fig6

Figure 6. Py-IR spectrum at (A) 150 oC and (B) 450 oC; (C) NH3-TPD of different catalysts. Py-IR: FT-IR spectra of adsorbed pyridine; TPD: temperature programmed desorption.
Figure 6. Py-IR spectrum at (A) 150 oC and (B) 450 oC; (C) NH3-TPD of different catalysts. Py-IR: FT-IR spectra of adsorbed pyridine; TPD: temperature programmed desorption.
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