Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 610, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2023.122303
Keywords
Glass-based catalyst; Copper-based nanoparticles; Bottom-up process; Borophosphate glasses; Click reaction
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This work proposes the synthesis of metal-glass hybrid composites for catalytic applications. Copper nanoparticles can be self-supported on a borophosphate glass surface, which serves as an effective substrate for bottom-up growth of nanoparticles. The doped copper glasses were obtained by melt-quenching method. The growth temperature for nanoparticles is relatively low at 430 degrees C, and the process can be completed in a short time. The hybrid composites were used as a catalyst for solvent-free synthesis of 1,2,3-triazoles in Click chemistry.
This work proposes synthesizing metal-glass hybrid composites with applications in catalysis. Metallic copper nanoparticles can be self-supported on the surface of borophosphate glasses, an effective substrate for the growth of auto-supported nanoparticles by bottom-up approach. Doped copper glasses were obtained by the melt-quenching method. The temperature required for nanoparticle growth, determined by temperature programmed reduction, is relatively low as 430 degrees C, and the process can be accomplished in a short time (45 min). In X-ray diffraction analysis, the normalized intensity shows an inverse correlation between the mean glass particle size and the intensity of metallic copper peaks. The glass substrate was characterized by laser-induced breakdown spectroscopy, static laser scattering, and Raman spectroscopy. Scanning electron microscopy was employed to access the morphology, while the crystalline nature of copper was confirmed by X-ray diffraction. The hybrid composites were used as a catalyst on the Click chemistry for 1,2,3-triazoles synthesis under solvent-free conditions.
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