Bernal Institute, Department of Chemical Sciences, University of Limerick , Limerick, Republic of Ireland.
Department of Chemistry, University of South Florida , 4202 East Fowler Avenue, Tampa, Florida 33620, United States.
ACS Appl Mater Interfaces. 2017 Oct 4;9(39):33395-33400. doi: 10.1021/acsami.6b15250. Epub 2017 Jan 27.
A new hybrid ultramicroporous material, [Ni(1,4-di(pyridine-2-yl)benzene)(CrO)] (DICRO-4-Ni-i), has been prepared and structurally characterized. Pure gas sorption isotherms and molecular modeling of sorbate-sorbent interactions imply strong selectivity for CH over CO (S). Dynamic gas breakthrough coupled with temperature-programmed desorption experiments were conducted on DICRO-4-Ni-i and two other porous materials reported to exhibit high S, TIFSIX-2-Cu-i and MIL-100(Fe), using a CH/CO/He (10:5:85) gas mixture. Whereas CO/CH coadsorption by MIL-100(Fe) mitigated the purity of trapped CH, negligible coadsorption and high S were observed for DICRO-4-Ni-i and TIFSIX-2-Cu-i.
一种新的混合超微孔材料，[Ni(1,4-二(吡啶-2-基)苯)(CrO)]（DICRO-4-Ni-i）已被制备和结构表征。纯气体吸附等温线和吸附剂-吸附质相互作用的分子模拟表明对 CH 相对于 CO（S）具有强选择性。在 DICRO-4-Ni-i 和另外两种报道具有高 S 的多孔材料 TIFSIX-2-Cu-i 和 MIL-100(Fe)上进行了动态气体突破实验，使用 CH/CO/He（10:5:85）气体混合物，并进行了程序升温脱附实验。虽然 MIL-100(Fe)对 CO/CH 的共吸附减轻了捕获 CH 的纯度，但 DICRO-4-Ni-i 和 TIFSIX-2-Cu-i 观察到几乎没有共吸附和高 S。
