Condensation of Active Methylene and Substituted Aldehydes over Mesoporous Nickel Oxides Nanostructures: A Combined Experimental and DFT Study

摘要

Mesoporous NiO nanoarchitectures (NAs) with controlled hexagonal platelet- and flower-like morphology were synthe- sized using facile hydrothermal methods in different reaction conditions. The NiO NAs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption /desorption isotherms, and wide-angle X- ray diffraction. It was found that controlled morphology, large surface areas, and high crystallinity of NiO NAs offered high catalytic reactivity toward Knoevenagel condensation reactions.