Pure and (8%)Y2O3-doped zirconium oxide commercial samples were investigated for developing a high performance conductometric hydrogen sensor. The morphological, microstructural, optical, and electrical characteristics of the samples were studied and compared. Conductometric sensors based on these samples were fabricated using a planar platform in alumina provided with interdigitated electrodes, and sensing tests were carried at different operating temperatures and hydrogen concentrations. Sensing tests revealed that the fabricated sensor based on the tetragonal ZrO2eY2O3 (8%) showed the best performances in terms of sensor response (R0/RH2 ¼ 7.3@10000 ppm of hydrogen), response and recovery time (5 and 10 s, respectively), and low operating temperature (150 C). These characteristics have been exploited for developing the first hydrogen leak conductometric sensor based on ZrO2 so far reported.

A novel yttria-doped ZrO2 based conductometric sensor for hydrogen leak monitoring

Angelo Ferlazzo;Claudia Espro;Daniela Iannazzo;Kaveh Moulaee;Giovanni Neri
2022

Abstract

Pure and (8%)Y2O3-doped zirconium oxide commercial samples were investigated for developing a high performance conductometric hydrogen sensor. The morphological, microstructural, optical, and electrical characteristics of the samples were studied and compared. Conductometric sensors based on these samples were fabricated using a planar platform in alumina provided with interdigitated electrodes, and sensing tests were carried at different operating temperatures and hydrogen concentrations. Sensing tests revealed that the fabricated sensor based on the tetragonal ZrO2eY2O3 (8%) showed the best performances in terms of sensor response (R0/RH2 ¼ 7.3@10000 ppm of hydrogen), response and recovery time (5 and 10 s, respectively), and low operating temperature (150 C). These characteristics have been exploited for developing the first hydrogen leak conductometric sensor based on ZrO2 so far reported.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/3224176
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? ND
social impact