Development of High-Performance Ethanol Gas Sensors Based on La2O3 Nanoparticles-Embedded Porous SnO2 Nanofibers
Porous pure SnO<sub>2</sub> nanofibers (NFs) and La<sub>2</sub>O<sub>3</sub> nanoparticles (NPs)-embedded porous SnO<sub>2</sub> NFs were successfully synthesized via electrospinning followed by calcination. These materials were systematically evaluated as gas-sensing elements in metal-oxide-semiconductor (MOS) sensors. The La<sub>2</sub>O<sub>3</sub> NPs embedded in porous SnO<sub>2</sub> NFs demonstrated superior gas-sensing performance compared to pure SnO<sub>2</sub> NFs. Specifically, the incorporation of La<sub>2</sub>O<sub>3</sub> resulted in a 12-fold enhancement in gas-sensing response towards ethanol, significantly improving both sensitivity and selectivity by tuning the carrier concentration and modifying oxygen deficiencies and chemisorbed oxygen levels. Thus, La<sub>2</sub>O<sub>3</sub> NPs embedded in SnO<sub>2</sub> NFs present a promising strategy for the development of high-performance ethanol gas sensors.
Authors
- Zhiyong Chen (ORCID: https://orcid.org/0000-0001-9478-3357)
- Muhammad Hilal (ORCID: https://orcid.org/0000-0003-2216-8069)
- Yunhao Cui (ORCID: https://orcid.org/0000-0002-6538-6739)
- Zhicheng Cai (ORCID: https://orcid.org/0000-0002-1430-1985)
- Jun‐Hyun Kim (ORCID: https://orcid.org/0000-0001-8145-6269)
- Jian Hou (ORCID: https://orcid.org/0000-0002-4950-7676)
- Hyojung Kim (ORCID: https://orcid.org/0009-0002-7120-2243)
- Gen Li (ORCID: https://orcid.org/0000-0002-6883-2407)
Institutions
- Henan University of Science and Technology (CN)
- Sejong University (KR)
- Chengdu University (CN)
- Illinois State University (US)
- Luoyang Institute of Science and Technology (CN)
Publication Details
- Journal
- Sensors
- Published
- 2024-10-24
- DOI
- https://doi.org/10.3390/s24216839
- Citations
- 30
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 6.26