation and its combustion properties. This work reports a model bio-oil-upgrading method of one-pot hydrogenation-esterification (OHE) of furfural for selective synthesis of furfuryl acetate using a bifunctional Pd@UiO-66(Hf) core-shell material. Additionally, the catalytic activity of Pd/UiO-66(Hf) and Pd@UiO-66(Zr) materials were evaluated in the OHE reaction for comparison. Various properties of the screened catalysts were elucidated by different characterization techniques. The Pd@UiO-66(Hf) hybrid material demonstrated high catalytic performance in the OHE reaction of furfural with acetic acid. The superior activity of Pd@UiO-66(Hf) over the other MOF-based hybrid materials is correlated with its surface acidic properties and the synergistic effect of Pd NPs with the acidic sites (on SBU of MOF). The excellent performance exhibited by Pd@UiO-66(Hf) in OHE of furfural with acetic acid is superior to the reported catalysts. The present study offers new opportunities for the efficient conversion of biomass-derived molecules into value-added products. This is the first-ever report on MOF-based catalyst studied for the OHE reaction of furfural with acetic acid for the selective synthesis of furfuryl acetate.

开发需要多功能复合催化剂的级联反应新策略对于推进生物油升级及其燃烧性能势在必行。这项工作报告了一种使用双功能 Pd@UiO-66(Hf) 核壳材料选择性合成糠醛乙酸酯的糠醛一锅加氢酯化 (OHE) 模型生物油升级方法。此外，在 OHE 反应中评估了 Pd/UiO-66(Hf) 和 Pd@UiO-66(Zr) 材料的催化活性以进行比较。通过不同的表征技术阐明了筛选催化剂的各种性质。Pd@UiO-66(Hf)杂化材料在糠醛与乙酸的OHE反应中表现出高催化性能。Pd@UiO-66(Hf) 优于其他基于 MOF 的杂化材料的活性与其表面酸性特性以及 Pd NPs 与酸性位点的协同效应（在 MOF 的 SBU 上）相关。Pd@UiO-66(Hf)在糠醛与乙酸的OHE中表现出的优异性能优于已报道的催化剂。本研究为将生物质衍生分子有效转化为增值产品提供了新的机会。这是首次报道基于 MOF 的催化剂用于糠醛与乙酸的 OHE 反应，用于选择性合成乙酸糠酯。本研究为将生物质衍生分子有效转化为增值产品提供了新的机会。这是首次报道基于 MOF 的催化剂用于糠醛与乙酸的 OHE 反应，用于选择性合成乙酸糠酯。本研究为将生物质衍生分子有效转化为增值产品提供了新的机会。这是首次报道基于 MOF 的催化剂用于糠醛与乙酸的 OHE 反应，用于选择性合成乙酸糠酯。