Hydrolysis of Ammonia-Borane over Ni/ZIF-8 Nanocatalyst: High Efficiency, Mechanism, and Controlled Hydrogen Release
نویسندگان
چکیده
منابع مشابه
Hydrogen Release From Ammonia Borane
Development of a safe and efficient storage medium for hydrogen is integral to its use as an alternative energy source. The overall goal of the studies described in this dissertation was to investigate the use of a chemical hydride, ammonia borane (AB (19.6 wt% H2)), as a potentially efficient material for hydrogen storage. The specific goals of this study were both to develop new efficient met...
متن کاملZIF-8 immobilized nickel nanoparticles: highly effective catalysts for hydrogen generation from hydrolysis of ammonia borane.
Highly dispersed Ni nanoparticles have been successfully immobilized by the zeolitic metal-organic framework ZIF-8 via sequential deposition-reduction methods, which show high catalytic activity and long durability for hydrogen generation from hydrolysis of aqueous ammonia borane (NH(3)BH(3)) at room temperature.
متن کاملPromotion of hydrogen release from ammonia borane with magnesium nitride.
Hydrogen release from ammonia borane (NH(3)BH(3), AB) can be greatly promoted by mechanical milling with magnesium nitride (Mg(3)N(2)). For example, a post-milled 6AB/Mg(3)N(2) sample started to release hydrogen from ∼65 °C and gave a material-based hydrogen capacity of ∼11 wt% upon heating to 300 °C. In addition to the improved dehydrogenation kinetics, the 6AB/Mg(3)N(2) sample also showed sat...
متن کاملComplete hydrogen release from aqueous ammonia-borane over a platinum-loaded titanium dioxide photocatalyst.
Complete H2 release from ammonia-borane (NH3BH3, AB) in water was achieved by using platinum-loaded TiO2 (Pt/TiO2) via two consecutive reaction steps, i.e., hydrolysis of AB and photocatalytic decomposition of thus formed NH3 in water, under inert conditions at 298 K.
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Intensive efforts have been devoted to the development of new materials for safe and efficient hydrogen storage. Among them, ammonia-borane appears to be a promising candidate due to its high gravimetric hydrogen storage capacity. Ammonia-borane can release hydrogen on hydrolysis in aqueous solution under mild conditions in the presence of a suitable catalyst. Herein, we report the synthesis of...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2017
ISSN: 0002-7863,1520-5126
DOI: 10.1021/jacs.7b06859