Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 16, Pages 8386-8392Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp200049y
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Funding
- National Science Foundation [HRD-0833180]
- Division Of Human Resource Development
- Direct For Education and Human Resources [833180] Funding Source: National Science Foundation
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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.
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