共 48 条
Mechanical gas capture and release in a network solid via multiple single-crystalline transformations
被引:166
作者:
Chandler, Brett D.
[1
]
Enright, Gary D.
[2
]
Udachin, Konstantin A.
[2
]
Pawsey, Shane
[2
]
Ripmeester, John A.
[2
]
Cramb, David T.
[1
]
Shimizu, George K. H.
[1
]
机构:
[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada
[2] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada
基金:
加拿大自然科学与工程研究理事会;
关键词:
D O I:
10.1038/nmat2101
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Metal-organic frameworks have demonstrated functionality stemming from both robustness and pliancy and as such, offer promise for a broad range of new materials. The flexible aspect of some of these solids is intriguing for so-called 'smart' materials in that they could structurally respond to an external stimulus. Herein, we present an open-channel metal-organic framework that, on dehydration, shifts structure to form closed pores in the solid. This occurs through multiple single-crystal-to-single-crystal transformations such that snapshots of the mechanism of solid-state conversion can be obtained. Notably, the gas composing the atmosphere during dehydration becomes trapped in the closed pores. On rehydration, the pores open to release the trapped gas. Thus, this new material represents a thermally robust and porous material that is also capable of dynamically capturing and releasing gas in a controlled manner.
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页码:229 / 235
页数:7
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