Toward regenerating ammonia borane from spent fuel

Donald M. Camaioni, David J. Heldebrant, John C. Linehan, Wendy J. Shaw, Jun Li, Daniel L. DuBois, Tom Autrey

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Ammonia borane (AB) is a solid with high gravimetric and volumetric density of hydrogen that can be released at temperatures suitable for practical application as an on-board hydrogen storage material for fuel cell-powered vehicles. Hydrogen release is exothermic and exorgonic, such that it is impractical to regenerate AB from the dehydrogenated spent fuel by just an overpressure of H2. AB will need to be regenerated off board by other routes. Recent work at PNNL has shown that it is possible to digest the spent fuel with alcohol and ammonia in diglyme at room temperature to obtain a borate ester while recovering residual B-H contained in polyborazylene structures as AB. In addition to presenting these encouraging results, we will describe developments toward new routes for reducing borate esters to AB. (PNNL is operated by Battelle for the US DOE.).

Original languageEnglish
Title of host publication234th ACS National Meeting, Abstracts of Scientific Papers
Publication statusPublished - Dec 31 2007
Event234th ACS National Meeting - Boston, MA, United States
Duration: Aug 19 2007Aug 23 2007

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727


Other234th ACS National Meeting
CountryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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