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Publication
Scale-up of a clean hydrogen production system through the hydrolysis of sodium borohydride for off-grid applications
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Advisor(s)
Abstract(s)
ABSTRACT: Hydrogen is considered a promising energy vector with the potential to replace fossil fuels, and sodium borohydride serves as an effective energy carrier capable of releasing hydrogen (H2) for off-grid applications. However, the hydrolysis of sodium borohydride has only matured at laboratory-scale. Therefore, the scale-up of a laboratory reactor was designed and manufactured to study the effect of larger H2 production. For that, the effect of inhibitor NaOH concentration and water quality were studied. Experiments using 3 wt% NaOH showed overall better performance than those using 1 wt%. Additionally, experiments using tap water - scarcely reported in the literature - demonstrated performance equal to or better than that achieved with distilled water. These results are indicative of a possible significant reduction in the H2 production cost through this method.
Description
Keywords
Clean energy Hydrogen production Sodium borohydride Hydrolysis Fuel cells
Pedagogical Context
Citation
Silva, D. L., Nunes, H. X., Rangel, C. M. & Pinto, A. M. F. R. (2025). Scale-up of a clean hydrogen production system through the hydrolysis of sodium borohydride for off-grid applications. In: International Journal of Hydrogen Energy, 2025, vol. 144, pp. 1207–1212. https://doi.org/10.1016/j.ijhydene.2025.04.164
Publisher
Elsevier