期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 116, 期 42, 页码 22502-22508出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp3036296
关键词
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Applying first principles electronic structure calculations and molecular dynamics (MD) simulations we have studied the structural stability, hydrogen adsorption capability and hydrogen desorption kinetics of Y-decorated single walled carbon nanotube (SWCNT). We have predicted that a single Y atom attached on SWCNT can physisorb up to six hydrogen molecules which is not reported so far. Our MD simulations with four Y atoms placed at the alternate hexagons of SWCNT showed no clustering effect of Y atoms at room temperature and also we found that the system is stable even at higher temperature (700 K). For the first time we showed that 100% desorption at comparatively lower temperature can be achieved in a transition metal decorated SWCNT system. Therefore the Y-decorated SWCNT has the potential to become a promising hydrogen storage device.
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