近日，中国科学院大连化物所卢巍团队研究了一种用于间苯二甲腈加氢制备间苯二甲胺的高效稳定的页硅酸盐衍生镍催化剂颗粒。相关论文于2026年2月12日发表在《颗粒学报》杂志上。

腈类化合物加氢制备伯胺备受关注，但由于副反应易发，其选择性调控仍具挑战。

研究组制备了页硅酸盐衍生的Ni/SiO₂催化剂用于间苯二甲腈（IPN）选择性加氢制备间苯二甲胺（m-XDA），在80°C、5 MPa的温和反应条件下连续运行1100小时，实现100%转化率及最高98.1%的选择性。机理研究表明，在氨蒸过程中Ni₂SiO₄首先在SiO₂基底上生长，随后在还原步骤中分解形成具有高镍分散度的Ni/SiO₂-AE催化剂。Ni⁰与SiO₂基底间的强相互作用赋予Ni/SiO₂-AE催化剂优异的耐久性，而丰富的路易斯酸位点促进了IPN的吸附，布朗斯特酸则通过双功能机制促进相邻镍纳米颗粒吸附的H₂进行加氢反应。

附：英文原文

Title: A highly efficient and stable phyllosilicate-derived Ni catalyst particles for isophthalonitrile hydrogenation to m-xylylenediamine

Author: Xingkun Chen d, Yuhong Kang a, Wei Lu b c

Issue&Volume: 2026/02/12

Abstract: Hydrogenation of nitriles to primary amines has attracted significant attention, and tuning its selectivity remains a challenge due to the easy occurrence of side reactions. Herein, a phyllosilicate-derived Ni/SiO2 catalyst was prepared to selectively hydrogenate isophthalonitrile (IPN) to m-xylylenediamine (m-XDA), achieving 100% conversion and at most 98.1% selectivity under mild reaction conditions of 80 °C and 5 MPa in a 1100 h run. Mechanism investigation suggests that Ni2SiO4 first grows on the SiO2 substrate during the ammonia evaporation step and then decomposed in the reduction step to form a Ni/SiO2-AE catalyst with high Ni dispersion. The strong interaction between Ni0 and SiO2 substrate invests the Ni/SiO2-AE catalyst with robust durability, and the abundant amount of Lewis acid sites facilitates the adsorption of IPN and the Brnsted acid promotes its hydrogenation by the H2 adsorbed on the adjacent Ni nanoparticle in a bifunctional manner.

DOI: 10.1016/j.partic.2026.02.007

Source: https://www.sciencedirect.com/science/article/abs/pii/S1674200126000726