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Keywords:

  • copper;
  • core–shell particles;
  • heterogeneous catalysis;
  • nanoparticles;
  • nitrogen oxides;
  • platinum
Thumbnail image of graphical abstract

Cores to celebrate: At 370 °C, Pt@Cu core–shell nanoparticles rapidly alloy but the reciprocal core–shell nanoparticles, Cu@Pt (see STEM images, left: Cu spectral map; middle: Pt spectral map; right: bright-field image), are kinetically stabilized and show high activity and selectivity for NO reduction.