Possible use of carbon nanotube for storing hydrogen
4 February 2008Hydrogen is one of the modern fuel and it can be produced from water and it is used as fuel cells for generating electricity or running vehicles. One of the major challenge for fuel cell is the storage device. A number of research activities are going on for finding carbon nanotube for storing and transporting hydrogen gas.
At present hydrogen is stored in absorbed form and it is released at an appropriate rate as and when it is required. There has been considerable research and Dillon and his teams claimed that single wall carbon nanotube (SWCNT) can successfully store hydrogen. Scientists proposed that hydrogen in carbon nanotube is stored by physisorption and chemisorption.
Recent study suggest that the Density Function Theory (DFT) estimates a potential up to 7.5% wt. hydrogen storage capacity in single wall carbon nanotubes (SWCNT), which is much higher than the 6% wt. of hydrogen in hydrogen storage capacity to be considered for economical and technical implementation as recommended by DOE.
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