Enhancement of hydrogen adsorption by alkali-metal cation doping of metal-organic framework-5

被引：45

作者：

Chu, Chun-Lin ^{[1
]}

Chen, Jiann-Ruey ^{[2
]}

Lee, Tsung-Yu ^{[2
]}

机构：

[1] Natl Nano Device Labs, Hsinchu 30078, Taiwan

[2] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu, Taiwan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 08期

关键词：

Hydrogen storage; Metal-organic frameworks; Metal-organic frameworks-5 (MOF-5); Porous materials; STORAGE; DESIGN; MOF-5;

D O I：

10.1016/j.ijhydene.2012.01.046

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：

Over the past decade, metal-organic frameworks (MOF5) have been extensively studied as a novel approach to store hydrogen. The large surface area and volume of micropores that are intrinsic to MOFs make them ideal for gas adsorption. In addition, we chemically reduced MOF-5 by doping it with alkali metals (Li, Na, and K). We found that the H-2 uptake capacity of MOF-5 materials doped with Li, Na, and K exceeded that of a neutral framework by 24%, 68%, and 70%, respectively. Notably, at the same levels of doping, the Li+-doped framework exhibited the strongest H-2 binding, and the binding strength decreased sequentially in the order Li+ > Na+ > K+. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

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收藏

页码：6721 / 6726

页数：6

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