Effects of alcohols and dissolved gases on sonochemical generation of hydrogen in a 300 kHz sonoreactor.

ABSTRACT: The sonochemical generation of hydrogen (H₂) was investigated using various water/alcohol solutions under argon (Ar) 100 % in a 300 kHz sonoreactor. Five types of alcohols-methanol, ethanol, isopropanol, n-propanol, and n-butanol-were used at various concentrations (0 - 100 % v/v). The H₂ generation rate in water was 0.31 μmol/min in the absence of alcohols. The H₂ generation rate increased, peaked, and then decreased as the alcohol concentration increased. The concentrations used for the peak H₂ generation were 5 %, 1 %, 0.5 %, 0.5 %, and 0.1 % for methanol, ethanol, isopropanol, n-propanol, and n-butanol, respectively. The highest generation rate (5.46 μmol/min) was obtained for methanol 5 % among all conditions in this study, and no H₂

SUBMITTER: Choi J 

PROVIDER: S-EPMC10656218 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature