Hydrogenated dicyclopentadiene (DCPD) resin has been aroused widely concerned with developing of polymer material science. Due to its cross-linked molecular structure, large steric hindrance, and high activation energy of unsaturated bonds, the design of hydrogenation catalyst with fine structure, high activity, and excellent stability poses great challenges. Herein, basing on the concept of strong metal support interaction, supported palladium catalyst (Pd-MgAlO-HT) derived from thermal decomposition of hydrotalcite-like compound has been synthesized and the related chemical processing conditions have been optimized in a stainless autoclave at 150−270 °C, 1−9 MPa H₂ pressure and 0.5−6 h reaction time. The optimal product shows colorless transparent with a degree of hydrogenation over 96.5 %. As comparing with Pd/MgAlO-IM catalyst prepared by conventional impregnation method, the Pd-MgAlO-HT catalyst presents higher activity and stability for DCPD resin hydrogenation. Combined with the XRD, TEM, H₂-TPR analysis results, the enhanced catalytic performance of Pd-MgAlO-HT catalyst could ascribe to the small particle size, high dispersion of Pd particles and strong metal support interaction between Pd species and the support.

氢化二环戊二烯（DCPD）树脂已引起广泛关注，涉及高分子材料科学的发展。由于其交联的分子结构，大的位阻和不饱和键的高活化能，结构精细，活性高和稳定性优异的加氢催化剂的设计面临很大的挑战。在此，基于强金属载体相互作用的概念，合成了由类水滑石化合物热分解衍生的负载钯催化剂（Pd-MgAlO-HT），并在150-℃的不锈钢高压釜中优化了相关的化学处理条件。 270°C，1−9兆帕H ₂压力和0.5-6 h反应时间。最佳产品显示出无色透明，氢化度超过96.5％。与常规浸渍法制备的Pd / MgAlO-IM催化剂相比，Pd-MgAlO-HT催化剂对DCPD树脂的氢化反应具有更高的活性和稳定性。结合XRD，TEM，H ₂ -TPR分析结果，Pd-MgAlO-HT催化剂的催化性能增强，可归因于Pd颗粒尺寸小，分散性高以及Pd物种与载体之间较强的金属载体相互作用。