A New Approach to Determine Gas Diffusion Coefficients in Porous Solids by EIS: Application for NH₃ and CO₂ Adsorption on Zirconia and Zeolite Type 5A

Table 4

Diffusion parameters of proton mobility in Z5A-1 before and after adsorption carbon dioxide at 433 K.

	Γ^2[Å^2]	τ2 [s]	(cm^2/s)
Before CO2 ads.	1.065	6.55.10^−4	1.6 x10^−13
After CO2 ads.	1.043	1.90.10^−4	5.5 x10^−13