Fig. 5: Dynamic breakthrough experiments.

Experimental column breakthrough curves of Al-PyDC for (a) C2H2/C2H4 (1/99), (b) C2H6/C2H4 (50/50) and (c) C2H2/C2H6/C2H4 (1/49.5/49.5) mixtures under ambient conditions. d Experimental column breakthrough curves of Al-PyDC for C2H2/C2H6/C2H4 (1/9/90) mixtures under ambient conditions. e Comparison of pure C2H4 productivity for Al-PyDC (the averaged value was obtained from five independent tests, and the error bar is the standard deviation) with the top-performing materials reported. f Twenty separation cycles of breakthrough experiments on Al-PyDC for C2H2/C2H6/C2H4 (1/9/90) mixture.