通过尿素均匀沉淀法合成了一系列具有不同Cu/Co物质的量比的Cu_xCo_3–xAl类水滑石催化剂，并将其用于糠醛(FAL)直接加氢-氢解制备1,5-戊二醇(1,5-PeD)。研究结果表明，Cu/Co物质的量比对催化剂的织构性质及其催化性能具有显著的影响。当Cu/Co物质的量比为1∶29(Cu_0.1Co_2.9Al)时，催化剂表现出优异的催化性能，在140 ℃，4 MPa H₂条件下反应6 h，糠醛的转化率为100%，戊二醇的收率为51.1%，其中，1,5-戊二醇的收率为41.1%。采用程序升温还原(H₂-TPR)、程序升温脱附(H₂-TPD)、X射线光电子能谱(XPS)和拉曼光谱(Raman)等表征技术证实，Cu_0.1Co_2.9Al催化剂具有高活性的原因在于其表面具有最高含量的Cu⁰和CoO_x，且两者具有协同催化效应。Cu⁰用于吸附和活化H₂，CoO_x具有一定氧空位，可以促进糠醛分子中C=O基的吸附与活化，使其快速加氢生成糠醇，同时氧空位可以锚定中间体糠醇中–OH使其在催化剂表面产生C2端斜式吸附，促使C2=C3加氢，弱化C2–O1键使其断裂，进而提高1,5-戊二醇的选择性。

A series of Cu_xCo_3–xAl hydrotalcite-like catalysts with different Cu/Co molar ratios were synthesized by the urea homogeneous precipitation method and used for the direct hydrogenation–hydrogenolysis of furfural to 1,5-pentanediol. The results showed that the Cu/Co molar ratio of the catalyst had a significant effect on its textural properties and catalytic performance. The catalyst exhibited excellent catalytic performance when the molar ratio of Cu/Co was 1∶29 (Cu_0.1Co_2.9Al), and the conversion of furfural was 100% together with 51.1% yield of pentanediol among which the yield of 1,5-pentanediol was 41.1%, under the reaction condition of 140^oC, 4 MPa H₂ for 6 h. Extensive characterization techniques, including temperature-programmed reduction (H₂-TPR), temperature-programmed desorption (H₂-TPD), X-Ray photoelectron spectroscopy (XPS) and Raman confirmed that the excellent catalytic activity of Cu_0.1Co_2.9Al catalyst was attributed to the highest content of Cu⁰ and CoO_x on its surface, and a synergistic catalytic effect was present between them. Typically, Cu⁰ was used to adsorb and activate H₂, and CoO_xwith much oxygen vacancies promoted the adsorption and activation of C=O groups in furfural molecules, leading to the quick conversion of furfural to furfuryl alcohol. In addition, the oxygen vacancies anchored the –OH in the intermediate furfuryl alcohol to produce a C2-terminal oblique adsorption on the catalyst surface. Then it promoted the hydrogenation of C2=C3 with the weakening and cleavage of C2–O1 bond, and enhanced the selectivity of 1,5-pentanediol.