Enhancing ammonia catalytic production over spatially confined cobalt molybdenum nitride nanoparticles in SBA-15

Ternary Co3Mo3N nitrides are reported to exhibit high catalytic activity in ammonia synthesis. However, synthesis of ternary requires thermal treatments at elevated temperatures and reactive atmospheres that lead unavoidable surface reduction (∼ 10 m2 g-1). In this work, we have developed a novel approach improve the through its dispersion into area silica-based support (SBA-15). During ammonolysis conditions reaction, SBA-15 demonstrated good chemical stability maintaining an ordered porous structure (> 500 For application synthesis, supported cobalt molybdenum catalysts with different metal loading (10, 20 30 wt%) were prepared by modified impregnation-infiltration protocol their studied. The CoMo nitride nanoparticles structures resulted improvement structural textural properties as evidenced XRD analysis, STEM-EDS, N2- physisorption (e.g. 10-CoMo-N/SBA-15: 348 Nevertheless, composition CoMo-N/SBA-15 was found be similar non-supported Co3Mo3N. Furthermore, displayed enhanced (1714, 1429 810 µmol gactive phase-1 h-1 corresponding oxide loadings 10, 20, wt% respectively) outperform classical catalyst (259 gcatalyst-1 h-1). results work highlights for design nitride-based superior