1. SunCarbon AB, P. O. Box 726, SE-941 28 Piteå, Sweden
2. Department of Corrosion, RISE KIMAB, Isafjordsgatan 28A, SE-164 40 Kista, Sweden
3. Synchrotron Light Research Institute, 111 Moo 6, University Ave., Muang, Nakhon Ratchasima, 30000, Thailand
4. Department of Physics, University of Warwick, Coventry CV4 7AL, UK
5. Chemistry of Interfaces, Luleå University of Technology, SE-97 187 Luleå, Sweden
6. Department of Molecular Sciences, Swedish University of Agricultural Sciences, P. O. Box 7015, SE-750 07 Uppsala, Sweden