Sr Promoted Ni/W-Zr Catalysts for Highly Efficient CO Methanation: Unveiling the Role of Surface Basicity.

This study explores the employment of CO methanation for carbon dioxide utilization and global warming mitigation. For the first time, in this work, we combine the interesting properties of the WO-ZrO support and the benefits of Sr to improve the performance of Ni-based catalysts in this reaction. Sr loading on 5Ni/W-Zr samples is increased to 3 wt %, resulting in improved surface basicity through strong basic site formation.