Influence of alloying platinum on the hydrogenation of chloronitrobenzene over PtM/ZrO_2 catalysts with M=Cr,Mn,Fe,Co,Ni,Cu

摘要

Hydrogenation of chloronitrobenzene(CNB)over PtM/ZrO_2(M=Cr,Mn,Fe,Co,Ni,Cu)catalysts has been studied in ethanol at 303 K and normal pressure.The results show that the hydrogenation of CNB can be carried out over PtM/ZrO_2 catalysts.The order of the hydrogenation rates of CNB is p>m>o,and the yield of chloroaniline(CAN)is p>o>m.PtFe/ZrO_2 catalyst shows the highest catalytic activity on the hydrogenation of CNB.PtNi/ZrO_2 catalyst shows good yield of CNB to CAN,and 93.3 mol% for o-CAN,98.0 mol% for m-CAN and 98.5 mol% for p-CAN,respectively.