
| Title | 3D imaging of Chemical Phase Transformations at the nanoscale with full field transmission X-Ray Microscopy |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Meirer, Florian, Jordi Cabana, Yijin Liu, Apurva Mehta, Joy C. Andrews, and Piero Pianetta |
| Secondary Title | Synchrotron Radadiation |
| Volume | 18 |
| Issue | 18 |
| Section | 773 |
| Pagination | 773-781 |
| Date Published | 05/2011 |
| Publication Language | eng |
| ISSN Number | 0909-0495 |
| Keywords | li-ion battery, synchrotron X-ray imaging, X-ray microscopy, XANES |
| Abstract | The ability to probe morphology and phase distribution in complex systems at multiple length scales unravels the interplay of nano- and micrometer-scale factors at the origin of macroscopic behavior. While different electron- and X-ray-based imaging techniques can be combined with spectroscopy at high resolutions, owing to experimental time limitations the resulting fields of view are too small to be representative of a composite sample. Here a new X-ray imaging set-up is proposed, combining full-field transmission X-ray microscopy (TXM) with X-ray absorption near-edge structure (XANES) spectroscopy to follow two-dimensional and three-dimensional morphological and chemical changes in large volumes at high resolution (tens of nanometers). TXM XANES imaging offers chemical speciation at the nanoscale in thick samples (>20 µm) with minimal preparation requirements. Further, its high throughput allows the analysis of large areas (up to millimeters) in minutes to a few hours. Proof of concept is provided using battery electrodes, although its versatility will lead to impact in a number of diverse research fields. |
| DOI | 10.1107/S0909049511019364 |
| Citation Key | 14412 |