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Highly Selective Separation of C2H2 from CO2 by a New Dichromate-Based Hybrid Ultramicroporous Material
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-01-27 00:00:00 , DOI: 10.1021/acsami.6b15250
Hayley S. Scott 1 , Mohana Shivanna 1 , Alankriti Bajpai 1 , David G. Madden 1 , Kai-Jie Chen 1 , Tony Pham 2 , Katherine A. Forrest 2 , Adam Hogan 2 , Brian Space 2 , John J. Perry IV 1 , Michael J. Zaworotko 1
Affiliation  

A new hybrid ultramicroporous material, [Ni(1,4-di(pyridine-2-yl)benzene)2(Cr2O7)]n (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 C2H2 over CO2 (SAC). 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 SAC, TIFSIX-2-Cu-i and MIL-100(Fe), using a C2H2/CO2/He (10:5:85) gas mixture. Whereas CO2/C2H2 coadsorption by MIL-100(Fe) mitigated the purity of trapped C2H2, negligible coadsorption and high SAC were observed for DICRO-4-Ni-i and TIFSIX-2-Cu-i.

中文翻译:

一种基于重铬酸盐的新型杂化超微孔材料对CO 2和C 2 H 2的选择性分离

制备了一种新的杂化超微孔材料,[Ni(1,4-二(吡啶-2-基)苯)2(Cr 2 O 7)] n(DICRO-4-Ni-i),并对其结构进行了表征。纯气体吸附等温线和吸附物-吸附剂相互作用的分子模型表明,C 2 H 2相对于CO 2S AC)具有很强的选择性。在DICRO-4-Ni-i和其他两种据报道具有高S AC的多孔材料,TIFSIX-2-Cu-i和MIL-100(Fe)上使用C进行了动态气体突破和程序升温脱附实验2 H 2 / CO 2/ He(10:5:85)混合气体。尽管MIL-100(Fe)对CO 2 / C 2 H 2的共吸附作用降低了捕集的C 2 H 2的纯度,但DICRO-4-Ni-i和TIFSIX-2-Cu-i的共吸附作用和高S AC均可忽略不计。
更新日期:2017-01-27
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