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Hydrogen storage in single-walled carbon nanotubes at room temperature

畅 刘;Y. Y. Fan;M. Liu;H. T. Cong;会明 成;M. S. Dresselhaus

CAS - Institute of Metal Research;Massachusetts Institute of Technology

发表时间:1999-11-5

期 刊:Science

语 言:English

U R L: http://www.scopus.com/inward/record.url?scp=0033527691&partnerID=8YFLogxK

摘要

Masses of single-walled carbon nanotubes (SWNTs) with a large mean diameter of about 1.85 nanometers, synthesized by a semicontinuous hydrogen arc 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.

文献指纹

物理与天文学

carbon nanotubes

hydrogen

room temperature

hydrochloric acid

arc discharges

adsorption

carbon

heat

vacuum

heating

atoms

被引量

期刊度量

Scopus度量

年份 CiteScore SJR SNIP
1996
1997
1998
1999 16.615 6.948
2000 13.319 7.003
2001 10.987 6.898
2002 10.814 7.242
2003 11.428 7.439
2004 11.589 7.237
2005 11.09 6.525
2006 10.542 6.097
2007 10.072 5.991
2008 11.277 6.041
2009 11.897 7.025
2010 13.481 7.745
2011 44.7 14.238 8.191
2012 46.3 13.318 7.992
2013 46.9 12.41 7.719
2014 46 12.052 8.045
2015 46.6 12.872 7.549
2016 49.5 13.745 7.652
2017 49.4 14.142 7.366
2018 47.1 13.251 7.529
2019 45.3 13.11 7.521
2020 45.5
2021

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