
Taylor leaves the Kühnel Lab after completing her Master’s degree in Hohenheim. She will move to Ohio State University to undertake a PhD in Environmental and Soil Science with Nick Basta. We will miss you!


Taylor leaves the Kühnel Lab after completing her Master’s degree in Hohenheim. She will move to Ohio State University to undertake a PhD in Environmental and Soil Science with Nick Basta. We will miss you!

Thomas Albani returns to Italy after three months in the Länd. Núria Pascual joins the Kühnel lab as a Joves i Ciència summer intern from Barcelona to work on photoreforming. Welcome to the group!
Congratulations to Dr. Léonard Olivotto on passing his PhD viva in Grenoble – well done! Many thanks to the examiners Julea Butt (East Anglia), Nicolas Plumeré (TU Munich), Murielle Chavarot-Kerlidou (CEA Grenoble), Nicolas Le Poul (Brest), Jérôme Chauvin (UGA) and Ian Mabbett (Swansea) for giving him proper scrutiny.




Congrats to Léonard Olivotto on submitting his PhD thesis to both Grenoble and Swansea University. Big milestone! Time to relax now before the viva in July.

From left to right: Moritz Kühnel, Hajo Kries, Michael Stier, Fabrizio Casilli, Ewan McQueen, Johannes Kästner
We kicked off our ENERGASE project with a workshop at the University of Stuttgart’s Institut of Technical Biochemistry with our collaborators from the Kries and Kästner groups. In this project, we aim to jointly develop a de novo enzyme to produce green hydrogen through a non-natural mechanism. To do that, we are combining theory, synthetic biologyand nanotechnology. This blue-sky project is funded by the Carl Zeiss Stiftung and their CZS Wildcard programme for high-risk-high-reward ideas.
Thomas Albani joins the Kühnel Lab as from University of Milano-Bicocca as an intern funded by the an Eramsus+ mobility programme. Thomas will work on flow photochemistry for his Chemistry Master’s project.
Antonia Lämmle-Berkhan joins us as research intern as part of her Environmental Protection & Agricultural Food Production Master’s degree at Uni Hohenheim. She will work on biohybrid waste upgrading in collaboration with Christine Cavazza and Julien Pérard at CEA Grenoble.
The Kühnel Lab is looking for a German-speaking PhD candidate (TV-L E13, 50%) to join us from October 2026. We value team spirit, open communication and ambition. The successful candidate will work experimentally in the field of (semi)artificial photosynthesis e.g. on the synthesis of catalysts, characterisation of photo/electrochemical properties, or reaction engineering. The role includes organisation and teaching duties in the Department of Inorganic Chemistry, e.g. lab demonstrating and course supervision. Applicants must hold a masters in chemistry or equivalent degree in a related discipline and must be fluent German speakers. The ideal candidate can demonstrate enthusiasm for research, motivation for acquiring new synthetic/analytical techniques and excellent people skills. Applications must be made in German via the online portal by 31/5/2026 (link).
Ewan McQueen joins the Kühnel Lab as a postdoc funded by the Carl-Zeiss-Foundation. Ewan obtained his PhD in Seb Sprick’s lab at the University of Strathclyde, where he developed organc photocatalysts for hydrogen production and CO2 reduction. Ewan will work on the ENERGASE project, in which we are developing a metal-free enzyme for hydrogen production in collaboration with the groups of Hajo Kries and Johannes Kästner at University of Stuttgart.
To wrap up the year, the Kühnel Lab came together for a Christmas potluck dinner. The group did an amazing job decorating our lovely grey seminar room with a colourful mix of of chemistry and Xmas themes. The weather was a little too sunny for Xmas, but the decorations and the food more than made up for it.

We were also really happy to be joined by some of our group alumni for a catch-up over a glass of mulled wine. Thanks to everyone for a great evening and a hugely successful year for the group!


Astha’s article about a waste-derived photocatalyst for hydrogen evolution was published in ACS Sustainable Resource Management (read her paper here) and is featuerd on the supplementary cover. This paper demonstrates how a nanocomposite from waste coffee grounds (an abundant resource in the Kühnel Lab) and an anthraquinone-base covalent organic framework acts as an active catalyst for solar-driven hydrogen evolution from pure water. This COFfee catalyst forms a Z-scheme type heterojunction with improved charge separation and much improved performance compared to the pure COF that requires 75% less photocatalyst to produce the same amount of hydrogen.