(345f) Oriented Growth of Mg2(dobpdc) on Honey-Comb Monolith for CO2 Capture

Metal organic framework (MOF) supported amine materials are a class of materials that have shown promising performance for CO2 capture. In the present talk, we will consider Mg₂(dobpdc) & Mn₂(dobpdc) MOFs functionalized with N-N’ dimethyl ethylene diamine (MMEN) for CO₂ capture. These adsorbents have previously shown exceptional equilibrium capacities for CO₂ capture. They will be discussed here in the context of their stability under humid conditions. Also, different approaches for practical applications of Mg₂(dobpdc) using honeycomb monolith supports will be presented. The uniformity of the MOF film on the monolith channels, as well as the mechanical and thermal stability of the film are some of the key parameters in the development of MOFs on monolith supports. Using our optimized approach, we demonstrate a highly effective, oriented and robust film for CO₂ capture. The adsorbent film shows higher capacities for CO₂ capture than most other MOF based adsorbent films on monoliths for simulated flue gas capture. Finally, a practical process using MOF films coated on monolith contactors, as well as the kinetics of CO₂ capture are briefly discussed.