Reduction temperatures of Rh³⁺ and Cu²⁺ supported on TiO₂, γ-Al₂O₃ and MgO as determined based on in situ FT-EXAFS spectra.

	Rh K-edge	Cu K-edge
Rh/TiO2	200 °C
Cu/TiO2		280 °C
RhCu/TiO2	210 °C	220 °C
Rh/γ-Al2O3	60 °C
Cu/γ-Al2O3		310 °C
RhCu/γ-Al2O3	130 °C	300 °C
Rh/MgO	130 °C
Cu/MgO		310 °C
RhCu/MgO	130 °C	310 °C