COPPER MICROPARTICLES (MPS Cu) AND CORE-SHELL COPPER@SILVER MICROPARTICLES (MPs Cu@Ag) OBTAINED BY MEANS OF A BUTANOL-GLYCEROL MIXTURE
In this study, the synthesis of Cu MPs and Cu@Ag MPs was carried out using the microwave-assisted polyol method. The reduction of copper acetylacetonate was carried out in a binary mixture of butanol-glycerin solvents with glycerol monostearate (GMS) by microwave heating; accompanied by wet grinding...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Perú |
| Institución: | Sociedad Química del Perú |
| Repositorio: | Revista de la Sociedad Química del Perú |
| Idioma: | español |
| OAI Identifier: | oai:rsqp.revistas.sqperu.org.pe:article/429 |
| Acceso en línea: | https://revistas.sqperu.org.pe/index.php/revistasqperu/article/view/429 |
| Access Level: | acceso abierto |
| Palabra clave: | Polyol Microwave Wet grinding Ultrasound Transmetalation Poliol Microondas Molienda húmeda Ultrasonido Transmetalación |
| Sumario: | In this study, the synthesis of Cu MPs and Cu@Ag MPs was carried out using the microwave-assisted polyol method. The reduction of copper acetylacetonate was carried out in a binary mixture of butanol-glycerin solvents with glycerol monostearate (GMS) by microwave heating; accompanied by wet grinding and ultrasonic pulses. The suspension of Cu MPs was coated with silver through galvanic deposition and the transmetalation reaction using a silver nitrate solution, at room temperature and under darkness, thus obtaining Cu@Ag MPs. All microparticles were characterized with XRD, SEM and EDX techniques. With the SEM results, it is deduced that the Cu MPs adopted different morphologies and sizes depending on the butanol-glycerin proportions used during the synthesis, with the butanol-glycerin proportion being 2:3, which allowed obtaining Cu MPs with a more crystalline morphology. average diameter of 3.52 μm. Likewise, the Cu@Ag MPs turned out to be amorphous, forming clusters with average diameters of 0.33μm, 0.52 μm and 0.83 μm when the molar ratios of Cu:Ag 1:1, 2:1 and 3:1 were used. , respectively. The 1:1 Cu@Ag MPs had a more homogeneous coating compared to the others. |
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