Dendrimer encapsulated Silver nanoparticles as novel catalysts for reduction of aromatic nitro compounds

[摘要] Polyethylene glycol (PEG) core dendrimer encapsulated silver nanoparticles (AgNPs) were synthesized through normal chemical reduction method, where dendrimer acts as reducing and stabilizing agent. The encapsulated AgNPs were well characterized using TEM, DLS and XPS techniques. The synthesized AgNPs showed excellent catalytic activity towards the reduction of aromatic nitro compounds with sodium borohydride as reducing agent and the results substantiate that dendrimer encapsulated AgNPs can be an effective catalyst for the substituted nitro aromatic reduction reactions. Also the kinetics of different nitro compounds reductions was studied and presented.

[发布机构] Department of Chemistry, School of Advanced Sciences, VIT University, Vellore; 632 014, India^1;Department of Chemistry, Thiruvalluvar University, Vellore; 632 115, India^2

[效力级别] 工业技术

[关键词] Aromatic nitro compounds;Chemical reduction methods;Nitro compounds;Nitro-aromatics;Novel catalysts;Reduction reaction;Silver nanoparticles (AgNps);Stabilizing agents