Abstract: Cu/Cr catalyst exhibits superior catalytic hydrogenolysis activity in glycerol hydrogenolysis to 1，2-propanediol for its efficient hydrogenolytic activity towards C—O bond and poor activity towards C—C bond. Cu/Cr catalysts were prepared by different methods and examined for the glycerol hydrogenolysis reaction. Experimental results indicated that preparation methods have large effects on the glycerol hydrogenolysis. Among five catalysts prepared，the catalytic hydrogenolysis activity was found in the order of copper ammonia complexation method > Adkins method > sodium carbonate method > diatomite impregnation method > dry-mixed method. XRD，TG，BET，FT-IR and TPR were used to measure and analyse the structural differences of catalysts prepared by different methods. The correlation and structural effect with catalytic performance were also analysed and discussed.

摘要： Cu/Cr催化剂由于Cu对C—C键氢解活性很低，对C—O键氢解活性很高而成为甘油氢解制1,2-丙二醇效果最好的固体催化剂。采用5种方法制备了Cu/Cr催化剂，并用于甘油的催化氢解反应，发现Cu/Cr催化剂的制备方式极大地影响着其对甘油的催化氢解性能。以5种方法制备的Cu/Cr催化剂中，对甘油的催化氢解性能依次是：铜氨络合沉淀法＞Adkins法＞碳酸钠沉淀法＞硅藻土浸渍法＞干混法。运用XRD、TG、BET、FTIR、TPR等表征手段对制备的催化剂结构进行了表征，详细分析了不同方式制备的催化剂的结构差异，将催化剂的结构表征结果与催化反应性能进行关联分析和讨论，并从理论上解释了催化剂结构差异和催化氢解性能的关系。