Morphology and in situ spectroscopy characterizations of the SFIrM cathode at 800 °C. (IMAGE)

Science China Press

Morphology and in situ spectroscopy characterizations of the SFIrM cathode at 800 °C.

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(a) Dark field-STEM image of the SFIrM catalyst after (b) reconstruction at 1.2 V and (c) the corresponding diameter distribution of exsolved IrFe alloy NPs. (d-e) In situ XRD patterns at 29-33° and 41-47°. (f-g) In situ NAP-XPS spectra of Ir 4f and Fe 2p. (h-i) In situ Ir L3-edge XANES spectra and the corresponding Fourier transformed EXAFS spectra.

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