Figure 7
Differential PDF of Cu-SPR-212 samples annealed at 1000°C. The vertical lines mark the Si—O peak (1.6 Å) eliminated by subtracting the SiOC matrix scattering, the typical M—M (M = Cu, Si) distance (2.6 Å) in Cu-rich metals and the typical M—M distance (3.1 Å) in Cu/Si oxides. |