Enhanced Stability of Cu-BTC MOF via Perfluorohexane Plasma-Enhanced Chemical Vapor Deposition

被引：243

作者：

Decoste, Jared B. ^{[1
]}

Peterson, Gregory W. ^{[1
]}

Smith, Martin W. ^{[2
]}

Stone, Corinne A. ^{[2
]}

Willis, Colin R. ^{[2
]}

机构：

[1] Edgewood Chem Biol Ctr, Aberdeen Proving Ground, MD 21010 USA

[2] Def Sci & Technol Lab, Salisbury SP4 0JQ, Wilts, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 03期

关键词：

METAL-ORGANIC FRAMEWORKS; MOLECULAR SIMULATION; GAS-ADSORPTION; FORCE-FIELD; WATER; SEPARATION; CO2;

D O I：

10.1021/ja211182m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metal organic frameworks (MOFs) are a leading class of porous materials for a wide variety of applications, but many of them have been shown to be unstable toward water. Cu-BTC (1,3,5 benzenetricarboxylic acid, BTC) was treated with a plasma-enhanced chemical vapor deposition (PECVD) of perfluorohexane creating a hydrophobic form of Cu-BTC. It was found that the treated Cu-BTC could withstand high humidity and even submersion in water much better than unperturbed Cu-BTC. Through Monte Carlo simulations it was found that perfluorohexane sites itself in such a way within Cu-BTC as to prevent the formation of water clusters, hence preventing the decomposition of Cu-BTC by water. This PECVD of perfluorohexane could be exploited to widen the scope of practical applications of Cu-BTC and other MOFs.

引用

页码：1486 / 1489

页数：4

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