A solar-to-chemical conversion efficiency up to 0.26% achieved in ambient conditions.
Proc Natl Acad Sci U S A
; 118(46)2021 11 16.
Article
em En
| MEDLINE
| ID: mdl-34750272
ABSTRACT
Artificial photosynthesis in ambient conditions is much less efficient than the solar-to-biomass conversion (SBC) processes in nature. Here, we successfully mimic the NADP-mediated photosynthetic processes in green plants by introducing redox moieties as the electron acceptors in the present conjugated polymeric photocatalyst. The current artificial process substantially promotes the charge carrier separation efficiency and the oxygen reduction efficiency, achieving a photosynthesis rate for converting Earth-abundant water and oxygen in air into hydrogen peroxide as high as 909 µmolâ
g-1â
h-1 and a solar-to-chemical conversion (SCC) efficiency up to 0.26%. The SCC efficiency is more than two times higher than the average SBC efficiency in nature (0.1%) and the highest value under ambient conditions. This study presents a strategy for efficient SCC in the future.
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Bases de dados:
MEDLINE
Assunto principal:
Fotossíntese
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China