CO2-Enhanced Thermolytic H-2 Release from Ammonia Borane

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This work presents the accelerated dehydrogenation of ammonia borane (AB) at 85 degrees C under carbon dioxide atmosphere. The presence of CO2 significantly enhances the thermolysis kinetics, and the hydrogen release becomes faster as the: CO2 pressure increases from 1.70 to 3.67 bar. Around 4 bar of CO2, 1.33 equiv of hydrogen is released from AB in 1 h. The accelerated AB thermolysis is due to CO2 reacting with AB, or intermediates like diammoniate of diborane (DADB), or primary thermolysis products including linear dimers of aminoborane (LDAB), which accelerates AB thermolysis, and this reaction has been confirmed by ATR-FTIR, Raman, and B-11 and C-13 solid-state MAS NMR measurements.
Publisher
AMER CHEMICAL SOC
Issue Date
2011-04
Language
English
Article Type
Article
Keywords

CHEMICAL HYDROGEN STORAGE; N-H COMPOUNDS; THERMAL-DECOMPOSITION; CATALYZED DEHYDROGENATION; GENERATION; NMR; METHANOLYSIS; DERIVATIVES; FRAMEWORK; SPECTRA

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.115, no.16, pp.8386 - 8392

ISSN
1932-7447
DOI
10.1021/jp200049y
URI
http://hdl.handle.net/10203/174964
Appears in Collection
CBE-Journal Papers(저널논문)
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