In this work, we report an efficient strategy for controllable decoration of CNTs supported Pt catalysts with NiO by atomic layer depositon (ALD). The number of NiO ALD cycle has a significant effect on the catalytic activity and selectivity of Pt/CNTs catalyst for the tandem hydrogenation of nitro compounds to aromatic amines. Suitable amount of NiO decoration (e.g., 10-cycle NiO) could simultaneously improve the activity and selectivity of Pt/CNTs catalyst. The ALD deposited NiO species contact with Pt nanoparticles, providing unique surface structure and targeted Pt electronic properties for chemoselective tandem hydrogenation of nitro compounds.

在这项工作中，我们报告了一种通过NiO原子层沉积（ALD）可控地装饰带有Ni的CNTs负载Pt催化剂的有效策略。NiO ALD循环的次数对Pt / CNTs催化剂将硝基化合物串联氢化为芳族胺的催化活性和选择性有重大影响。适量的NiO装饰（例如10周期NiO）可以同时提高Pt / CNTs催化剂的活性和选择性。ALD沉积的NiO物种与Pt纳米颗粒接触，为硝基化合物的化学选择性串联氢化提供独特的表面结构和目标Pt电子性能。