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Title: An old solution to a new problem? Hydrogen generation by the reaction of ferrosilicon with aqueous sodium hydroxide solutions
Authors: Brack, Paul
Dann, Sandra E.
Wijayantha, K.G.U.
Foster, Simon
Adcock, Paul
Keywords: Chemical hydrogen storage
Hydrogen generation
Issue Date: 2015
Publisher: Society of Chemical Industry and John Wiley & Sons Ltd (© The Authors)
Citation: BRACK, P. ... et al, 2015. An old solution to a new problem? Hydrogen generation by the reaction of ferrosilicon with aqueous sodium hydroxide solutions. Energy Science and Engineering, 3 (6), pp.535-540
Abstract: The chemical hydrogen storage properties of ferrosilicon were investigated. A hydrogen yield of ~4.75 wt.% (with respect to the mass of ferrosilicon) was estimated by the reaction of varying quantities of ferrosilicon with 5 mL of 40 wt.% sodium hydroxide solution. The reaction of ferrosilicon with aqueous sodium hydroxide solution to form hydrogen was found to have an activation energy of 90.5 kJ mol −1 by means of an Arrhenius plot. It was observed that the induction period of the hydrogen generation reaction varies exponentially with temperature. Although this combination of high activation energy and a lengthy induction period at low temperatures reduces the attractiveness of ferrosilicon for portable hydrogen storage applications unless methods can be developed to accelerate the onset and rate of hydrogen generation, its low cost and widespread availability make it attractive for further studies focused on higher temperature stationary applications.
Description: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Sponsor: The authors would like to thank the Engineering and Physical Sciences Research Council (EPSRC) and Intelligent Energy Ltd for funding this project.
Version: Published
DOI: 10.1002/ese3.94
URI: https://dspace.lboro.ac.uk/2134/20102
Publisher Link: http://dx.doi.org/10.1002/ese3.94
Appears in Collections:Published Articles (Chemistry)

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