Journal
CATALYSTS
Volume 7, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/catal7050140
Keywords
ammonia borane; density functional theory; metal catalysis; hydrogen storage
Categories
Funding
- Science Foundation Ireland (SFI) [07/SRC/B1160, 15/ERC/I3142]
- Natural Science Foundation of China [21650110464]
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Density functional theory (DFT) has been applied to study potential ammonia borane (AB) dehydrogenation pathways via new bifunctional ruthenium-based catalysts, alongside their computationally-designed iron-based counterparts (i.e., four catalysts), using the wB97XD (dispersion-included) functional. The efficiency of each catalyst was under scrutiny based on the addition of ammonia borane, with a focus on the associated activation-energy barriers, whilst hydrogen release from the catalyst was also studied in detail. Here, natural-population analysis charges were key quantities of interest. It was found that the iron-based catalysts display more promising dehydrogenation energy barriers vis-a-vis their Ru-based counterparts, and that ammonia-borane addition to the metal catalyst is more energetically favorable than dehydrogenation.
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