Figure 4.
Co K-edge XANES spectra of (a) Co/SiO2 and (b) Co–Zr/SiO2 samples (1) as-prepared, (2) dehydrogenation reaction condition at 550 °C, and (3) cooled down to RT after catalysis.
Co K-edge XANES spectra of (a) Co/SiO2 and (b) Co–Zr/SiO2 samples (1) as-prepared, (2) dehydrogenation reaction condition at 550 °C, and (3) cooled down to RT after catalysis.