Equimolar CO<sub>2</sub>Capture by N-Substituted Amino Acid Salts and Subsequent Conversion
作者:An-Hua Liu、Ran Ma、Chan Song、Zhen-Zhen Yang、Ao Yu、Yu Cai、Liang-Nian He、Ya-Nan Zhao、Bing Yu、Qing-Wen Song
DOI:10.1002/anie.201205362
日期:2012.11.5
Steric bulk controls CO2 absorption: N‐substituted amino acid salts in poly(ethylene glycol) reversibly absorb CO2 in nearly 1:1 stoichiometry. Carbamic acid is thought to be the absorbed form of CO2; this was supported by NMR and in situ IR spectroscopy, and DFT calculations. The captured CO2 could be converted directly into oxazolidinones and thus CO2 desorption could be sidestepped.
立体物质控制着CO 2的 吸收:聚(乙二醇)中的N-取代的氨基酸盐以近1:1的化学计量可逆地吸收CO 2。氨基甲酸被认为是CO 2的吸收形式; NMR和原位红外光谱以及DFT计算支持了这一点。捕获的CO 2可以直接转化为恶唑烷酮,因此可以避开CO 2的解吸。