Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

Molecules

Magnus Rønning¹  Katarzyna Świrk¹  Monika Motak²  Dominik Wierzbicki²  Patrick Da Costa³  Paulina Summa³  Ivo Alxneit⁴ 

[1] Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway;Faculty of Energy and Fuels, AGH University of Science and Technology, 30-059 Kraków, Poland;Institut Jean Le Rond d’Alembert, Sorbonne Université, CNRS UMR 7190, 78210 Saint-Cyr-L’Ecole, France;Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland;

关键词: methanation;    hydrotalcite;    vanadium;    nickel catalyst;    mixed oxides;    CO₂ hydrogenation;   

DOI  :  10.3390/molecules26216506

来源: DOAJ

【 摘 要 】

Co-precipitated Ni-Mg-Al hydrotalcite-derived catalyst promoted with vanadium were synthesized with different V loadings (0–4 wt%) and studied in CO₂ methanation. The promotion with V significantly changes textural properties (specific surface area and mesoporosity) and improves the dispersion of nickel. Moreover, the vanadium promotion strongly influences the surface basicity by increasing the total number of basic sites. An optimal loading of 2 wt% leads to the highest activity in CO₂ methanation, which is directly correlated with specific surface area, as well as the basic properties of the studied catalysts.

【 授权许可】

Unknown