Figure 8. An example of the Eyring equation, how ΔG/R changes the dependency of k to T(curves have been rescaled and repositioned to clarify the tendencies).

XPS and SEM-EDX Analyses

To determine the compounds formed during the adsorptions, XPS analyses were performed using, fresh Ag0-Aerogel, 350 ℃ degassed Ag0-Aerogel, CH3I fully loaded (9585 ppbv, powdered adsorbent) Ag0-Aerogel, I2 fully loaded (50 ppmv, powdered adsorbent) Ag0-Aerogel, 104 ppbv CH3I adsorbed (partially loaded) Ag0-Aerogel at 100, 150 and 200 ℃, and 1044 ppbv CH3I adsorbed (partially loaded) Ag0-Aerogel at the same temperatures. Since the first scan of the 104 ppbv/200 ℃ was questionable, a rescan was performed using the identical sample and settings (marked as SC1 and SC2 in the spectra).
The XPS analyses were performed using the Scienta Omicron ESCA-2SR at Cornell University. The operating pressure is 1×10-9Torr, and the monochromatic Al Kα x-rays (1486.6 eV) were generated at 300W (15 kV; 20mA).