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Researchers Examine Potential For 'Refilling' Hydrogen Storage Material

Date:
September 13, 2005
Source:
Pacific Northwest National Laboratory
Summary:
Performing quantum calculations on a supercomputer, scientists at Pacific Northwest National Laboratory have characterized a material that might allow on-board refueling of hydrogen powered vehicles.
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Diammoniate of diborane (DADB) may spontaneously uptake hydrogen fuel.
Credit: Image courtesy of Pacific Northwest National Laboratory

Performing quantum calculations on a supercomputer, scientists atPacific Northwest National Laboratory have characterized a materialthat might allow on-board refueling of hydrogen powered vehicles.

Researchers, led by Maciej Gutowski, looked at different crystallinestructures of a compound made up of nitrogen, boron and hydrogen - NBH6- and found one that might be more stable compared to ammonia borane, amolecular crystal built of NH3BH3 molecules. Ammonia borane can hold alot of hydrogen but isn't easily reversible -- able to be refilled withhydrogen. Ammonia borane, as a storage material, would likely have tobe removed from the vehicle and be sent to some sort of processingplant and undergo a reaction to be refilled.

The more stable compound, diammoniate of diborane or DADB, holds morepromise for reversibility. Initial thermodynamic properties for thecompound indicate that it might spontaneously uptake hydrogen fuel.

This work is performed under the Grand Challenge Project "Computationalstudies of materials to hydrogen storage" in the Molecular SciencesComputing Facility at PNNL. Researchers plan to perform additionalcalculations, synthesize the diammoniate of diborane compound and testtheir theories on the material in the coming year

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Pacific Northwest NationalLaboratory researcher Maciej Gutowski will be presenting his results atthe 230th national meeting of the American Chemical Society 8:40 a.m.,Monday, Aug. 29


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The above post is reprinted from materials provided by Pacific Northwest National Laboratory. Note: Materials may be edited for content and length.


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Pacific Northwest National Laboratory. "Researchers Examine Potential For 'Refilling' Hydrogen Storage Material." ScienceDaily. ScienceDaily, 13 September 2005. <www.sciencedaily.com/releases/2005/09/050911111318.htm>.
Pacific Northwest National Laboratory. (2005, September 13). Researchers Examine Potential For 'Refilling' Hydrogen Storage Material. ScienceDaily. Retrieved June 30, 2015 from www.sciencedaily.com/releases/2005/09/050911111318.htm
Pacific Northwest National Laboratory. "Researchers Examine Potential For 'Refilling' Hydrogen Storage Material." ScienceDaily. www.sciencedaily.com/releases/2005/09/050911111318.htm (accessed June 30, 2015).

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