Atypical stability of exsolved Ni-Fe alloy nanoparticles on double layered perovskite for CO2 dry reforming of methane

Dry reforming of methane simultaneously achieves several sustainability goals: valorizing methane-activating carbon dioxide while producing syngas. The catalyst has an enormous influence on the process viability by controlling activity, selectivity, and stability. A with uniform-sized Ni-Fe alloy nanoparticles anchored into PrBaMn1.6Ni0.3Fe0.1O5+δ double-layered perovskite is assembled via a facile one-step reduction strategy. Our method attains more exsolved Ni (94 %) than common conditions. Ni0.15Fe0.05 shows exceptional stability in 260 h tests at 800 °C, one slowest coke formation rates compared state-of-the-art catalysts. Besides, no deactivation was observed during 40 operation demanding coking conditions (14 bar) where this likely to operate industrially. Via experimental characterizations computational calculations, robust demonstrated its unique balance adsorbed species, which inhibits coking.