Efficient Red-Light-Driven Hydrogen Evolution with an Anthraquinone Organic Dye.
J Am Chem Soc
; 144(43): 19680-19684, 2022 11 02.
Article
de En
| MEDLINE
| ID: mdl-36260355
ABSTRACT
The direct utilization of the full solar spectrum to obtain renewable fuels remains a challenge because the conversion of the low-energy light (red and near-infrared) is difficult. Current light-driven systems show activity for hydrogen generation with the high-energy part of sunlight. Here we report the use of a simple anthraquinone organic dye in an artificial photosynthetic system that promotes efficient red-light-driven production of hydrogen. The system contains no noble metal and exhibits a turnover number greater than 0.78 million and a quantum yield of 30.6% at 630 nm. A mechanistic study revealed that the excited-state and redox properties of the chromophore are critical to achieving high activity and stability.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Hydrogène
/
Lumière
Langue:
En
Journal:
J Am Chem Soc
Année:
2022
Type de document:
Article
Pays d'affiliation:
Chine