Hydride transfer from transition metal complexes to BX3: An approach to the regeneration of ammonia borane from H2

Michael T. Mock, Robert G. Potter, Daniel L DuBois, Donald M. Camaioni, Tom Autrey, John Linehan

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

Abstract

Ammonia Borane (AB), NH3BH3, is currently being examined as a material for the storage and distribution of hydrogen as an alternative to hydrocarbon fuels. The direct regeneration of dehydrogenated AB from dihydrogen is thermodynamically unfavorable and an economical method for the regeneration of AB remains a challenge. The complex [Rh(dmpe)2](CF3SO3) activates H2 and in the presence of a base, generates a strong hydride donor, HRh(dmpe)2. Our studies investigate the formation of B-H bonds via hydride transfer reactions from HRh(dmpe)2 to boron containing substrates. Experimental data support theoretical calculations that predict the hydride affinity of a variety of boron compounds. These combined initial studies are part of a novel regeneration scheme that couples spent AB fuel digestion with reduction of boron via the catalytic activation of dihydrogen. (Battelle operates PNNL for the U.S. Department of Energy).

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2008
Event236th National Meeting and Exposition of the American Chemical Society, ACS 2008 - Philadelpia, PA, United States
Duration: Aug 17 2008Aug 21 2008

Other

Other236th National Meeting and Exposition of the American Chemical Society, ACS 2008
CountryUnited States
CityPhiladelpia, PA
Period8/17/088/21/08

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Mock, M. T., Potter, R. G., DuBois, D. L., Camaioni, D. M., Autrey, T., & Linehan, J. (2008). Hydride transfer from transition metal complexes to BX3: An approach to the regeneration of ammonia borane from H2. In ACS National Meeting Book of Abstracts