The remarkable synergetic effect between Pd and Cu, and basic nitrogen sites on the support effectively stabilize the nanoparticles and enhance the catalytic activity.
Chromium(III)‐doped layered double hydroxide supported copper nanoparticles (Cr3+‐Cu0/LDH) has been prepared as an efficient and reusable catalyst using simple and versatile synthetic method. Effect of doping of Cr3+ to the layered double hydroxide supported Cu0 nanoparticles was evaluated for the oxidation of alcohols and hydrocarbons by varying the amount of Cr3+ loading in the catalyst. The catalyst with Cu:Cr ratio= 1:1 afforded highest catalytic activity among the synthesized catalysts towards the oxidation using TBHP (tBuOOH) in aqueous medium and was structurally characterized by Fourier Transform Infrared Spectroscopy (FTIR), X‐Ray Diffraction Spectroscopy (XRD), Field Emission Gun‐Scanning Electron Microscopy (FEG‐SEM), Energy‐dispersive X‐Ray Spectroscopy (EDX), High Resolution‐Transmission Electron Spectroscopy (HR‐TEM), Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP‐AES) and X‐Ray Photoelectron Spectroscopy (XPS). The high activity and selectivity was assigned to the synergistic electronic interaction between copper(0) nanoparticles and chromium(III) ions based on experimental data and XPS results. Moreover, the high stability of Cu0 and Cr3+ in the catalyst was attributed to the strong metal‐support interactions, which make the catalyst recyclable upto five runs.
A series of novel 6-{5-aryl- 4H-1,2,4-triazol-3-ylthio}methyl-3-substituted-[1,2,4]triazolo [3,4-b] [1,3,4] thiadiazoles and 2-{(5-aryl-4H-1,2,4-triazol-3-ylthio)-N-4-aryl}acetamides containing 1,2,4-triazole moiety were synthesized and characterized by 1 H, 13 C, DEPT, and D 2 O. The synthesized compounds were evaluated for their antibacterial activity against three strains of bacteria along with antifungal activity against five fungal species. It has been found that tested compounds showed moderate activity.
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