Formation Combined with Intercalation of Ni and Its Alloy Nanoparticles within Mesoporous Silica for Robust Catalytic Reactions

• DOI: 10.1021/acsami.8b07896
• Publication Date: 2018-08-09T01:37:36Z
• Authors: Bowen Li; Hua Chun Zeng
• Keywords: Bimetallic strip; Nickel sulfide

Intercalation of silica-supported nickel nanoparticles within mesoporous silica has been achieved through chemical reduction silicate with ( mSiO2) coated on inner and outer surfaces. Formation was controlled at silicate-silica interface well-confined by mSiO2 coating. Doping other transition metals accomplished the stage formation, because similarity in critical stability constants respective metal salts. Doped silicates were able to produce nickel-based bimetallic trimetallic alloy final dual-shell configuration. This type catalyst tested for both liquid- gas-phase reactions, all showing good activity selectivity. Ni could serve as active or enhancer alloyed different reactions. Especially selective hydrogenation trans-cinnamaldehyde, 100% selectivity toward hydrocinnamaldehyde full conversion without using noble metals. Spent catalysts cases showed no changes terms morphology crystal structure, indicating this robust under such reaction conditions, including gas-solid systems.