Efficient production of renewable p-xylene (PX) from bio-based 2,5-dimethylfuran (DMF) and ethylene is challenging. Herein, novel nanoflake-like zirconium-tin phosphate catalysts were synthesized, and their catalytic performance was evaluated in the conversion of DMF and ethylene to PX. The DMF conversion, PX selectivity and PX yield reached up to 99%, 95.2% and 94.2%, respectively over Zr_0.6Sn_0.4P under relatively mild conditions. The PX productivity was 61.1 mmol_PX·g_cat⁻¹·h⁻¹, which is better than that of previously reported catalysts. By combining characterization with activity test, it was found that enhanced DMF and ethylene adsorption is beneficial to promoting the reaction between DMF and ethylene. Precise regulation of acid sites is crucial for inhibiting the occurrence of side reactions and improving the selectivity of PX. The kinetic analysis revealed that Zr_0.6Sn_0.4P had a relatively low apparent activation energy (39 kJ·mol⁻¹) for this reaction than previously reported catalysts. In addition, the Zr_0.6Sn_0.4P catalyst exhibited an excellent reusability.

从生物基 2,5-二甲基呋喃 (DMF) 和乙烯中高效生产可再生对二甲苯(PX) 具有挑战性。本文合成了新型纳米片状磷酸锆锡催化剂，并评价了其在DMF和乙烯转化为PX中的催化性能。在相对温和的条件下， Zr _0.6 Sn _0.4 P的DMF转化率、PX选择性和PX产率分别达到99%、95.2%和94.2% 。PX产率为61.1 mmol _PX ·g _cat ^-1 ·h ^-1，优于之前报道的催化剂。通过表征和活性测试相结合，发现增强DMF和乙烯的吸附有利于促进DMF和乙烯的反应。酸性位点的精确调控对于抑制副反应的发生、提高PX的选择性至关重要。动力学分析表明，与之前报道的催化剂相比， Zr _0.6 Sn _0.4 P对于该反应具有相对较低的表观活化能（39 kJ·mol ^{-1 ）。}此外，Zr _0.6 Sn _0.4 P催化剂表现出优异的可重复使用性。