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Title: Thermodynamic study on the solubility of NaBH4 and NaBO2 in NaOH solutions
Authors: Shang, Yinghong
Chen, Rui
Keywords: Hydrogen production
Alternative fuels
Issue Date: 2011
Publisher: © Society of Automotive Engineers of Japan and SAE International
Citation: SHANG, Y.-H. and CHEN, R., 2011. Thermodynamic study on the solubility of NaBH4 and NaBO2 in NaOH solutions. (SAE Technical Paper ; 2011-01-1741.) Warrendale, PA: SAE International, 2011.
Series/Report no.: SAE Technical Paper;2011-01-1741
JSAE Paper;20119052
Abstract: Extensive research has been performed for on-board hydrogen generation, such as pyrolysis of metal hydrides (e.g. LiH, MgH), hydrogen storages in adsorption materials (e.g. carbon nanotubes and graphites), compressed hydrogen tanks and the hydrolysis of chemical hydrides. Among these methods, the hydrolysis of NaBH has attracted great attention due to the high stability of its alkaline solution and the relatively high energy density, with further advantages such as moderate temperature range (from -5°C to 100°C) requirement, non-flammable, no side reactions or other volatile products, high purity H output. The H energy density contained by the system is fully depend on the solubility of the complicated solution contains reactant, product and the solution stabiliser. In this work, an approach based on thermodynamic equilibrium was proposed to model the relationship between the solubility of an electrolyte and temperature, and the effect of another component on its solubility. The relationship was then applied to NaBH and NaBO aqueous solutions, and the effect of introduction of NaOH on their solubility after deriving their solubility from phase diagrams. The data has been shown in good agreement with the proposed model.
Description: Copyright © 2011 SAE International. This paper is posted on this site with permission from SAE International. It may not be shared, downloaded, duplicated, printed or transmitted in any manner, or stored on any additional repositories or retrieval system without prior written permission from SAE.
Version: Published
DOI: 10.4271/2011-01-1741
URI: https://dspace.lboro.ac.uk/2134/15637
Publisher Link: http://dx.doi.org/10.4271/2011-01-1741
ISSN: 0148-7191
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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