Promotion of hydrogen release from ammonia borane with mechanically activated hexagonal boron nitride

Doinita Neiner; Abhijeet Karkamkar; John C. Linehan; Bruce Arey; Tom Autrey; Susan M. Kauzlarich

doi:10.1021/jp8087385

Promotion of hydrogen release from ammonia borane with mechanically activated hexagonal boron nitride

Doinita Neiner, Abhijeet Karkamkar, John C. Linehan, Bruce Arey, Tom Autrey, Susan M. Kauzlarich

Chemistry

Research output: Contribution to journal › Article › peer-review

84 Scopus citations

Abstract

Nanoscale hexagonal BN additive for ammonia borane, AB, is shown to decrease the onset temperature for hydrogen release. Both the nano-BN and the AB:nano-BN samples are prepared by ball milling. The materials are characterized by X-ray powder diffraction, ¹¹B muclear magnetic resonance, thermogravimetric analysis, differential scanning calorimetry, and mass spectrometry, and the hydrogen release is measured by a volumetric gas burette system. Several effects of the mixtures of AB:nano-BN are shown to be beneficial in comparison with neat AB. These are the decrease of the dehydrogenation temperature, the decrease in NH ₃ formation, as well as the decrease of the exothermicity of hydrogen release with increasing the nano-BN concentration.

Original language	English (US)
Pages (from-to)	1098-1103
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	3
DOIs	https://doi.org/10.1021/jp8087385
State	Published - Jan 22 2009

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films
Energy(all)

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abstract = "Nanoscale hexagonal BN additive for ammonia borane, AB, is shown to decrease the onset temperature for hydrogen release. Both the nano-BN and the AB:nano-BN samples are prepared by ball milling. The materials are characterized by X-ray powder diffraction, 11B muclear magnetic resonance, thermogravimetric analysis, differential scanning calorimetry, and mass spectrometry, and the hydrogen release is measured by a volumetric gas burette system. Several effects of the mixtures of AB:nano-BN are shown to be beneficial in comparison with neat AB. These are the decrease of the dehydrogenation temperature, the decrease in NH 3 formation, as well as the decrease of the exothermicity of hydrogen release with increasing the nano-BN concentration.",

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T1 - Promotion of hydrogen release from ammonia borane with mechanically activated hexagonal boron nitride

AU - Neiner, Doinita

AU - Karkamkar, Abhijeet

AU - Linehan, John C.

AU - Arey, Bruce

AU - Autrey, Tom

AU - Kauzlarich, Susan M.

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