Gas-sensing performance of SnO2-based chemoresistive sensors after irradiation with alpha particles and gamma-rays

G. Zonta; M. Astolfi; N. Cerboni; S. Gherardi; M. Kasprzak; C. Malagù; P. Steinegger; D. Vincenzi; N. M. Chiera

doi:10.1007/s10967-023-09340-2

Gas-sensing performance of SnO₂-based chemoresistive sensors after irradiation with alpha particles and gamma-rays

G. Zonta, M. Astolfi, N. Cerboni, S. Gherardi, M. Kasprzak, C. Malagù, P. Steinegger, D. Vincenzi, N. M. Chiera

Research output: Contribution to journal › Article › peer-review

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
Pages (from-to)	995-1004
Number of pages	10
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	333
Issue number	2
DOIs	https://doi.org/10.1007/s10967-023-09340-2
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
Ministero dell’Istruzione, dell’Università e della Ricerca	PRIN 2017KC8WMB
Paul Scherrer Institut

Keywords

Alpha-irradiation
Chemoresistivity
Gamma-irradiation
Gas sensors
SnO

Access to Document

10.1007/s10967-023-09340-2

Cite this

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title = "Gas-sensing performance of SnO2-based chemoresistive sensors after irradiation with alpha particles and gamma-rays",

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.",

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AU - Zonta, G.

AU - Astolfi, M.

AU - Cerboni, N.

AU - Gherardi, S.

AU - Kasprzak, M.

AU - Malagù, C.

AU - Steinegger, P.

AU - Vincenzi, D.

AU - Chiera, N. M.

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AB - 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.

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