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This study explored diethanolammonium chloride ([DEA]Cl) as a potential ionic liquid from low‐cost and commercial ones for gas separation. There are three kinds of functional sites in [DEA]Cl: acidic NH2+, hydrogen‐bond OH, and nucleophilic Cl−. The separation of NH3/N2/H2, SO2/CO2/N2, and H2S/CO2/CH4 was considered, because the three mixtures are extensively involved in many industrial processes...
Developing new and facile strategies for multiple‐site reversible chemical absorption of pollutant gases is of wide interests in chemical engineering research. Herein, a series of lithium (Li)‐triethylene glycol (TEG)–chelated ionic liquids (ILs) with crown‐ether‐like cation and different anions were designed. The Li‐TEG–chelated ILs were prepared in quantitative yields by simply mixing equimolar...
Efficient catalytic elimination of hydrogen sulfide (H2S) with high activity and durability in nature gas and blast‐furnace gas is very critical for both fundamental catalytic research and applied environmental chemistry. Herein, atomically dispersed Co atom catalysts with Co–N4 sites that can transform H2S into S with conversion rate of ≈100% are designed and prepared. The representative 4Co‐N/NC...