Mechanistic studies of hydrogen release from solid amine borane materials

Mark Bowden, Tim Kemmitt, Wendy Shaw, Nancy Hess, John Linehan, Maciej Gutowski, Benjamin Schmid, Tom Autrey

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

9 Citations (Scopus)

Abstract

Ammonia borane (NH3BH3) is a molecular solid with a high volumetric and gravimetric density of hydrogen. We report room temperature structural data which shows how the freely rotating NH3 and BH 3 groups allow a N-H...H-B dihydrogen bond in which hydrogen atoms on adjacent molecules are separated by only 1.90Å. The initial decomposition of ammonia borane at 80-100°C into (NH2BH2) n and H2 has been studied by in-situ nmr spectroscopy and kinetic studies using isotopic substitution. The reaction proceeds by a bimolecular pathway involving a [NH3BH2NH 3]+BH4 - intermediate with an activation energy of 136kJmol-1.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages9-14
Number of pages6
Volume927
Publication statusPublished - 2006
Event2006 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 17 2006Apr 21 2006

Other

Other2006 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/17/064/21/06

Fingerprint

Boranes
Ammonia
Amines
Hydrogen
Substitution reactions
Activation energy
Spectroscopy
Decomposition
Atoms
Molecules
Kinetics
Temperature
BH 3

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Bowden, M., Kemmitt, T., Shaw, W., Hess, N., Linehan, J., Gutowski, M., ... Autrey, T. (2006). Mechanistic studies of hydrogen release from solid amine borane materials. In Materials Research Society Symposium Proceedings (Vol. 927, pp. 9-14)

Mechanistic studies of hydrogen release from solid amine borane materials. / Bowden, Mark; Kemmitt, Tim; Shaw, Wendy; Hess, Nancy; Linehan, John; Gutowski, Maciej; Schmid, Benjamin; Autrey, Tom.

Materials Research Society Symposium Proceedings. Vol. 927 2006. p. 9-14.

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

Bowden, M, Kemmitt, T, Shaw, W, Hess, N, Linehan, J, Gutowski, M, Schmid, B & Autrey, T 2006, Mechanistic studies of hydrogen release from solid amine borane materials. in Materials Research Society Symposium Proceedings. vol. 927, pp. 9-14, 2006 MRS Spring Meeting, San Francisco, CA, United States, 4/17/06.
Bowden M, Kemmitt T, Shaw W, Hess N, Linehan J, Gutowski M et al. Mechanistic studies of hydrogen release from solid amine borane materials. In Materials Research Society Symposium Proceedings. Vol. 927. 2006. p. 9-14
Bowden, Mark ; Kemmitt, Tim ; Shaw, Wendy ; Hess, Nancy ; Linehan, John ; Gutowski, Maciej ; Schmid, Benjamin ; Autrey, Tom. / Mechanistic studies of hydrogen release from solid amine borane materials. Materials Research Society Symposium Proceedings. Vol. 927 2006. pp. 9-14
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