MoS2 supported noble metal catalysts were used for the catalytic conversion of terahydrofurfuryl alcohol (THFA) to 1,5-pentanediol (1,5-PDO) and its derivate tetrahydropyrane (THP). Over the optimal 4%Pt/MoS2-FR catalyst, 75.8% overall selectivity (35.4% to 1,5-PDO and 40.4% to THP) and 63.7% conversion of 5 wt% THFA solution were obtained after 8 h reaction at 250 °C. The catalyst showed stable catalytic performance in five-cycle reactions, demonstrating the robustness of Pt/MoS2 under the harsh hydrothermal and hydrogenation conditions. A variety of characterizations, including CO-DRIFTS, HRTEM, H2-TPR, Raman spectroscopy and XPS revealed that typical behavior of strong metal-support interaction (SMSI) existed between Pt and MoS2, largely caused by the coverage of MoS2 over Pt and rarely reported previously. The Pt/MoS2 had intact structure under the harsh conditions thanks to the SMSI and chemical stability of MoS2. The acidity of Pt/MoS2 was negligible, and the active sites for the reaction were attributed to Pt and the Mo sites interacting closely on the catalysts. The reaction pathway was proposed according to the product distributions and the results of conditional experiments.

中文翻译：

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四氢糠醇在稳定的 Pt/MoS2 催化剂上的催化转化

MoS2 负载的贵金属催化剂用于将四氢糠醇 (THFA) 催化转化为 1,5-戊二醇 (1,5-PDO) 及其衍生物四氢吡喃 (THP)。在最佳的 4%Pt/MoS2-FR 催化剂上，在 250°反应 8 小时后获得了 75.8% 的总选择性（35.4% 到 1,5-PDO 和 40.4% 到 THP）和 63.7% 的 5 wt% THFA 溶液转化率C。该催化剂在五循环反应中表现出稳定的催化性能，证明了 Pt/MoS2 在苛刻的水热和加氢条件下的稳健性。包括 CO-DRIFTS、HRTEM、H2-TPR、拉曼光谱和 XPS 在内的各种表征表明，Pt 和 MoS2 之间存在强金属-载体相互作用 (SMSI) 的典型行为，这主要是由 MoS2 覆盖在 Pt 上引起的之前报道过。由于 MoS2 的 SMSI 和化学稳定性，Pt/MoS2 在恶劣条件下具有完整的结构。Pt/MoS2 的酸性可以忽略不计，反应的活性位点归因于 Pt 和 Mo 位点在催化剂上密切相互作用。根据产物分布和条件实验结果提出反应途径。