Facile single-step hydrothermal approach was developed for the synthesis of Ni and Pd decorated spindle-shape defected CeO₂ catalyst for reduction of nitroarene compounds. A Ni-Pd/CeO₂ catalyst showed superior activity toward nitroarene reduction than its nickel monometallic counterpart (Ni/CeO₂). Addition of very small amount of Pd to Ni-CeO₂ catalyst largely changed its morphology, size of active nanoparticles (NPs) as well as its catalytic activity. A synergy between active metals (Pd, Ni) and support (CeO₂), strong metal-support interactions, ceria defect sites with high concentrations of Ce⁺³ and oxygen vacancy sites were suggested to promoting the superior activity of Ni-Pd/CeO₂ compared to Ni/CeO₂ catalyst.

开发了一种简便的单步水热法，用于合成Ni和Pd装饰的纺锤形缺陷的CeO ₂催化剂，以还原硝基芳烃化合物。Ni-Pd / CeO ₂催化剂对硝基芳烃的还原活性优于其镍单金属对应物（Ni / CeO ₂）。在Ni-CeO ₂催化剂中添加非常少量的Pd极大地改变了其形态，活性纳米颗粒（NPs）的尺寸以及其催化活性。活性金属（Pd，Ni）和载体（CeO ₂）之间的协同作用，强金属-载体相互作用，高浓度Ce ^+3的二氧化铈缺陷位与Ni / CeO ₂催化剂相比，建议使用氧空位来促进Ni-Pd / CeO ₂的优异活性。