%0 Journal Article
%K li-ion battery
%K synchrotron X-ray imaging
%K X-ray microscopy
%K XANES
%A Florian Meirer
%A Jordi Cabana
%A Yijin Liu
%A Apurva Mehta
%A Joy C Andrews
%A Piero Pianetta
%B Synchrotron Radadiation
%D 2011
%G eng
%N 18
%P 773-781
%R 10.1107/S0909049511019364
%T 3D imaging of Chemical Phase Transformations at the nanoscale with full field transmission X-Ray Microscopy
%V 18
%8 05/2011
%X <p>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 (&gt;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.</p>