Chemistry of inorganic compounds – Boron or compound thereof – Nitrogen and hydrogen containing
Reexamination Certificate
2011-03-01
2011-03-01
Langel, Wayne (Department: 1736)
Chemistry of inorganic compounds
Boron or compound thereof
Nitrogen and hydrogen containing
C252S188250, C429S218200
Reexamination Certificate
active
07897129
ABSTRACT:
The present invention discloses new methods for synthesizing ammonia borane (NH3BH3, or AB). Ammonium borohydride (NH4BH4) is formed from the reaction of borohydride salts and ammonium salts in liquid ammonia. Ammonium borohydride is decomposed in an ether-based solvent that yields AB at a near quantitative yield. The AB product shows promise as a chemical hydrogen storage material for fuel cell powered applications.
REFERENCES:
patent: 7695704 (2010-04-01), Wolf et al.
patent: 2007120511 (2007-10-01), None
Parry et al.“The Crystalline Compound Ammonia-Borane H3NBH3” 1955, Journal of American Chemical Society, 77(22), p. 6084-6085.
Shore et al. “Chemical Evidence for the Structure of the “Diammoniate of Diborane” The preparatio f Ammonia -Borane” 1956, American Chemical Society, vol. 80, p. 8-12.
Brigs et al. “Kinetics of the reaction of ammonium Ion with Hydroborate Ion in liquid Ammonia”1975, Inorganic Chemistry vol. 14(9) , p. 2267-2268.
Ramachandran, P. Veeraraghavan, et al., Preparation of Ammonia Borane in High Yield and Purity, Methanolysis, and Regeneration, Inorganic Chemistry, vol. 46, No. 19, 2007, 7810-7817.
Mayer, Erwin, Conversion of dihydridodiammineboron(III) borohydride to ammonia-borane without hydrogen evolution, Inorganic Chemistry, 12 (8), 1973, 1954-1955.
Mayer, Erwin, Symmetrical cleavage of diborane by ammonia in solution, Inorganic Chemistry, 11 (4), 1972, 866-869.
Briggs, Thomas S., et al., Kinetics of the reacion of ammonium ion with hydroborate ion in liquid ammonia, Inorganic Chemistry, 14 (9), 1975, 2267-2268.
Shore, S. G. et al., Large Scale Synthesis of HB(NH)+BH- and HNBH, Inorganic Chemistry, 3 (6), 1964, 914-915.
Shore, S. G. et al., Chemical Evidence for the Structure of the “Diammoniate of Diborane.” II. The Preparation of Ammonia Borane, Journal of the American Chemical Society, 80 (1), 1958, 8-12.
PCT International Search Report/Written Opinion.
Heldebrant, David J. et al., Synthesis of Ammonia Borane for Hydrogen Storage Applications, Energy and Environmental Science, Royal Society of Chemistry, vol. 1, No. 1, Jul.1, 2008.
Langmi, Henrietta W. et al., Non-Hydride Systems of the Main Group Elements as Hydrogen Storage Materials, Coordination Chemistry Reviews, Elsevier Science, Amsterdam, NL, vol. 251, No. 7-8, Feb. 13, 2007.
Shore, S. G. et al., Chemical Evidence for the Structure of the Diammoniate of Diborane. II. The Preparation of Ammonia-Borane, Journal of the American Chemical Society, American Chemical Society, Washington DC, US, vol. 80, Jan. 1, 1958.
Parry, R. W. et al., The Preparation and Properties of Hexamminecobalt (III) Borohydride, Hexamminechromium (III) Borohydride and Ammonium Borohydride, Journal of the American Chemical Society, vol. 80, Jan. 11, 1958.
Krumpol, M., Ammonium Borohydride—A Novel, Hydrogen-Rich Material for Polarized Targets, AIP Conference Proceedings, vol. 95, Mar. 15, 1983.
Autrey S. Thomas
Heldebrant David J.
Karkamkar Abhijeet J.
Linehan John C.
Zheng Feng
Battelle (Memorial Institute)
Iqbal Syed
Langel Wayne
Matheson James D.
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