1. Department of Chemical Engineering University College London London WC1E 7JE UK
2. Particle Technology Laboratory Institute of Process Engineering Department of Mechanical and Process Engineering ETH Zürich 8092 Zürich Switzerland
3. School of Electrical Engineering and Automation Wuhan University Wuhan China
4. Diamond Light Source Ltd Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
5. Deutsches Elektronen Synchrotron DESY 22607 Hamburg Germany
6. Department of Molecular Engineering Graduate School of Engineering Kyoto University Kyotodaigaku Katsura Nishikyo-ku Kyoto 6158510 Japan
7. Department of Materials Science and Engineering National University of Singapore Singapore 117575 Singapore
8. HarwellXPS—The EPSRC National Facility for Photoelectron Spectroscopy Research Complex at Harwell (RCaH) Didcot OX11 0FA UK
9. Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Germany