Effect of calcination temperature of LaNiO₃ on CuO/LaNiO₃ catalyst for hydrogen production via methanol steam reforming

The LaNiO₃ perovskite support was synthesized by sol-gel method. The CuO/LaNiO₃ catalyst was prepared by impregnation method. The catalyst was characterized by XRF, XRD, BET, H₂-TPR and XPS. The effect of calcination temperature of LaNiO₃ perovskite on the structure of CuO/LaNiO₃ catalyst and its catalytic performance for methanol steam reforming were investigated. The results show that the calcination temperature of the support mainly affects the surface oxygen vacancy of the catalyst, the interaction between the active component and the support. When the calcination temperature of the support is 800℃, the surface of the catalyst has more oxygen vacancy, and the interaction between the active component and the support is stronger. Therefore, the hydrogenation activity of methanol steam reforming is higher.