Operando X-ray absorption spectroscopy of phosphomolybdic acid redox mediators for electrochemical conversion of biomass to green hydrogen

Key Points

• The study aims to explore the efficacy of phosphomolybdic acid as a redox mediator in the electrochemical conversion of biomass to produce green hydrogen.
• Utilized operando X-ray absorption spectroscopy to observe redox processes.
• Implemented electrochemical experiments involving phosphomolybdic acid and biomass feedstocks.
• Analyzed reaction dynamics and energy profiles during biomass conversion.
• Identified key redox transformations critical for efficient hydrogen production.
• Demonstrated that redox mediators enhance reaction rates compared to traditional methods.
• Provided insights into the thermodynamic efficiency of biomass-to-hydrogen pathways.