Abstract
SnO2-based chemoresistive sensors were tested for the detection of H2O and CO impurities both before and after exposure to α-particles and γ-rays, assessing their radiation resistance for use in moderately radioactive environments. The materials examined were SnO2 with gold nanoparticles, and a mix of Sn-, Ti-, and Nb-oxides. The performance was evaluated in both an open-ended gas-flow setup and in a gas-loop system. Post-irradiation characterization via scanning electron microscopy and energy-dispersive X-ray spectroscopy was performed to assess morphological changes. Preliminary results showed a fast and efficient response of the sensors after irradiation, indicating their suitability for this novel use.
Original language | English |
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Pages (from-to) | 995-1004 |
Number of pages | 10 |
Journal | Journal of Radioanalytical and Nuclear Chemistry |
Volume | 333 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2024 |
Externally published | Yes |
Funding
This project has been supported and partially funded by the Italian Ministry of Education, University and Research (PRIN 2017KC8WMB). The authors acknowledge Dr. N. Samadi (PSI) for the SEM analysis of the SnO2(Au) chemosensors.
Funders | Funder number |
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Ministero dell’Istruzione, dell’Università e della Ricerca | PRIN 2017KC8WMB |
Paul Scherrer Institut |
Keywords
- Alpha-irradiation
- Chemoresistivity
- Gamma-irradiation
- Gas sensors
- SnO