Síntesis de nanopartículas de PdACu soportadas sobre carbón para la oxidación de etanol y bio-alcohol
DOI:
https://doi.org/10.29105/qh12.02-332Palabras clave:
Bio-alcohol, Activated carbon, Electro-oxidation, Ethanol, NanoparticlesResumen
Este trabajo reporta la síntesis de un catalizador bimetálico compuesto por nanopartículas de Pd y Cu soportados en carbón
Vulcan activado (Pd-Cu/C). El catalizador Pd-Cu/C se sintetizó por el método de poliol asistido mediante microondas y se
caracterizó mediante el estudio de sus propiedades fisicoquímicas y estructurales con diversas técnicas, tales como:
Microscopía electrónica de barrido, Espectroscopía de dispersión de energía, Espectrometría de retrodispersión de
Rutherford y Difracción de Rayos —X. Estas técnicas mostraron la formación de la aleación de Pd-Cu/C con una estructura
cubica cristalina. La caracterización electroquímica del catalizador reportó una excelente actividad en la electro-oxidación
de etanol (1.0 M) y bio-etanol (1.0 M) en medio alcalino (1 M KOH). Asimismo, el catalizador mostró ser estable durante
100 ciclos (con un potencial aplicado de -0.19 V vs el electrodo de Calomel saturado) sin mostrar envenenamiento en el
catalizador por CO ni generar sub-productos.
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