Results 11 to 20 of about 3,729 (203)
Efficient Organocatalytic Dehydrogenation of Ammonia Borane [PDF]
Angewandte Chemie - International Edition, 2020 AbstractDehydrogenation of ammonia borane by sterically encumbered pyridones as organocatalysts is reported. With 6‐tert‐butyl‐2‐thiopyridone as the catalyst, a turnover frequency (TOF) of 88 h−1 was achieved. Experimental mechanistic investigations, substantiated by DLPNO‐CCSD(T) computations, indicate a mechanistic scenario that commences with the ...
Max Hasenbeck +2 more
exaly +7 more sources
Ammonia–Borane-Mediated Reduction of Nitroalkenes [PDF]
SynOpen, 2020 Ammonia borane (AB) has been successfully employed in the reduction of nitroalkenes. A variety of nitrostyrenes and alkyl-substituted nitroalkenes were chemoselectively reduced to the corresponding nitroalkanes, in short reaction time, with an atom ...
Chiara Faverio +3 more
doaj +3 more sources
Borane-Catalyzed Transfer Hydrogenations of Pyridines with Ammonia Borane
Organic Letters, 2016 With the use of ammonia borane as a hydrogen source, a borane catalyzed metal-free transfer hydrogenation of pyridines was successfully realized for the first time to furnish a variety of piperidines in 44-88% yields with moderate to excellent cis-selectivities.
Qiwen, Zhou +5 more
openaire +3 more sources
Chemical Engineering Transactions, 2020 As a material with high hydrogen storage density, ammonia borane has attracted the attention of researchers. Ammonia borane can release hydrogen gas through hydrolytic dehydrogenation and pyrolysis dehydrogenation, where hydrolytic dehydrogenation has a ...
Suitao Qi +3 more
doaj +2 more sources
Dipole Moment of Ammonia-Borane [PDF]
The Journal of Chemical Physics, 1958 The dipole moment of ammonia-borane, H3NBH3, has been measured as 4.9 debye units in dioxane solution; the results are discussed briefly.
Weaver, J. R. +2 more
openaire +3 more sources
Efficient Near-Infrared-Activated Photocatalytic Hydrogen Evolution from Ammonia Borane with Core-Shell Upconversion-Semiconductor Hybrid Nanostructures [PDF]
Nanomaterials, 2021 In this work, the photocatalytic hydrogen evolution from ammonia borane under near-infrared laser irradiation at ambient temperature was demonstrated by using the novel core-shell upconversion-semiconductor hybrid nanostructures (NaGdF4:Yb3+/Er3+@NaGdF4 ...
Andrew J. Evangelista +2 more
doaj +2 more sources
Effect of Functional Group-Modified UiO-66 on the Dehydrogenation of Ammonia Borane [PDF]
MoleculesAmmonia borane (AB) has attracted much attention in the field of solid-state hydrogen storage due to its high hydrogen storage capacity. Nanoconfinement in UiO-66 can reduce the hydrogen release temperature. In particular, terephthalic acid was used as a
Senliang Xi +6 more
doaj +2 more sources
Practical H2 supply from ammonia borane enabled by amorphous iron domain [PDF]
Nature CommunicationsEfficient catalysis of ammonia borane (AB) holds potential for realizing controlled energy release from hydrogen fuel and addressing cost challenges faced by hydrogen storage.
Yufeng Chen +8 more
doaj +2 more sources
Dehydrogenation of ammonia borane in fluoro alcohols
International Journal of Hydrogen Energy, 2010 Dehydrogenation of ammonia borane was carried out in fluor alcohol solvent in order to obtain compounds that are more likely candidates suitable for regeneration. Even though ammonia borane undergoes self-dissociation in 2,2,2-trifluoroethanol to liberate H-2, decent hydrogen release rates were obtained by using Co-Co2B, Ni-Ni3B, and Co-Ni-B ...
Kalidindi, Suresh Babu +2 more
openaire +3 more sources
Energies, 2021 Chemical hydrogen storage stands as a promising option to conventional storage methods. There are numerous hydrogen carrier molecules that afford satisfactory hydrogen capacity.
Miriam Navlani-García +2 more
doaj +1 more source