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Updated: May 17, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Azide-alkyne cycloaddition reactions over cobalt (0) nanoparticles supported on CaTiO3 perovskite
Elham Rahimpour1, Mojtaba Amini2, Ali Akbar Khandar3
1Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, P.O. Box 5166616471, Tabriz, Iran.
Abstract:
A novel Co@CaTiO₃ heterogeneous catalyst was synthesized via the sol-gel method, incorporating cobalt nanoparticles into a perovskite framework. The catalyst exhibited exceptional efficiency in the aqueous-phase synthesis of 1,2,3-triazoles through azide-alkyne cycloaddition (click reaction). Key reaction parameters, including catalyst loading, temperature, time, and solvent, were systematically optimized to achieve high yields. Comprehensive characterization using Fourier-Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction (XRD), Thermogravimetric Analysis (TGA), Energy Dispersive X-Ray Spectroscopy (EDX), Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area analysis, and X-ray Photoelectron Spectroscopy (XPS) revealed its high surface area, thermal stability, and uniform distribution of cobalt nanoparticles. The Co@CaTiO3 catalyst demonstrated remarkable reusability, easy separation, and sustainable performance, positioning it as a promising candidate for green and efficient organic transformations in aqueous media.
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