Results 211 to 220 of about 11,878 (246)

Ammonia borane, past as prolog

Journal of Organometallic Chemistry, 2014
Abstract Ammonia borane (NH3BH3), the simplest of the amine boranes, has yielded its secrets grudgingly since its first attempted synthesis in 1923. Here we review aspects of its history that yield insight into its chemistry and properties with special attention to current efforts to develop ammonia borane as a solid hydrogen storage material by ...
Huizhen Li, Qiuyu Yang, Xuenian Chen, Sheldon G. Shore   +3 more
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Noncatalytic hydrothermolysis of ammonia borane

International Journal of Hydrogen Energy, 2008
Abstract Hydrolysis of ammonia borane (AB) is attractive as a chemical method for hydrogen storage. The use of catalysts is, however, usually required. In the present paper, two new methods for releasing hydrogen from AB and water are investigated which do not involve any catalyst.
Moiz Diwan, Victor Diakov, Evgeny Shafirovich, Arvind Varma   +3 more
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Dehydrogenation of ammonia-borane by Shvo's catalyst

Chemical Communications, 2010
Shvo's cyclopentadienone-ligated ruthenium complex is an efficient catalyst for the liberation of exactly two molar equivalents of hydrogen from ammonia-borane, a prospective hydrogen storage medium. The mechanism for the dehydrogenation features a ruthenium hydride resting state from which dihydrogen loss is the rate-determining step.
Brian L, Conley, Travis J, Williams
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Ammonia–borane: the hydrogen source par excellence?

Dalton Trans., 2007
Ammonia-borane, H3NBH3, is an intriguing molecule for chemical hydrogen storage applications. With both protic N-H and hydridic B-H bonds, three H atoms per main group element, and a low molecular weight, H3NBH3 has the potential to meet the stringent gravimetric and volumetric hydrogen storage capacity targets needed for transportation applications ...
Frances H, Stephens, Vincent, Pons, R, Tom Baker   +2 more
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Ammonia–(Dinitramido)boranes: High‐Energy‐Density Materials

Angewandte Chemie International Edition, 2015
AbstractTwo ammonia–(dinitramido)boranes were synthesized by the reaction of dinitroamine with ammonia–borane. These compounds are the first reported examples of (dinitramido)boranes. Ammonia–mono(dinitramido)borane is a perfectly oxygen‐balanced high‐energy‐density material (HEDM) composed of an ammonia–BH2 fuel group and a strongly oxidizing ...
Guillaume, Bélanger-Chabot, Martin, Rahm, Ralf, Haiges, Karl O, Christe   +3 more
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Ammonia Borane Hydrogen Release in Ionic Liquids

Inorganic Chemistry, 2009
The rate and extent of H(2)-release from ammonia borane (AB), a promising, high-capacity hydrogen storage material, was found to be enhanced in ionic-liquid solutions. For example, AB reactions in 1-butyl-3-methylimidazolium chloride (bmimCl) (50:50-wt %) exhibited no induction period and released 1.0 H(2)-equiv in 67 min and 2.2 H(2)-equiv in 330 min ...
Daniel W, Himmelberger, Laif R, Alden, Martin E, Bluhm, Larry G, Sneddon   +3 more
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(H3N–BH3)4: the ammonia borane tetramer

Physical Chemistry Chemical Physics, 2012
For this special edition of PCCP dealing with prediction of new molecules using quantum mechanical methods, we propose a structure for (H(3)N-BH(3))(4), the isolated ammonia borane tetramer in gas phase, for which there are no experimental reports. The structure, belonging to the S(4) point group, was found at the MP2/6-311++G(d,p) level of theory; the
Guerra, Doris, David, Jorge, Restrepo, Albeiro   +2 more
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One-Pot Synthesis of Ammonia–Borane and Trialkylamine–Boranes from Trimethyl Borate

Organic Letters, 2012
A one-pot procedure for the preparation of ammonia borane from trimethyl borate in 90% yield and >99% purity has been reported. This methodology has been modified to prepare a series of trialkylamine-boranes in 70-82% yields from trimethyl borate and lithium hydride/aluminum chloride in the presence of the corresponding trialkylamine.
P Veeraraghavan, Ramachandran, Bhimapaka C, Raju, Pravin D, Gagare   +2 more
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Ammonia Borane Nanospheres for Hydrogen Storage

ACS Applied Nano Materials, 2019
Nanosizing ammonia borane NH3BH3 (AB) is an attractive approach to make it suitable for chemical hydrogen storage. Herein is reported the successful direct preparation of ammonia borane nanospheres. No scaffold is used. The preparation is performed via a simple process using alkaline water H2O as main solvent, a common and thermally stable surfactant ...
María-José Valero-Pedraza, Didier Cot, Eddy Petit, Kondo-François Aguey-Zinsou, Johan G. Alauzun, Umit B. Demirci   +5 more
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Electrochemical Hydrogen Production from Ammonia Borane

ECS Meeting Abstracts, 2011
Abstract not Available.
Hiroshi Inoue, Toshiki Yamazaki, Takayuki Kitamura, Motoki Shimada, Masanobu Chiku, Eiji Higuchi   +5 more
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