Silver nanocatalysts switch reaction sites between power generation and hydrogen production

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Add as preferred source A visual representation of how metal nanocatalysts promote oxygen exchange reactions at solid oxide cell electrodes. Credit: Energy & Environmental Science For the first time, researchers have discovered that the same silver (Ag) nanocatalyst operates at different reaction sites depending on whether a solid oxide cell is generating electricity or producing hydrogen. This finding introduces a new design principle for improving the performance of next-generation solid oxide cells.