Table 4.

Swelling of HGO materials in CH3CN at T = 298 K.

Sample	Sorption of CH3CN mg/mg GO	Inter- Plane Distance, d001, A
HGO, powder	0.35± 0.03	12.0 a
HGO, membrane	0.16± 0.03	8.8 a
HGO, powder [15]	0.34± 0.01
HGO, powder [22]		14.0 b
HGO, membrane [22]		9.0 b

^a Measured after the IM experiment, 30 days; ^b Measured in direct contact with liquid CH₃ CN, ≈30 min [22].