Highly selective separation of C2H2 from CO2 by a new dichromate-based hybrid ultramicroporous material

Hayley S. Scott, Mohana Shivanna, Alankriti Bajpai, David G. Madden, Kai Jie Chen, Tony Pham, Katherine A. Forrest, Adam Hogan, Brian Space, John J.Perry Iv, Michael J. Zaworotko

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119 引用 (Scopus)

摘要

A new hybrid ultramicroporous material, [Ni- (1,4-di(pyridine-2-yl)benzene)2(Cr2O77)]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.

源语言英语
页(从-至)33395-33400
页数6
期刊ACS Applied Materials and Interfaces
9
39
DOI
出版状态已出版 - 4 10月 2017
已对外发布

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