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Which nanoparticles or alloy nanoparticles can be used for selectively detecting CO2 gas?

Lanthanum oxide

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Pd-doped ZnO nanoparticles and Ni-doped ZnO nanoparticles have shown promising capabilities for selectively detecting CO2 gas. The Pd-doped ZnO nanoparticles were optimized using a dual activation technique, enhancing their reliability and selectivity for specific gas detection . On the other hand, Ni-doped ZnO nanoparticles exhibited optimal characteristics for CO2 detection due to high surface area and abundant oxygen vacancies resulting from the Ni incorporation, leading to a high sensing response and sensitivity towards CO2 gas . These nanomaterials have demonstrated significant potential in the field of gas sensing, particularly for detecting carbon dioxide gas with high selectivity and sensitivity.

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Open access•Journal Article•DOI Palladium doped tungsten oxide nanoparticle nanocomposite for sensitive detection of CO2 and LPG gases Nouran Younes, Abd El-Hady B. Kashyout, Kamel R. Shoueir, Maged El-Kemary - Show less +3 more 01 Jun 2022-Journal of materials research and technology 4 Citations	Palladium-doped tungsten oxide (WO3) nanoparticles can be utilized for selectively detecting CO2 gas with high sensitivity, as demonstrated in the study.
Open access•Journal Article•DOI Highly selective CO2 sensing response of lanthanum oxide nanoparticle electrodes at ambient temperature Amutha Eswaran, Rajaduraipandian Subramaniam, Gurusamy Annadurai - Show less +2 more 07 Jun 2023-Nanoscale advances	Lanthanum oxide nanoparticles (La2O3 NPs) can be utilized for highly selective CO2 gas detection due to their exceptional sensitivity and selectivity at ambient temperature.
Journal Article•DOI Rapid Joule Heating Synthesis of Oxide-Socketed High-Entropy Alloy Nanoparticles as CO2 Conversion Catalysts. Jaewan Ahn, Seyeon Park, D. Oh, Y. Y. Lim, Jong Seok Nam, Jihan Kim, WooChul Jung, Il-Doo Kim - Show less +7 more 25 May 2023-ACS Nano	High-entropy alloy nanoparticles (HEA-NPs) with oxide overlayer can be utilized as catalysts for CO2 conversion, achieving >50% CO2 conversion with >97% selectivity to CO.
Journal Article•DOI Carbon Dioxide Detectors based on Al‐ and Ni‐Doped ZnO R. Lozano-Rosas, A. G. Hernandez, María P. Elizalde-González, M.J. Robles-Águila, Venkata Krishna Karthik Tangirala - Show less +4 more 03 Aug 2022-Physica Status Solidi (a)	Nickel (Ni) and aluminum (Al)‐doped ZnO nanoparticles are suitable for selectively detecting CO2 gas due to their optimal characteristics, especially the Ni-doped ZnO samples.
Proceedings Article•DOI Design and fabrication of a selective sensor for the measurement of CO gas 30 Oct 2022	Pd-doped ZnO nanoparticles were utilized for selectively detecting CO gas in the sensor fabrication process, showcasing the effectiveness of dual activation technique for gas detection.

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