1. 15% H2 or 1% CO in N2 balance at 500 – 900 ℃
Fig. S1. The scheme of reduction treatment, pretreatment (oxidative), and NO adsorption/desorption process.
2 hr
900 ℃ NO on
30min
30min
500 ℃
NOx desorption
Preconditioning
Reduction NO
adsorption
(100s)
120 ℃
(10℃/min)
(10℃/min)
(10℃/min)
Time RT
15% H2 or 1% CO in N2 balance at 500 – 900 ℃
9.5% O2, 5% H2O, 5% CO2 in N2 balance
9.5% O2, 5% H2O, 5% CO2 , 100 ppm NO in N2 balance

2. Fig. S2. Magnified XRD patterns from 32 ° to 41 ° of Pd/SSZ-13 catalyst with various reduction temperature.

3. Fig. S3. Fourier transforms of k3-weighted Pd K edge EXAFS for Pd foil and PdO.

4. Fig. S4. XRD patterns of HTA Pd/SSZ-13, H2 900 H-SSZ-13, and H2 900 Pd/SSZ-13.