New Insight on Carbon Dioxide–Mediated Hydrogen Production
Ładowanie...
Data
2022-04-03
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Chemistry Europe
Abstrakt
A new approach to hydrogen production from water is described. This simple method is based on carbon dioxide-mediated water decomposition under UV radiation. The water contained dissolved sodium hydroxide, and the solution was saturated with gaseous carbon dioxide. During saturation, the pH decreased from about 11.5 to 7–8. The formed bicarbonate and carbonate ions acted as scavengers for hydroxyl radicals, preventing the recombination of hydroxyl and hydrogen radicals and prioritizing hydrogen gas formation. In the presented method, not yet reported in the literature, hydrogen production is combined with carbon dioxide. For the best system with alkaline water (0.2 m NaOH) saturated with CO2 under UV-C, the hydrogen production amounted to 0.6 μmol h−1 during 24 h of radiation.
Opis
Słowa kluczowe
carbon dioxide fixation, carbon storage, hydrogen, photochemistry, photolysis
Cytowanie
Morawski, A. W., et al. (2022). New Insight on Carbon Dioxide–Mediated Hydrogen Production. ChemistryOpen, 11, e202100262. doi 10.1002/open.202100262.