调控高稳定CAU-10-X(X=H、NO_(2)、CH_(3))孔化学环境以实现N_(2)O高效捕获  

Control of High Stability CAU-10-X(X=H,NO_(2),CH_(3))Pore Chemical Environment for Efficient Capture of N_(2)O

作　　者：张迎迎 张飞飞 马蕾 王丽 杨江峰 ZHANG Ying-Ying;ZHANG Fei-Fei;MA Lei;WANG Li;YANG Jiang-Feng(College of Chemical Engineering and Technology,Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学化学工程与技术学院气体能源高效清洁利用山西省重点实验室,太原030024

出　　处：《无机化学学报》2022年第11期2213-2221,共9页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金联合基金项目(No.U20B6004,22090062)资助。

摘　　要：合成3种具有不同取代基(—X)的金属有机骨架(MOFs)材料CAU-10-X(X=H、NO_(2)、CH_(3)),研究了从N_(2)O/N_(2)混合物中吸附捕获N_(2)O的性能。综合单组分吸附等温线、吸附热和IAST(理想溶液吸附理论)选择性的实验结果,发现CAU-10-NO_(2)在低压区的N_(2)O吸附量明显高于母体CAU-10-H,其可以有效地从N_(2)O/N_(2)混合物中捕集N_(2)O,而CAU-10-CH_(3)则表现出相反的效果。N_(2)O/N_(2)混合物的穿透模拟进一步证明CAU-10-NO_(2)对微量N_(2)O具有较好的捕获能力,循环实验显示该材料具有良好的稳定性。Three metal-organic frameworks(MOFs)materials,CAU-10-X(X=H,NO_(2),CH_(3)),with different substituents(—X)were synthesized and the adsorption and capture properties of N_(2)O from N_(2)O/N_(2)mixtures were studied.Considering the experimental results of single-component adsorption isotherm,adsorption heat,and IAST(ideal adsorbed solution theory)selectivity,we found that the adsorption capacity of CAU-10-NO_(2)was significantly higher than that of the parent CAU-10-H in the low-pressure region,and it could effectively capture N_(2)O from the N_(2)O/N_(2)mixture,while CAU-10-CH_(3)showed the opposite effect.The penetration simulation of N_(2)O/N_(2)mixture further proved that CAU-10-NO_(2)had a good ability to capture trace N_(2)O,and the cycle experiment showed that CAU-10-NO_(2)had good stability.

关 键 词：氧化亚氮 氮气 CAU-10 取代基 吸附分离 

分 类 号：TQ028.1[化学工程]