本文選題：離子液體　切入點(diǎn)：二氧化碳　出處：《高等學(xué)校化學(xué)學(xué)報(bào)》2017年09期

【摘要】：采用兩步法合成了新型功能化離子液體1-甲氧基乙基-3-甲基咪唑甘氨酸([C_3O_1mim][Gly]),并研究了其對CO_2的吸收性能.利用核磁共振、紅外光譜及熱重分析等手段進(jìn)行表征,驗(yàn)證了該離子液體的結(jié)構(gòu),且發(fā)現(xiàn)其具有較高的熱穩(wěn)定性.對比單乙醇胺(MEA),考察了[C_3O_1mim][Gly]在不同溫度下對CO_2的捕集能力,結(jié)果表明,[C_3O_1mim][Gly]在40℃下的吸收容量可達(dá)1.26 mol CO_2/mol IL,遠(yuǎn)高于MEA,這表明[C_3O_1mim][Gly]對CO_2具有良好的吸收能力,吸收容量隨著溫度升高而降低.該離子液體同時(shí)具有良好的循環(huán)穩(wěn)定性,進(jìn)行5次吸收解吸操作后仍可保持較高的CO_2吸收量.對該離子液體吸收CO_2進(jìn)行了動力學(xué)研究,結(jié)果表明,Pseudo-second-order模型能夠較好地描述該吸收過程.
[Abstract]:A new functionalized ionic liquid, [C_3O_1mim] [Gly], was synthesized by two-step method and its absorption property to CO_2 was studied.The structure of the ionic liquid was confirmed by NMR, FTIR and thermogravimetric analysis, and its thermal stability was found to be high.瀵規(guī)瘮鍗曚箼閱囪兒(MEA),鑰冨療浜哰C_3O_1mim][Gly]鍦ㄤ笉鍚屾俯搴︿笅瀵笴O_2鐨勬崟闆嗚兘鍔，

本文編號：1703854