A review on bi/polymetallic catalysts for steam methane reforming

Blue hydrogen production by steam methane reforming (SMR) with carbon capture is far the most commercialised method, and addition of a simultaneous in-situ CO2 adsorption process, sorption-enhanced (SESMR) can further decrease cost H2 production. Ni-based catalysts have been extensively used for SMR because their excellent activity relatively low price, but deposition, sulphation, sintering lead to catalyst deactivation. One effective solution introduce additional metal element(s) improve overall performance. This review summarizes recent developments on bi/polymetallic SMR, including promoted nickel-based other transition metal-based materials. The mainly focuses experimental studies, also includes results from simulations evaluate synergistic effects selected metals an atomic point view. An outlook provided future development catalysts.