Fig. 6: In situ NEXAFS.
From: In situ observation of oscillatory redox dynamics of copper
In situ photoemission measurements of copper foil at 700 °C in a 25 Pa mixture of hydrogen and oxygen, with various oxygen partial pressures ranging from 0 to 10%. a Cu L3-edge NEXAFS spectra and b O K-edge NEXAFS spectra. c shows an in situ SEM image exhibiting different surface morphologies. The image is coloured to highlight the faceted Cu surface (yellow), smooth Cu surface (orange) and Cu2O islands (red).
