Table 1 The ideal selectivity and separation factors of small gas molecules and light hydrocarbons over the ED-GO@PSSHF membrane (ΔP = 2 bar, room temperature)

From: Strict molecular sieving over electrodeposited 2D-interspacing-narrowed graphene oxide membranes

Ideal Selectivity (row/col.)

H2

CO2

N2

CH4

C2H4

C2H6

C3H6

 

(0.29 nm)

(0.33 nm)

(0.37 nm)

(0.38 nm)

(0.39 nm)

(0.39 nm)

(0.43 nm)

CO2

4.1

      

(0.33 nm)a

       

N2

2.9

0.7

     

(0.37 nm)

       

CH4

2.3

0.6

0.8

    

(0.38 nm)

       

C2H4

6.1

1.5

2.1

2.6

   

(0.39 nm)

       

C2H6

10.1

2.5

3.6

4.3

1.7

  

(0.39 nm)

       

C3H6

1949.2 (361.5)b

478.9

683.8

836.0 (249.7)b

319.1 (119.6)b

192.3 (84.6)b

 

(0.43 nm)

       

C3H8

3366.8 (378.7)b

827.2

1181.1

1443.9 (234.7)b

551.1 (121.8)b

332.2 (121.2)b

1.7

(0.43 nm)

       
  1. aThe kinetic diameter of the responding molecules
  2. bThe separation factors obtained from the binary gas mixture permeation
Back to article page