We are very pleased to invite you to attend the second MESA+ Operando HAXPES User Meeting on Thursday, February 19, 2026.
This year’s event will take the shape of a focused mini-conference dedicated to near-ambient-pressure XPS (NAP-XPS / APXPS) and operando HAXPES. The meeting brings together researchers from across Europe to share the latest experimental advances. We will showcase recent achievements since the installation of the MESA+ Operando HAXPES facility, and explore how the setup can support future research.
A highlight of the program will be keynote and invited lectures by leading APXPS and HAXPES experts, offering an up-to-date overview of emerging methods, technical innovations, and scientific frontiers in the field.
We will also host an interactive poster session, designed to be informal, inspiring, and accessible to all participants — especially students and new users.
This session is a great opportunity to bring your own poster, share your work, and receive feedback from peers and experts in a relaxed atmosphere. Whether your project is in progress, your data are preliminary, or you simply want to discuss a concept, you are warmly encouraged to take part!
The meeting will take place at the University of Twente and will be organised in a hybrid format, allowing both in-person and online participation.
Preliminary Program
09:30 Welcome and coffee (room LA2101); Lab tour (Lab tour only for external guests)
10:00 Introduction
10:15 Keynote - Andrey Shavorskiy (MAX IV Laboratory, Lund University)
11:00 Coffee/poster session / Lab tour
12:00 Science Cases – Presentations by MESA+ operando HAXPES users
- Genrikh Shterk, University of Twente, operando electrochemical XPS
- Abhinav Saxena, Forschungszentrum Jülich, NAP-XPS study on O-conducting membrane surfaces: Understanding the surface O-exchange mechanism
- Nynke Wijnant, University of Twente, XPS and HAXPES with battery materials
12:45 Access modes and collaboration
13:00 Networking Lunch (only for external guests)
14:00 NAP-XPS studies of the solid-liquid interface – presentations by external experts (room TL3138)
- Rik Mom (Leiden University)
- Verena Streibel (Technical University Munich)
- Arno Bergmann (Fritz Haber Institute Berlin)
- Francesc Valls-Mascaro (University of Innsbruck)
- Frank de Groot (Utrecht University)
16:15 Networking and Poster session
Poster session guidelines
- Keep it informal: Posters may highlight background information, experimental setups, first results, or open questions — no need for a polished final story.
- Encourage dialogue: Space will be available next to each poster for notes and feedback to stimulate discussion and collaboration.
- Learn from each other: The focus is on peer learning, idea sharing, and community building.
To attend the HAXPES user meeting and to submit your poster title, please:
