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Keywords:

  • catalysis;
  • composite materials;
  • electrodes;
  • electronic structures/processes/mechanisms;
  • fuel cells
Thumbnail image of graphical abstract

Solid oxide fuel cells (SOFCs) are recognized as a viable technology to convert chemical energy directly into electricity, with higher efficiencies than conventional thermal engines. On page 762, Spyridon Zafeiratos and co-workers describe the fundamental characteristics of an operating nickel gadolinium-doped ceria (Ni/GDC) solid oxide fuel cell (SOFC) anode, and establish the optimal surface state for maximum cell currents.