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

doi:10.1021/acsami.6b15250

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

Department of Chemical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

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 (S_AC). 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.

Original language	English
Pages (from-to)	33395-33400
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	39
DOIs	https://doi.org/10.1021/acsami.6b15250
Publication status	Published - 4 Oct 2017

Keywords

Acetylene
Adsorption
Carbon dioxide
Separation
Ultramicroporous materials

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsami.6b15250

Cite this

@article{615ad2ea65fe4c8dbe59838ab287ba1f,

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

abstract = "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.",

keywords = "Acetylene, Adsorption, Carbon dioxide, Separation, Ultramicroporous materials",

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

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = oct,

day = "4",

doi = "10.1021/acsami.6b15250",

language = "English",

volume = "9",

pages = "33395--33400",

journal = "ACS Applied Materials and Interfaces",

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T1 - Highly selective separation of C2H2 from CO2 by a new dichromate-based hybrid ultramicroporous material

AU - Scott, Hayley S.

AU - Shivanna, Mohana

AU - Bajpai, Alankriti

AU - Madden, David G.

AU - Chen, Kai Jie

AU - Pham, Tony

AU - Forrest, Katherine A.

AU - Hogan, Adam

AU - Space, Brian

AU - Iv, John J.Perry

AU - Zaworotko, Michael J.

PY - 2017/10/4

Y1 - 2017/10/4

N2 - 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.

AB - 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.

KW - Acetylene

KW - Adsorption

KW - Carbon dioxide

KW - Separation

KW - Ultramicroporous materials

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