Stability of Iridium Single Atoms on Fe₃O₄(001) in the mbar Pressure Range.

The difference of interactions with the liquid may be significant, 50 but the constant Ir 4f signal intensity in XPS suggests that Ir 1 may also survive in its well-defined adsorption site when exposed to liquid water. 3.6 Gas Exposure at Elevated Temperatures To complete this investigation, we performed gas-phase exposure experiments at temperatures up to 473 K.

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