What question did this study set out to answer?

The aim is to explore a new photoanode for efficient hydrogen production from glycerol.

May 28, 2026Chemical Engineering Journal0 citationsOpen Access

A novel CaTiO3/WO3/BiVO4 heterostructured photoanode for simultaneous glycerol valorization and hydrogen evolution

LDLeonardo A. Delgado IMIvan Merino-Garcia SCSara Crespo

Key Points

The aim is to explore a new photoanode for efficient hydrogen production from glycerol.
Developed a CaTiO3/WO3/BiVO4 heterostructured photoanode.
Conducted glycerol-driven photoelectrochemical (PEC) hydrogen evolution experiments.
Evaluated system performance in a flow-cell operation.
Achieved high Faradaic efficiencies for glycerol oxidation and hydrogen evolution.
Demonstrated significant reduction in energy input compared to traditional methods.
Improved charge separation limits recombination, enhancing overall performance.

Abstract

• First CaTiO 3 /WO 3 /BiVO 4 photoanode applied to glycerol-driven PEC H 2 production • The heterostructured surface improves charge separation and limits recombination • Waste glycerol replaces OER, significantly reducing energy input for H 2 generation • Coupled glycerol oxidation and H 2 evolution achieve high Faradaic efficiencies • Flow-cell PEC operation enables scalable waste-to-chemicals and fuel production

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