Electrodeless hydrogen production from seawater using femtosecond laser pulses.

ABSTRACT: This study presents the first experimental evidence of direct H₂ production from seawater without harmful gas emissions (e.g., CO₂, Cl₂), which uses multiphoton ionization water splitting with a femtosecond pulse laser. According to H₂ analysis using a gas chromatograph, the H₂ production rate in seawater was 70 μmol h^-1, which was approximately 3.3 times more than the ultrapure water case reported in the literature. This positive effect derives from focusing through the cuvette wall and the more significant Kerr effect in seawater. Such ion enhancement was observed in the case of seawater and diluted seawater compared with the ultrapure water case, but excessive salt can lead to ion suppression and adverse effects. T

SUBMITTER: Kuwahara A 

PROVIDER: S-EPMC8985296 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature