Are Ni/ and Ni5Fe1/biochar catalysts suitable for synthetic natural gas production? A comparison with ?-Al2O3 supported catalysts

Among challenges implicit in the transition to post–fossil fuel energetic model, finite amount of resources available for technological implementation CO2 revalorizing processes arises as a central issue. The development fully renewable catalytic systems with easier metal recovery strategies would promote viability and sustainability synthetic natural gas production circular routes. Taking Ni NiFe catalysts supported over ?-Al2O3 oxide reference materials, this work evaluates potentiality biochar methanation. competitive was found dependent on creation basic sites catalyst surface. Displaying lower Turn Over Frequencies than Ni/Al catalyst, absence achieved Ni/C related depleted performances. For catalysts, analogous Ni5Fe1 alloys were constituted both alumina supports. highest specific activity series, exhibited by NiFe/C surface along weaker NiFe–C interactions, which resulted increased Ni0:NiO populations under reaction conditions. In summary, present establishes supports material consider within future low-carbon panorama.