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Peer-Reviewed Study Advances Earth-Abundant Semiconductors for Solar CO₂-to-Fuel Conversion

Published in The Journal of Physical Chemistry C, the work details catalyst‑aided improvements from chalcogenide absorbers in lab‑scale photoelectrochemical systems.

Overview

  • Led by Vrije Universiteit Brussel with collaborators at Stanford, Antwerp and Hasselt, the team examined emerging chalcogenide absorbers for converting sunlight and CO₂ into chemical fuels.
  • They mapped electronic band structure, charge transport and electrode interactions, identifying pathways to higher efficiency and improved stability.
  • Adding tailored electrocatalysts at reactive interfaces further increased performance and extended operational lifetimes in laboratory tests.
  • The approach prioritizes inexpensive, non‑toxic, earth‑abundant compounds to reduce reliance on scarce or hazardous materials in future devices.
  • The research is part of the SYNCAT program with funding from FWO and the Flemish Moonshot Initiative via VLAIO, with scale‑up and system integration still to come.