Hydrogen production from hydrolysis of ammonia borane with limited water supply

Chang Chen Chou, Duu Jong Lee, Bing-Hung Chen

研究成果: Article

14 引文 (Scopus)

摘要

Effect of limited water supply to hydrolysis of ammonia borane for hydrogen evolution is studied over the cases in which the initial molar ratio of water to ammonia borane (H 2O/AB) is set at 1.28, 2.57 and 4.50. The conversion efficiency of ammonia borane to hydrogen is estimated from the accumulated volume of produced hydrogen gas and the quantitative analysis of hydrolysate by solid-state 11B NMR. Characteristics of hydrogen evolution are significantly influenced by both water dosage and injection rate of water. In the case that water is a limiting agent, namely, H 2O/AB = 1.28, less hydrogen is produced than that predicted stoichiometrically. In contrast, conversion efficiency of ammonia borane reaches nearly 100% for the case with H 2O/AB = 4.50. Injection rate of water to ammonia borane also affect profoundly the produced volume and production rate of hydrogen, if water is used as a limiting agent in the hydrolysis of ammonia borane. Nonetheless, boric acid and metaboric acid are found to be the dominant products in the hydrolysate from XRD, FT-IR and solid-state 11B NMR analysis. The hydrogen storage capacity using limited water supply in this work could reach as high as about 5.33 wt%, based on combined mass of reactants and catalyst.

原文English
頁(從 - 到)15681-15690
頁數10
期刊International Journal of Hydrogen Energy
37
發行號20
DOIs
出版狀態Published - 2012 十月 1

指紋

boranes
hydrogen production
Hydrogen production
Water supply
hydrolysis
ammonia
Ammonia
Hydrolysis
Hydrogen
hydrogen
water
Water
Conversion efficiency
injection
solid state
Nuclear magnetic resonance
boric acids
nuclear magnetic resonance
Boric acid
Hydrogen storage

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

引用此文

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Hydrogen production from hydrolysis of ammonia borane with limited water supply. / Chou, Chang Chen; Lee, Duu Jong; Chen, Bing-Hung.

於: International Journal of Hydrogen Energy, 卷 37, 編號 20, 01.10.2012, p. 15681-15690.

研究成果: Article

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