Fig. 2: In situ characterization of Cu-SSZ-13 (7/1.3) and Cu-SSZ-13 (14/1.3). | Nature Catalysis

Fig. 2: In situ characterization of Cu-SSZ-13 (7/1.3) and Cu-SSZ-13 (14/1.3).

From: Tailoring the active sites in Cu-SSZ-13 as a catalyst for the selective catalytic reduction of NH3 to minimize HCHO and HCN emissions

Fig. 2

a,b, Experimental two-dimensional wavelet transform plots of EXAFS χ(k) spectra collected at the middle position of the catalyst bed at 150 °C after temperature-programmed oxidation up to 500 °C in 10% O2/He with a ramp rate of 5 °C min−1 for Cu-SSZ-13 (7/1.3) (a) and Cu-SSZ-13 (14/1.3) (b). c,d, XANES spectra collected during H2-TPR in 1,000 ppm H2/He with a ramp rate of 5 °C min−1 for Cu-SSZ-13 (7/1.3) (c) and Cu-SSZ-13 (14/1.3) (d). Inset, magnifications of the pre-edge regions between 8,970 and 8,980 eV.

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