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H2 production from the radiolysis of aqueous suspensions of ZnO nanoparticles by 5.5 MeV He2+ ions

  • The effects of ion beam irradiation on aqueous suspensions of metal oxides has received relatively little attention compared to γ-ray irradiation despite being a highly prevalent process in spent nuclear fuel storage and reprocessing. This is partly due to the difficulties associated with homogeneously irradiating condensed-phase matter using α-particles. Here, we report experimental yields of H2 from the 5.5 MeV He2+ ion irradiation of aqueous suspensions of ZnO nanoparticles. The obtained results are compared to our previously measured results for the γ-radiolysis of the same system. The amount of H2 increases linearly with adsorbed dose for all studied concentrations. The measured yields are of the same order of magnitude as those observed for pure water, but decrease with increasing water content. Overall, the yields follow a similar trend to those observed for γ-ray radiolysis.

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Author:Jamie S. Southworth, Simon M. Pimblott, Sven P. K. KöhlerORCiD
DOI original:https://doi.org/10.1016/j.radphyschem.2022.110189
Parent Title (English):Radiation Physics and Chemistry
Document Type:Article
Year of Completion:2022
Publishing Institution:Hochschule Hannover
Release Date:2024/05/06
Tag:ion beam; metal oxides
GND Keyword:Ionenstrahl; Metalloxide; Suspension
Article Number:110189
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:660 Technische Chemie
Licence (German):License LogoCreative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International