Rahimpour Elham, Amini Mojtaba, Khandar Ali Akbar, Seidi Farzad
Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, P.O. Box 5166616471, Tabriz, Iran.
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China.
Sci Rep. 2025 May 14;15(1):16705. doi: 10.1038/s41598-025-96984-7.
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@CaTiO catalyst demonstrated remarkable reusability, easy separation, and sustainable performance, positioning it as a promising candidate for green and efficient organic transformations in aqueous media.
通过溶胶-凝胶法合成了一种新型的Co@CaTiO₃多相催化剂，将钴纳米颗粒掺入钙钛矿骨架中。该催化剂在通过叠氮化物-炔烃环加成反应（点击反应）水相合成1,2,3-三唑中表现出卓越的效率。系统地优化了包括催化剂负载量、温度、时间和溶剂在内的关键反应参数，以实现高产率。使用傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、热重分析（TGA）、能量色散X射线光谱（EDX）、电感耦合等离子体发射光谱（ICP-OES）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、布鲁诺尔-埃米特-特勒（BET）表面积分析和X射线光电子能谱（XPS）进行的综合表征揭示了其高表面积、热稳定性以及钴纳米颗粒的均匀分布。Co@CaTiO催化剂表现出显著的可重复使用性、易于分离和可持续性能，使其成为水相中绿色高效有机转化的有前途的候选者。
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