Publication on "Insights Into Overall Photocatalytic Water Splitting Through Simultaneous In Situ H₂ and O₂ Measurements" describing a photoreactor setup allowing for simultaneous in situ detection of H2 and O2 in the liquid as well as gas phase.

We are pleased to share our publication on the simultaneous in situ detection of H₂ and O₂.

“Insights Into Overall Photocatalytic Water Splitting Through Simultaneous In Situ H₂ and O₂ Measurements”
Publication on "Insights Into Overall Photocatalytic Water Splitting Through Simultaneous In Situ H₂ and O₂ Measurements" describing a photoreactor setup allowing for simultaneous in situ detection of H2 and O2 in the liquid as well as gas phase.
Image: Kristína Rabatinová

Published:

Excited to share our latest publication: “Insights Into Overall Photocatalytic Water Splitting Through Simultaneous In Situ H₂ and O₂ Measurements”, now published in ChemSusChem.

In this work, we report a novel, sensor-based experimental method which allows for simultaneous in situ detection of H2 and O2 in both the liquid and gas phase. Our method integrates optical O₂ sensors and electrochemical H₂ sensors into a modular photoreactor platform, allowing real-time monitoring under realistic reaction conditions.

Using this approach, we investigated overall water splitting with Rh₂−yCryO₃/Al:SrTiO₃ and were able to study: irradiance dependence, thermal activation barriers, optimal cocatalyst loading and the H/D kinetic isotope effect. These results highlight how in situ H₂/O₂ detection can provide deeper mechanistic insight into photocatalytic water splitting compared to conventional GC-based analysis.

Great teamwork across the Water Splitting Group including Nadja Brezhneva, Ebrahim Abedini, Alexander Eith and Jacob Schneidewind in collaboration with Dirk Ziegenbalg and Daniel Kowalczyk.

📄 Read the paper here: http://doi.org/10.1002/cssc.202502721External link