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Logro de una oxidación eficiente y robusta del agua de mar mediante el diseño racional de V2O3/NiFeP compuesto
Quan Li1, Qifeng Han1,2, Hehao Zhou3
1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China. liquan6688@163.com.
Chemical communications (Cambridge, England)
|February 5, 2026
Resumen
Este estudio presenta un novedoso ánodo para la producción de hidrógeno verde a través de la electrólisis del agua de mar. El ánodo V2O3/NiFeP/NF demuestra una mayor durabilidad y eficiencia al repeler los iones cloruro corrosivos.
Área de la Ciencia:
- Electroquímica
- Ciencia de Materiales
- Química Verde
Sus antecedentes:
- La electrólisis directa del agua de mar ofrece una ruta sostenible para la producción de hidrógeno verde.
- La corrosión del ánodo debido a los iones cloruro es un desafío importante para la durabilidad de la electrólisis del agua de mar.
Objetivo del estudio:
- Desarrollar un ánodo duradero y eficiente para la electrólisis alcalina del agua de mar.
- Mitigar la corrosión inducida por cloruro en la electrólisis directa del agua de mar.
Principales métodos:
- Fabricación de un ánodo V2O3/NiFeP/NF utilizando espuma de níquel como soporte de catalizador.
- Investigación del rendimiento del ánodo durante la reacción de evolución de oxígeno en agua de mar alcalina.
- Caracterización electroquímica a densidades de corriente a escala industrial.
Principales resultados:
- El ánodo V2O3/NiFeP/NF repele eficazmente los iones cloruro a través de la repulsión electrostática y las interacciones ácido-base de Lewis.
- Se logró un bajo sobrepotencial (335 mV) a 1000 mA cm-2 y una operación estable durante 1000 horas con una degradación mínima.
- Se demostró un rendimiento estable de un electrolizador de ensamblaje de membrana y electrodo durante 250 horas.
Conclusiones:
- El ánodo V2O3/NiFeP/NF desarrollado mejora significativamente la durabilidad y la eficiencia para la producción de hidrógeno verde a partir de agua de mar.
- Esta innovación aborda los desafíos clave en la electrólisis del agua de mar, allanando el camino para la generación de hidrógeno verde a gran escala.
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