1. Department of Mechanical Engineering; Temple Materials Institute; Temple University; Philadelphia PA 19122 USA
2. Synchrotron Radiation Research Section; Macromolecular Crystallography Laboratory; National Cancer Institute; Argonne National Laboratory; Argonne IL 60439 USA
3. Department of Chemistry; Temple University; Philadelphia PA 19122 USA
4. Department of Physics; Temple Materials Institute; Temple University; Philadelphia PA 19122 USA
5. School of Materials Science and Engineering; Nanjing University of Science Technology; Nanjing 210094 P. R. China
6. Energy Systems Division; Argonne National Laboratory; Argonne IL 60439 USA