Graphene-carbon formed into sheets a single atom thick-now appears to be a promising base material for capturing hydrogen according to recent research at the National Institute of Standards and Technology (NIST) and the University of Pennsylvania
The findings suggest stacks of graphene layers could potentially store hydrogen safely for use in fuel cells and other applications. Graphene has become something of a celebrity material in recent years due to its conductive, thermal and optical properties, which could make it useful in a range of sensors and semiconductor devices.
The material does not store hydrogen well in its original form, according to a team of scientists studying it at the NIST Center for Neutron Research.
But if oxidized graphene sheets are stacked atop one another like the decks of a multilevel parking lot, connected by molecules that both link the layers to one another and maintain space between them, the resulting graphene-oxide framework (GOF) can accumulate hydrogen in greater quantities.
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