Repositori institucional URV
| URV's Author/s: | Llobet Valero, Eduard / Vilanova Salas, Javier |
| Author, as appears in the article.: | Alouani, Mohamed Ayoub; Casanova-Chafer, Juan; de Bernardi-Martin, Santiago; Garcia-Gomez, Alejandra; Vilanova, Xavier; Llobet, Eduard |
| Author's mail: | xavier.vilanova@urv.cat eduard.llobet@urv.cat |
| Author identifier: | 0000-0002-6245-7933 0000-0001-6164-4342 |
| Journal publication year: | 2025 |
| Publication Type: | Journal Publications |
| APA: | Alouani, Mohamed Ayoub; Casanova-Chafer, Juan; de Bernardi-Martin, Santiago; Garcia-Gomez, Alejandra; Vilanova, Xavier; Llobet, Eduard (2025). A NO2 Sensitive MnO2/Graphene Oxide Composite Based Gas Sensor. Chemosensors (Basel), 13(3), 96-. DOI: 10.3390/chemosensors13030096 |
| Paper original source: | Chemosensors (Basel). 13 (3): 96- |
| Abstract: | Nanosized manganese dioxide (MnO2) material has been successfully incorporated into a graphene oxide (GO) sensitive layer. Since this type of heterojunction has never been reported in the literature related to gas sensing, these sensors were prepared, tested, and reported. The morphological properties and composition of the MnO2@GO material have been thoroughly studied via FESEM, XRD, Raman spectroscopy, HR-TEM, and ATR-IR. Gas sensitivity and selectivity towards mainly NO2 and other gases (NH3, CO, ethanol, benzene, and H-2) have also been studied. The obtained sensors were exposed to different concentrations of NO2 ranging from 200 ppb to 1000 ppb at 150 degrees C and under close to real conditions (25% relative humidity and 70% relative humidity). The MnO2@GO sensors have shown a high response of 16.3% towards 1 ppm of NO2 under dry conditions and a higher response of 44% at 70% RH towards the same concentration. Finally, it has also shown a strong sensitivity for NO2. |
| Article's DOI: | 10.3390/chemosensors13030096 |
| Link to the original source: | https://www.mdpi.com/2227-9040/13/3/96 |
| Paper version: | info:eu-repo/semantics/publishedVersion |
| licence for use: | https://creativecommons.org/licenses/by/3.0/es/ |
| Department: | Enginyeria Electrònica, Elèctrica i Automàtica |
| Licence document URL: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Thematic Areas: | Analytical chemistry Astronomia / física Chemistry, analytical Ciência de alimentos Ciencias sociales Electrochemistry Farmacia Instruments & instrumentation Materiais Physical and theoretical chemistry Química |
| Keywords: | Fabricatio Gas sensor Graphene oxide Humidit Humidity Manganese dioxide Nitrogen-dioxide No detection 2 No2 detection Performance Reduced graphene oxide |
| Entity: | Universitat Rovira i Virgili |
| Record's date: | 2025-04-30 |
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