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Hydrogen storage in single-walled carbon nanotubes at room temperature
C. Liu; Y. Y. Fan; M. Liu; H. T. Cong; H. M. Cheng; M. S. Dresselhaus
1999
Source PublicationScience
ISSN0036-8075
Volume286Issue:5442Pages:1127-1129
AbstractMasses of single-walled carbon nanotubes (SWNTs) with a large mean diameter of about 1.85 nanometers, synthesized by a semicontinuous hydrogen are discharge method, were employed for hydrogen adsorption experiments in their as-prepared and pretreated states. A hydrogen storage capacity of 4.2 weight percent, or a hydrogen to carbon atom ratio of: 0.52, was achieved reproducibly at room temperature under a modestly high pressure (about 10 megapascal) for a SWNT sample of about 500 milligram weight that was soaked in hydrochloric acid and then heat-treated in vacuum. Moreover, 78.3 percent of the adsorbed hydrogen (3.3 weight percent) could be released under ambient pressure at room temperature, while the release of the residual stored hydrogen (0.9 weight percent) required some heating of the sample. Because the SWNTs can be easily produced and show reproducible and modestly high hydrogen uptake at room temperature, they show promise as an effective hydrogen storage material.
description.departmentchinese acad sci, inst met res, shenyang 110015, peoples r china. mit, dept phys, cambridge, ma 02139 usa. mit, dept elect engn & comp sci, cambridge, ma 02139 usa.;dresselhaus, ms (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110015, peoples r china
KeywordDiameter Distribution
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WOS IDWOS:000083534200034
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Cited Times:1764[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/37419
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
C. Liu,Y. Y. Fan,M. Liu,et al. Hydrogen storage in single-walled carbon nanotubes at room temperature[J]. Science,1999,286(5442):1127-1129.
APA C. Liu,Y. Y. Fan,M. Liu,H. T. Cong,H. M. Cheng,&M. S. Dresselhaus.(1999).Hydrogen storage in single-walled carbon nanotubes at room temperature.Science,286(5442),1127-1129.
MLA C. Liu,et al."Hydrogen storage in single-walled carbon nanotubes at room temperature".Science 286.5442(1999):1127-1129.
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