1. Department of Chemistry, INSTM and NIS Centre, University of Turin, via Quarello 15, Turin I-10135, Italy
2. Centre for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, Sem Saelands vei 26, Oslo N-0315, Norway
3. The Smart Materials Research Center, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090, Russia
4. Department of Drug Science and Technology, NIS Centre and INSTM, University of Turin, Via Pietro Giuria 9, Turin I-10125, Italy
5. Chimet SpA - Catalyst Division, Via di Pescaiola 74, Viciomaggio Arezzo I-52041, Italy
6. Department of Physics and CrisDi Interdepartmental Centre, University of Turin, via Pietro Giuria 1, Turin 10125, Italy
7. Department of Chemistry, KU Leuven, Celestijnenlaan 200F box 2404, Leuven 3001, Belgium
8. Netherlands Organization for Scientific Research at ESRF, BP 220, Grenoble F-38043 Cedex 9, France