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Technology update

Mar 6, 2007

New hydrogen-storing nanomaterial revealed

Computer simulations have identified a new class of materials, metal-diboride nanotubes, with a large capacity for storing hydrogen. Sheng Meng of the University of Texas, Zhenyu Zhang of Oak Ridge National Laboratory and the University of Tennessee, and Efthimios Kaxiras of Harvard University have found that titanium boride nanotubes can reversibly store 5.5 wt% of hydrogen. More importantly, the binding energies of the nanotubes fall in the range of 0.2 to 0.6 eV per hydrogen molecule, which means they are promising candidates for room-temperature applications.

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