A Robust Metal-Organic Framework for Dynamic Light-Induced Swing Adsorption of Carbon Dioxide

被引：53

作者：

Li, Haiqing ^{[1
]}

Martinez, Marta Rubio ^{[1
]}

Perry, Zachary ^{[2
]}

Zhou, Hong-Cai ^{[2
]}

Falcaro, Paolo ^{[3
]}

Doblin, Christian ^{[1
]}

Lim, Seng ^{[1
]}

Hill, Anita J. ^{[1
]}

Halstead, Barry ^{[1
]}

Hill, Matthew R. ^{[1
,4
]}

机构：

[1] CSIRO, Clayton, Vic 3168, Australia

[2] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

[3] Graz Univ Technol, Inst Phys & Theoret Chem, Stremayrgrasse 9-Z2, A-8010 Graz, Austria

[4] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 32期

基金：

澳大利亚研究理事会;

关键词：

carbon dioxide; gas storage; gas release; metal-organic frameworks; photoswitching; CO2; CAPTURE; AZOBENZENE; PHOTOISOMERIZATION; PROSPECTS; POLYMERS; RELEASE; MOTION; ROUTE;

D O I：

10.1002/chem.201602671

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Adsorbents for CO2 capture need to demonstrate efficient release. Light-induced swing adsorption (LISA) is an attractive new method to release captured CO2 that utilizes solar energy rather than electricity. MOFs, which can be tailored for use in LISA owing to their chemical functionality, are often unstable in moist atmospheres, precluding their use. A MOF is used that can release large quantities of CO2 via LISA and is resistant to moisture across a large pH range. PCN-250 undergoes LISA, with UV flux regulating the CO2 desorption capacity. Furthermore, under UV light, the azo residues within PCN-250 have constrained, local, structural flexibility. This is dynamic, rapidly switching back to the native state. Reusability tests demonstrate a 7.3% and 4.9% loss in both adsorption and LISA capacity after exposure to water for five cycles. These minimal changes confirm the structural robustness of PCN-250 and its great potential for triggered release applications.

引用

页码：11176 / 11179

页数：4

共 29 条

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