1,3,5-benzenetricarboxylate (BTC) and 4,4′-bipyridine (BIPY) are employed in the synthesis of dual ligands Ni-MOFs. The magnetic [email protected] nanocatalyst is prepared by direct pyrolysis of Ni-MOFs in N₂ atmosphere, which exhibited excellent activity in selective hydrogenation of nitrobenzene (NB) to aniline (AN) at 60 °C, 2.0 MPa H₂. The conversion of NB can reach 99.1 mol%, and the selectivity of AN is over 99 %. A series of characterizations are obtained by XRD, Raman, XPS, SEM, TEM, TPR and TGA. It is found that the synergic effect of Ni species and N contributes to the increase of catalytic activity of the catalyst. Cycling tests proved that the prepared catalyst could be reused ten times without a visible reduction in catalytic activity of hydrogenation. The excellent stability and activity of [email protected] nanocatalyst could be assigned to the porosity of carbon material doped with nitrogen, derived from dual ligands Ni-MOFs.

1,3,5-苯三羧酸酯（BTC）和4,4'-联吡啶（BIPY）用于合成双配体Ni-MOF。磁性[受电子邮件保护的]纳米催化剂是通过在N ₂气氛中直接热解Ni-MOF制备的，该催化剂在60°C，2.0 MPa H _2的条件下将硝基苯（NB）选择性氢化成苯胺（AN）表现出优异的活性。。NB的转化率可达到99.1mol％，AN的选择性超过99％。通过XRD，拉曼，XPS，SEM，TEM，TPR和TGA获得了一系列表征。发现Ni物种和N的协同作用有助于增加催化剂的催化活性。循环测试证明，所制备的催化剂可以重复使用十次，而不会明显降低氢化催化活性。[受电子邮件保护的]纳米催化剂的出色稳定性和活性可以归因于源自双配体Ni-MOF的氮掺杂碳材料的孔隙率。