1. Energy Conversion Group, Lawrence Berkeley National Laboratory, Berkeley, California 947203, United States
2. Section of Chemistry for Technology, Department of Industrial Engineering, University of Padova, Via F. Marzolo 9, I-35131 Padova, Italy
3. INSTM, Via Gradenigo 6/A, I-35131 Padova, Italy
4. Centre for Mechanics of Biological Materials (CMBM), University of Padova, Via F. Marzolo 9, I-35131 Padova, Italy
5. Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
6. Energy Components Program, 3M, 3M Center, St. Paul, Minnesota 55144, United States
7. Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado 80401, United States
8. X-Ray Sciences Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
9. Department of Materials Science and Engineering and Chemical Engineering, University Carlos III of Madrid, 28911 Leganes, Madrid, Spain