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Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
Dispositivos de almacenamiento y conversión de energía electroquímica baratos y ecológicamente benignos basados en
Bofei Xue1, Zhengwen Fu, Hong Li
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Journal of the American Chemical Society
|July 6, 2006
Resumen
Los investigadores desarrollaron una célula solar sensibilizada por colorante (DSSC) barata y ecológica y una batería de aluminio / yodo utilizando un electrolito de ioduro de aluminio y etanol. El DSSC logró una eficiencia del 5,9%, mostrando el potencial de las soluciones energéticas sostenibles.
Área de la Ciencia:
- La electroquímica es electroquímica.
- Ciencia de los materiales Ciencia de los materiales.
- Energía Sostenible Energía Sostenible
Sus antecedentes:
- El desarrollo de dispositivos electroquímicos rentables y respetuosos con el medio ambiente es crucial para la transición energética.
- Las tecnologías existentes de almacenamiento y conversión de energía a menudo se basan en materiales caros o peligrosos.
Objetivo del estudio:
- Para reportar nuevos, de bajo costo y benignos dispositivos de conversión y almacenamiento de energía electroquímica.
- Para investigar el rendimiento de una célula solar sensibilizada con colorante (DSSC) y una batería primaria de aluminio/yodo (Al/I2) utilizando un nuevo electrolito.
Principales métodos:
- Preparación de un electrolito de yoduro de aluminio-etanol (AlI3-etanol) mediante la mezcla de polvo de aluminio y yodo en etanol en condiciones ambientales.
- Fabricación y ensayo de un DSSC con el electrolito de AlI3-etanol bajo iluminación estándar AM 1.5.
- Construcción y observación de una batería primaria Al/I2 con electrodos de aluminio y yodo, utilizando el electrolito sólido AlI3.
Principales resultados:
- El DSSC demostró una notable eficiencia de conversión de energía del 5,9% en condiciones de AM 1.5.
- La batería primaria Al/I2 exhibió formación espontánea de AlI3 al contacto de electrodos de aluminio y yodo a temperatura ambiente.
- Evidencia de transporte de aniones I a través del electrolito sólido AlI3 que facilita las reacciones electroquímicas en la batería.
Conclusiones:
- El electrolito de AlI3-etanol ofrece un enfoque simple y respetuoso con el medio ambiente para fabricar DSSCs eficientes.
- La batería primaria Al/I2 presenta un nuevo diseño prometedor para el almacenamiento de energía electroquímica, aprovechando la formación espontánea de AlI3 y el transporte de iones en estado sólido.
- Estos hallazgos resaltan el potencial de los sistemas de aluminio y yodo para el desarrollo de dispositivos de energía sostenibles y asequibles.
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