Atomic-resolution spectroscopic imaging of ensembles of nanocatalyst particles across the life of a fuel cell.

  title={Atomic-resolution spectroscopic imaging of ensembles of nanocatalyst particles across the life of a fuel cell.},
  author={Huolin L. Xin and Julia A. Mundy and Zhongyi Liu and R. Cabezas and Robert Hovden and Lena F. Kourkoutis and Junliang Zhang and Nalini P. Subramanian and Rohit Makharia and Frederick T. Wagner and David A. Muller},
  journal={Nano letters},
  volume={12 1},
The thousand-fold increase in data-collection speed enabled by aberration-corrected optics allows us to overcome an electron microscopy paradox: how to obtain atomic-resolution chemical structure in individual nanoparticles yet record a statistically significant sample from an inhomogeneous population. This allowed us to map hundreds of Pt-Co nanoparticles to show atomic-scale elemental distributions across different stages of the catalyst aging in a proton-exchange-membrane fuel cell, and… Expand

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