Indirect H₂O₂ synthesis without H₂.

ABSTRACT: Industrial hydrogen peroxide (H₂O₂) is synthesized using carbon-intensive H₂ gas production and purification, anthraquinone hydrogenation, and anthrahydroquinone oxidation. Electrochemical hydrogenation (ECH) of anthraquinones offers a carbon-neutral alternative for generating H₂O₂ using renewable electricity and water instead of H₂ gas. However, the H₂O₂ formation rates associated with ECH are too low for commercialization. We report here that a membrane reactor enabled us to electrochemically hydrogenate anthraquinone (0.25 molar) with a current efficiency of 70% at current densities of 100 milliamperes per square centimeter. We also demonstrate continuous H₂O₂ synthesis from the

SUBMITTER: Fink AG 

PROVIDER: S-EPMC10817937 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature