Abstract:In this study, we used tetraethylammonium chloride (TEAC), diethanolamine (DEA), and N-methyldiethanolamine (MDEA) to prepare ternary DES and binary DES to absorb CO2. We found that their formation was due to the hydrogen bond interaction between hydrogen bond acceptor and hydrogen bond donor (HBD). Surprisingly, TEAC/MDEA/DEA can react with CO2, but TEAC/MDEA cannot react with CO2. Unexpectedly, after adding DEA to TEAC/MDEA, the ternary TEAC/MDEA/DEA DES can react with CO2. Nuclear magnetic resonance spectro… Show more
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