Bifunctional metal doping engineering of Ni-supported alumina catalyst for dry methane reforming

Metal–support interactions for heterogeneous catalysis: mechanisms, characterization techniques and applications

“…By incorporating aerosol-assisted evaporation-induced self-assembly (EISA) method in alumina catalysts, Seo and colleagues synthesized nickel-loaded alumina catalysts. 47 Because the nickel particles were smaller than 10 nm, Ni/Sr-MA had the highest coke resistance. As a result of the uniform and broad particle size in the catalyst, the SMSIs were distributed uniformly and effectively, promoting the thermal stability and coke resistance of the catalyst.…”

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

“…Wang et al [122] added an appropriate amount of auxiliary La to tungsten carbide-activated carbon (WC-AC)-loaded Co catalysts for the DRM reaction and found that the addition of La auxiliary helped the catalyst to convert Co 3+ species into active Co 2+ species, increased the ratio of Oa and Ob in the active component and oxygen species, and restrained the formation of unfavorable CoWO 4 species, thus improving the catalyst activity and resistance to carbon deposition. Seo et al [123] investigated the auxiliary effects of Mg, Ca, Sr, Ba, and La on Ni catalysts loaded on alumina and found that all of these alkali metals were loaded on the support in the form of small particles and increased the basicity of the support. It was found that the anti-carbon deposition performance of the catalyst could be significantly enhanced by adding a certain amount of Sr, which was attributed to the fact that the addition of Sr could form a strong interaction with Ni, reducing the particle size of Ni particles and hindering the formation of filamentous carbon C β , resulting in more easily eliminated amorphous carbon C α .…”

A new automated synthesis of a coke-resistant Cs-promoted Ni-supported nanocatalyst for sustainable dry reforming of methane

“…High-performance catalysts for DRM have been developed for high syngas productivity and reaction stability. 10–14 To date, Ni-based nanocatalysts have been extensively studied and have demonstrated the best performance based on their high C–H bond-breaking ability. 15–17 However, it is still difficult to produce inexpensive active catalysts with a simple process that can achieve high stability against sintering and coking in high-temperature reactions.…”