MP5 - (MgCoNiCuZn)O High-Entropy Oxide as Novel Gas Sensing Material
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster I
- Chapter
- Bio/chemical and Environmental Sensors
- Author(s)
- I. Vergés Gazulla, P. Pellegrino, G. Domenech Gil, A. Romano Rodriguez - Universitat de Barcelona, Barcelona (Spain)
- Pages
- 212 - 213
- DOI
- 10.5162/EUROSENSORS2025/MP5
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
We report the performance of (MgCoNiCuZn)O material as chemoresistive gas sensor, both against reducing and oxidizing agents at different temperatures. The active material has been synthetized by mixing the different oxides in the form of nanopowers and applying a thermal treatment at 10⁰⁰ ºC for several hours, quenching the resulting rock-salt compound by a rapid cooling. The structural character-ization confirms the formation of a uniform elemental distribution and single-phase formation. The chemoresistive response of the material has been assessed against several gases, such as humidity, sulfur dioxide and methane. We determined the p-type semiconductor character of the material and get first insights of its temperature behavior and its sensing mechanisms.