1. Department
of Chemistry, INSTM Reference Center and NIS Centre of
Excellence, Università di Torino, Via P. Giuria 7, I-10125 Torino, Italy
2. European
Synchrotron Radiation Facility, 6 Rue Jules Horowitz, F-38600 Grenoble, France
3. CrisDI
Interdepartmental Center for Crystallography, University of Turin, Italy
4. Chimet
SpA-Catalyst Division, Via di Pescaiola 74, I-52041 Viciomaggio, Arezzo, Italy
5. Consultant, Via Firenze 43, 20010 Canegrate, Milano, Italy
6. Dipartimento
di Fisica e Chimica, Università di Palermo, viale delle
Scienze, I-90128 Palermo, Italy
7. Netherlands
Organization for Scientific Research at ESRF, BP 220, F-38043 Grenoble Cedex 9, France
8. Istituto
per lo Studio dei Materiali Nanostrutturati del CNR, Via Ugo La Malfa 153, I-90146 Palermo, Italy