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Transportadores de hidrógeno orgánico líquido electroquímicamente activables y sus aplicaciones
Juhyun Cho1, Byeongyoon Kim2, Sandhya Venkateshalu2
1Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea.
Journal of the American Chemical Society
|July 13, 2023
Resumen
Los transportadores de hidrógeno orgánico líquido electroquímicos (EC-LOHC) ofrecen una alternativa más segura y eficiente a los sistemas termoquímicos para el almacenamiento de hidrógeno. Esta tecnología permite un funcionamiento a menor temperatura y presión, reduciendo el desperdicio de energía y mejorando la practicidad.
Área de la Ciencia:
- Almacenamiento de energía
- Química ecológica
- La electroquímica
Sus antecedentes:
- El hidrógeno es una alternativa de energía limpia a los combustibles fósiles.
- El almacenamiento y transporte de hidrógeno gaseoso es un desafío.
- Los actuales transportadores de hidrógeno orgánico líquido termoquímicos (LOHC) consumen mucha energía debido a los requisitos de alta temperatura y presión.
Objetivo del estudio:
- Proponer los LOHC electroquímicos (CE) como una solución de almacenamiento de hidrógeno más eficiente y práctica.
- Explorar los candidatos a EC-LOHC y sus electrocatalizadores asociados.
- Presentar los sistemas integrados de pilas de combustible que utilizan los EC-LOHC.
Principales métodos:
- Examen y discusión de los candidatos a la CE-LOHC (por ejemplo, isopropanol, compuestos fenólicos, ácidos orgánicos).
- Análisis de los conceptos de diseño de electrocatalizadores basados en homo/hetero.
- Propuesta de sistemas de pilas de combustible para la deshidrogenación electroquímica.
Principales resultados:
- Los EC-LOHC demuestran potencial para el almacenamiento eficiente y seguro de hidrógeno a temperaturas y presiones más bajas.
- Se identifican varios candidatos a EC-LOHC y estrategias de electrocatálisis.
- Los sistemas integrados de pilas de combustible ofrecen una vía viable para la utilización del hidrógeno.
Conclusiones:
- Los LOHC electroquímicos representan un avance significativo con respecto a los métodos termoquímicos.
- Es fundamental seguir investigando los materiales y los electrocatalizadores de la CE-LOHC.
- La tecnología EC-LOHC es prometedora para los sistemas prácticos de energía de hidrógeno.
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