Ni–V catalysts for efficient low-temperature CO₂ methanation

CO₂ methanation offers a powerful route for converting greenhouse gases into synthetic fuels within Power-to-Gas systems. This study focuses on the improvement of Ni/Al₂O₃ catalysts through vanadium (V₂O₅) and calcium-based support modification to enable efficient operation at low temperatures and facilitate scale-up.

The optimized Ni–V systems demonstrate outstanding performance in CO₂ hydrogenation at atmospheric pressure, achieving up to 97% CH₄ yield at 623 K and maintaining full methane selectivity up to 673 K. The superior activity is attributed to the formation of Ni–V alloyed nanoparticles, which enhance catalytic efficiency and stability.

These results highlight a promising pathway toward scalable, high-performance catalysts for CO₂ valorization and renewable methane production.

Learn more: https://lnkd.in/efwrAaE

This research was supported by receiving funding from the Foundation for Polish Science Reintegration/2016-1/5 Project “Waste to fuel—Catalyst and process development for waste biomass valorization”, cofinanced by the European Regional Development Fund under the Intelligent Development Operational Program 2014–2020 (POIR), Axis IV: Increasing the scientific and research potential, Measure 4.4: Increasing the human potential in the R&D sector, awarded to I.S.P., with connected subcontracting agreement 1414/2018 given to G.G. for the Task “CO₂ valorization over V-modified Ni catalyst supported on various supports”. I.S.P. gratefully acknowledges support from the French Government for collaboration with Sorbonne University Project “Catalytic conversion of CO₂ to hydrocarbons: The Ni–V catalyst selectivity and durability in in plasma assisted hydrogenation of CO₂ to methane”