Behavioural Change according to the Si/Al Ratio of Successive Na-Mordenites Observed through Their Dielectric Relaxation during Water Vapour Adsorption Process

Table 1

Number of water molecules () adsorbed per cation, in a set of Na-mordenite samples characterized by the Si/Al ratio = 5.5, at each treatment temperature (TT), and the corresponding values of .

TT (K)	per cation	in eV
373	1.425	0.64
393	1.0515	0.68
403	0.917	0.69
413	0.808	0.71
433	0.65	0.74
443	0.579	0.75
453	0.518	0.75
463	0.439	0.75
473	0.361	0.76