fig3

Figure 3. CO₂, CH₄, C₂H₂, C₂H₄, C₂H₆, C₃H₆ and C₃H₈ adsorption isotherms of (A) Cu-AD-FA; (B) Cu-AD-AA; (C) Cu-AD-PA at 298 K and 1 bar. Q_st curves of (D) Cu-AD-FA; (E) Cu-AD-AA; (F) Cu-AD-PA.