Preparation of Ni/ZrO2/SiO2 Catalyst and its Application in Hydrogenation of CO2 to Methane

The hydrogenation of CO₂ to CH₄ can realize the utilization of CO₂, which has an important implications to both the energy and environment. As a result of the low catalytic activity of the supported Ni/SiO₂ catalyst, the ZrO₂ is added to improve its catalytic performance by the impregnation method. The experimental results show that ZrO₂ is an effective promoter to enhance the low-temperature catalytic activity of Ni/SiO₂ catalyst.