Título:
A norbornadiene-based molecular system for the storage of solar–thermal energy in an aqueous solution: study of the heat-release process triggered by a Co(II)-complex
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Autor:
Castro, Franco
Gancheff, Jorge S.
Ramos, Juan C.
Seoane, Gustavo
Bazzicalupi, Carla
Bianchi, Antonio
Ridi, Francesca
Savastano, Matteo
Gancheff, Jorge S.
Ramos, Juan C.
Seoane, Gustavo
Bazzicalupi, Carla
Bianchi, Antonio
Ridi, Francesca
Savastano, Matteo
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CUADRICICLANO
HIDROCARBUROS
ALMACENAMIENTO DE LA ENERGIA
ENERGIA SOLAR
NORBORNADIENO
HIDROCARBUROS
ALMACENAMIENTO DE LA ENERGIA
ENERGIA SOLAR
NORBORNADIENO
Año de publicación:
2023
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Resumen:
It is urgent yet challenging to develop new environmentally friendly and cost-effective sources of energy. Molecular solar thermal (MOST) systems for energy capture and storage are a promising option. With this in mind, we have prepared a new water-soluble (pH > 6) norbor nadiene derivative (HNBD1) whose MOST properties are reported here. HNBD1 shows a better matching to the solar spectrum compared to unmodified norbornadiene, with an onset absorbance of λonset = 364 nm. The corresponding quadricyclane photoisomer (HQC1) is quantitatively generated through the light irradiation of HNBD1. In an alkaline aqueous solution, the MOST system consists of the NBD1−/QC1− pair of deprotonated species. QC1− is very stable toward thermal back-conversion to NBD1−; it is absolutely stable at 298 K for three months and shows a marked resistance to temper ature increase (half-life t1/2 = 587 h at 371 K). Yet, it rapidly (t1/2 = 11 min) releases the stored energy in the presence of the Co(II) porphyrin catalyst Co-TPPC (∆Hstorage = 65(2) kJ·mol−1 ). Under the explored conditions, Co-TPPC maintains its catalytic activity for at least 200 turnovers. These results are very promising for the creation of MOST systems that work in water, a very interesting solvent for environmental sustainability, and offer a strong incentive to continue research towards this goal.
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MDPI
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Molecules, 28 (21), 2023. 16 h.
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Castro, F., Gancheff, J., Ramos, J., Seoane, G. y otros. "A norbornadiene-based molecular system for the storage of solar–thermal energy in an aqueous solution: study of the heat-release process triggered by a Co(II)-complex". Molecules. [en línea] 2023, 28 (21), 16 p. DOI: 10.3390/molecules28217270
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Licencia Creative Commons Atribución (CC - By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| A norbornadiene-based molecular system for the storage of solar–thermal energy in an aqueous solution.pdf | Artículo | 1.74 MB | Adobe PDF |