Efficient hydrogenation catalyst designing via preferential adsorption sites construction towards active copper
作者:Dongcheng He、Tao Wang、Teng Li、Xinzhi Wang、Hongli Wang、Xingchao Dai、Feng Shi
DOI:10.1016/j.jcat.2021.06.025
日期:2021.8
Based on the experimental and DFT calculation results, here for the first time we built preferential adsorption sites for nitroarenes by modification of the supported Cu catalysts surface with 1,10-phenathroline (1,10-phen), by which the yield of aniline via reduction of nitroarene is enhanced three times. Moreover, a macromolecular layer was in-situ generated on supported Cu catalysts to form a stable
基于实验和 DFT 计算结果,我们首次通过用 1,10-菲咯啉 (1,10-phen) 修饰负载的 Cu 催化剂表面来构建硝基芳烃的优先吸附位点,由此苯胺的产率通过硝基芳烃的还原增强了三倍。此外,在负载型Cu催化剂上原位生成高分子层,形成稳定的高分子改性负载型Cu催化剂,即CuAlOx-M。通过应用 CuAlOx-M,各种硝基芳烃底物可以顺利反应,以高达 > 99% 的收率和 > 99% 的选择性提供所需的产物。该方法可耐受多种官能团,包括卤化物、酮、酰胺和 C = C 键部分。CuAlOx-M 优异的催化性能可归因于 1,10-phen 改性有利于硝基苯的优先吸附并略微减弱苯胺在负载纳米 Cu 表面上的吸附。