Density functional calculations of efficient H2 separation from impurity gases (H2, N2, H2O, CO, Cl2, and CH4) via bilayer g-C3N4 membrane
Guo Yuan1, Tang Chunmei1, †, Wang Xinbo1, Wang Cheng1, Fu Ling2, ‡
       

Electron density of bilayer g-C3N4 membrane with (a) H2, (b) CH4, (c) CO, (d) Cl2, (e) H2O, (f) N2, and (g) O2 at corresponding transition states, and that of the monolayer g-C3N4 membrane (g) H2, and (h) CH4. Isosurface is 0.2 a.u.