Selective NO2 Detection of CaCu3Ti4O12 Ceramic Prepared by the Sol-Gel Technique and DRIFT Measurements to Elucidate the Gas Sensing Mechanism
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. XRD Characterization
3.2. SEM Results
3.3. XPS Results
3.4. Gas Sensing Response
3.5. DRIFTS Measurements
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sample | CCTO | ||
---|---|---|---|
Element | Binding Energy 1 | Area 2 | Oxidation State 3 |
Ca | 346.4 | 79.1% | Ca2+ |
347.2 | 20.9% | CaTiO3 | |
Cu | 932.5 | 8.0% | Cu+ |
934.1 | 92.0% | Cu2+ | |
Ti | 457.9 | 23.3% | Ti3+ |
458.6 | 76.7% | Ti4+ | |
O | 529.8 | 89.2% | O2− |
532.0 | 10.8% |
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Espinoza-González, R.; Caamaño, J.; Castillo, X.; Orlandi, M.O.; Felix, A.A.; Flores, M.; Blanco, A.; Castro-Castillo, C.; Gracia, F. Selective NO2 Detection of CaCu3Ti4O12 Ceramic Prepared by the Sol-Gel Technique and DRIFT Measurements to Elucidate the Gas Sensing Mechanism. Materials 2023, 16, 3390. https://doi.org/10.3390/ma16093390
Espinoza-González R, Caamaño J, Castillo X, Orlandi MO, Felix AA, Flores M, Blanco A, Castro-Castillo C, Gracia F. Selective NO2 Detection of CaCu3Ti4O12 Ceramic Prepared by the Sol-Gel Technique and DRIFT Measurements to Elucidate the Gas Sensing Mechanism. Materials. 2023; 16(9):3390. https://doi.org/10.3390/ma16093390
Chicago/Turabian StyleEspinoza-González, Rodrigo, Josefa Caamaño, Ximena Castillo, Marcelo O. Orlandi, Anderson A. Felix, Marcos Flores, Adriana Blanco, Carmen Castro-Castillo, and Francisco Gracia. 2023. "Selective NO2 Detection of CaCu3Ti4O12 Ceramic Prepared by the Sol-Gel Technique and DRIFT Measurements to Elucidate the Gas Sensing Mechanism" Materials 16, no. 9: 3390. https://doi.org/10.3390/ma16093390