New Class of Type III Porous Liquids: A Promising Platform for Rational Adjustment of Gas Sorption Behavior

Weida Shan; Pasquale F. Fulvio; Liyun Kong; Jennifer A. Schott; Chi Linh Do-Thanh; Tao Tian; Xunxiang Hu; Shannon M. Mahurin; Huabin Xing; Sheng Dai

doi:10.1021/acsami.7b15873

New Class of Type III Porous Liquids: A Promising Platform for Rational Adjustment of Gas Sorption Behavior

Weida Shan, Pasquale F. Fulvio, Liyun Kong, Jennifer A. Schott, Chi Linh Do-Thanh, Tao Tian, Xunxiang Hu, Shannon M. Mahurin, Huabin Xing, Sheng Dai

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

159 Scopus citations

Abstract

Porous materials have already manifested their unique properties in a number of fields. Generally, all porous materials are in a solid state other than liquid, in which molecules are closely packed without porosity. "Porous" and "liquid" seem like antonyms. Herein, we report a new class of Type 3 porous liquids based on rational coupling of microporous framework nanoparticles as porous hosts with a bulky ionic liquid as the fluid media. Positron annihilation lifetime spectroscopy (PALS) and CO₂ adsorption measurements confirm the successful engineering of permanent porosity into these liquids. Compared to common porous solid materials, as-synthesized porous liquids exhibited pronounced hysteresis loops in the CO₂ sorption isotherms even at ambient conditions (298 K, 1 bar). The unique features of these novel porous liquids could bring new opportunities in many fields including gas separation and storage, air separation and regeneration, gas transport, and permanent gas storage at ambient conditions.

Original language	English
Pages (from-to)	32-36
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	1
DOIs	https://doi.org/10.1021/acsami.7b15873
State	Published - Jan 10 2018

Funding

This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division. This manuscript has been authored by UT-Battelle, LLC under Contract DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan.

Keywords

gas sorption
hysteretic desorption
ionic liquid
porous frameworks
porous liquids

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10.1021/acsami.7b15873

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abstract = "Porous materials have already manifested their unique properties in a number of fields. Generally, all porous materials are in a solid state other than liquid, in which molecules are closely packed without porosity. {"}Porous{"} and {"}liquid{"} seem like antonyms. Herein, we report a new class of Type 3 porous liquids based on rational coupling of microporous framework nanoparticles as porous hosts with a bulky ionic liquid as the fluid media. Positron annihilation lifetime spectroscopy (PALS) and CO2 adsorption measurements confirm the successful engineering of permanent porosity into these liquids. Compared to common porous solid materials, as-synthesized porous liquids exhibited pronounced hysteresis loops in the CO2 sorption isotherms even at ambient conditions (298 K, 1 bar). The unique features of these novel porous liquids could bring new opportunities in many fields including gas separation and storage, air separation and regeneration, gas transport, and permanent gas storage at ambient conditions.",

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AU - Shan, Weida

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AU - Kong, Liyun

AU - Schott, Jennifer A.

AU - Do-Thanh, Chi Linh

AU - Tian, Tao

AU - Hu, Xunxiang

AU - Mahurin, Shannon M.

AU - Xing, Huabin

AU - Dai, Sheng

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AB - Porous materials have already manifested their unique properties in a number of fields. Generally, all porous materials are in a solid state other than liquid, in which molecules are closely packed without porosity. "Porous" and "liquid" seem like antonyms. Herein, we report a new class of Type 3 porous liquids based on rational coupling of microporous framework nanoparticles as porous hosts with a bulky ionic liquid as the fluid media. Positron annihilation lifetime spectroscopy (PALS) and CO2 adsorption measurements confirm the successful engineering of permanent porosity into these liquids. Compared to common porous solid materials, as-synthesized porous liquids exhibited pronounced hysteresis loops in the CO2 sorption isotherms even at ambient conditions (298 K, 1 bar). The unique features of these novel porous liquids could bring new opportunities in many fields including gas separation and storage, air separation and regeneration, gas transport, and permanent gas storage at ambient conditions.

KW - gas sorption

KW - hysteretic desorption

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KW - porous liquids

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New Class of Type III Porous Liquids: A Promising Platform for Rational Adjustment of Gas Sorption Behavior

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