Lithium doping on metal-organic frameworks for enhancing H2 Storage
Hydrogen storage in metal-organic frameworks (MOFs) is an important and hot topic in hydrogen economics. Unfortunately, no one virgin MOF material can meet the requirement of the U.S. Department of Energy (DOE) by now. Thus, many strategies for enhancing hydrogen uptake have been proposed. Recently,...
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Veröffentlicht in: | International journal of hydrogen energy 2012, Vol.37 (1), p.946-950 |
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container_title | International journal of hydrogen energy |
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creator | Xiang, Zhonghua Hu, Zan Yang, Wantai Cao, Dapeng |
description | Hydrogen storage in metal-organic frameworks (MOFs) is an important and hot topic in hydrogen economics. Unfortunately, no one virgin MOF material can meet the requirement of the U.S. Department of Energy (DOE) by now. Thus, many strategies for enhancing hydrogen uptake have been proposed. Recently, both experimental and theoretical researches indicate that H2 adsorption capacities of MOFs could be enhanced via doping alkali metal cations to the frameworks, particularly Li+, owing to the strong affinity of Li+ for H2 molecules. Here, we synthesize Li times Cu3(BTC)2, and Li times MIL-101 (Cr) by using lithium naphthalenide and further investigate the H2 sorption capacities of these materials. It is found that at 77 K and 1 bar, the H2 uptakes of Cu3(BTC)2 and MIL-101 (Cr) are increased by 45% and 43%, respectively, after doping lithium, which indicates that the lithium doping does provide an effective approach for enhancing H2 uptakes. |
doi_str_mv | 10.1016/j.ijhydene.2011.03.102 |
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Unfortunately, no one virgin MOF material can meet the requirement of the U.S. Department of Energy (DOE) by now. Thus, many strategies for enhancing hydrogen uptake have been proposed. Recently, both experimental and theoretical researches indicate that H2 adsorption capacities of MOFs could be enhanced via doping alkali metal cations to the frameworks, particularly Li+, owing to the strong affinity of Li+ for H2 molecules. Here, we synthesize Li times Cu3(BTC)2, and Li times MIL-101 (Cr) by using lithium naphthalenide and further investigate the H2 sorption capacities of these materials. It is found that at 77 K and 1 bar, the H2 uptakes of Cu3(BTC)2 and MIL-101 (Cr) are increased by 45% and 43%, respectively, after doping lithium, which indicates that the lithium doping does provide an effective approach for enhancing H2 uptakes.</description><identifier>ISSN: 0360-3199</identifier><identifier>EISSN: 1879-3487</identifier><identifier>DOI: 10.1016/j.ijhydene.2011.03.102</identifier><identifier>CODEN: IJHEDX</identifier><language>eng</language><publisher>Kidlington: Elsevier</publisher><subject>Affinity ; Alternative fuels. 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subjects | Affinity Alternative fuels. Production and utilization Applied sciences Chromium Doping Economics Energy Exact sciences and technology Fuels Hydrogen Hydrogen storage Lithium Metal-organic frameworks Strategy Uptakes |
title | Lithium doping on metal-organic frameworks for enhancing H2 Storage |
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