A Novel Mixed Ag–Pd Nanoparticles Supported on SBA Silica Through [DMAP-TMSP-DABCO]OH Basic Ionic Liquid for Suzuki Coupling Reaction

• Published in: Topics in catalysis Vol. 68; no. 13; pp. 1287 - 1296
• Main Authors: Shaikh, Nilophar M., Adimule, Vinayak, Bagihalli, Gangadhar B., Keri, Rangappa S.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.07.2025; Springer Nature B.V
• Subjects: Ashes; Bagasse; Catalysis; Catalytic activity; Characterization and Evaluation of Materials; Chemical reactions; Chemical synthesis; Chemistry; Chemistry and Materials Science; Coupling; Ethanol; Feed rate; Hybrid systems; Industrial Chemistry/Chemical Engineering; Ionic liquids; Nanoparticles; Original Paper; Palladium; Pharmacy; Physical Chemistry; Recyclability; Reducing agents; Silicon dioxide; Silver; Sugarcane; Ag-PdNPs_(DMAP-TMSP-DABCO)OH_SBA; Suzuki coupling reaction; Mixed metallic nanoparticles; Sugarcane bagasse ash (SBA) silica
• ISSN: 1022-5528; 1572-9028
• DOI: 10.1007/s11244-022-01586-6

In present protocol, we have a developed a mixed metallic Ag–Pd nanoparticles (NPs) supported on sugarcane bagasse ash silica through immobilization of 1-[3-(dimethylamino) propyl] -3-(3-trimethoxysilylpropyl)-1,4-diazabicyclo [2.2.2] octan-1-ium hydroxide]ionic liquid Ag-PdNPs_(DMAP-DABCO)OH_SBAsilica. Ag-PdNPs_(DMAP-TMSP-DABCO) OH_SBA silica catalytic system was prepared by the method of reduction using NaBH 4 as reducing agent at controlled feed rate. Further the obtained catalytic system was used as effective catalyst for ligand free Suzuki coupling reaction in ethanol solvent system at 80 °C. Synthesized catalytic system was characterized by using SEM–EDS, FT-IR, TGA–DSC and XRD analysis. The synthesized mixed metallic Ag-PdNPs catalytic system provides better catalytic activity than mono metallic nanoparticles. It is observed that, the ionic liquid and mixed metallic nanoparticles hybrid system supported on natural waste rice husk ash silica provides better stability with high efficiency and enhances the physicochemical properties through intermolecular interactions and also consequently provides ease in recyclability up to next seven turns without loss in catalytic efficiency.