Abstract:Removing CO2 from crude syngas via physical adsorption is an effective method to yield eligible syngas. However, the bottleneck in trapping ppm‐level CO2 and improving CO purity at higher working temperatures are major challenges. Here we report a thermoresponsive metal–organic framework (1 a‐apz), assembled by rigid Mg2(dobdc) (1 a) and aminopyrazine (apz), which not only affords an ultra‐high CO2 capacity (145.0/197.6 cm3 g−1 (0.01/0.1 bar) at 298 K) but also produces ultra‐pure CO (purity ≥99.99 %) at a pra… Show more
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