New Pillared Graphene Material Offers Enhanced Hydrogen Storage; Close to DOE Target
New Pillared Graphene Material Offers Enhanced Hydrogen Storage; Close to DOE Target 1 October 2008 Volumetric hydrogen uptake for graphene (diamonds), (6,6) carbon nanotubes (squares), pillared material (triangles), and Li-doped pillared (stars) at (a) 77 K and (b) 300 K. Click to enlarge. Credit: ACS Researchers at the University of Crete (Greece) have designed a novel 3-D network nanostructure that almost meets the US Department of Energy (DOE) 2010 volumetric goals for hydrogen storage. The new pillared graphene material could theoretically store up to 41 grams of hydrogen per liter under ambient conditions; the DOE’s target is 45 g/L. Their study is scheduled for the 8 October issue of the ACS journal Nano Letters . Georgios K. Dimitrakakis, Emmanuel Tylianakis, and George E. Froudakis designed a unique structure consisting of parallel graphene sheets—layers of carbon just one atom thick—stabilized by vertical columns of carbon nanotubes (CNTs). The nanoporous material has by desi