Modifying Ni active sites with Ga and Co and optimizing reactant feed conditions to improve low temperature activity and stability in the dry reforming of methane

Key Points

• The aim is to enhance low-temperature activity and stability of nickel catalysts in dry reforming of methane.
• Modified nickel catalyst with gallium and cobalt
• Utilized 1.5 mol% water in reactant feed
• Conducted experiments at 700 °C with a CH4/CO2 ratio of 1:1
• Operated at 1.2 bar and a gas hourly space velocity of 60,000 mL g cat−1 h−1
• Water addition significantly enhances catalyst performance
• Optimized conditions improve both activity and stability
• Effective modifications lead to better low-temperature performance