ArticleSensors (Basel, Switzerland)2022
Development of a Conductometric Sensor Based on Al,Ca-Doped ZnO for the Detection of Formaldehyde.
Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 25 citations in OpenAlex.
- Green synthesis and magnetothermal performance of ZnRSC advances · 2026Article
- Laboratory Cross-Sensitivity Evaluation of Low-Cost Electrochemical Formaldehyde Sensors.Sensors (Basel, Switzerland) · 2025Article
- Ammonia gas sensors based on undoped and Ca-doped ZnO nanoparticles.RSC advances · 2024Article
- Facile Mesoporous Hollow Silica Synthesis for Formaldehyde Adsorption.International journal of molecular sciences · 2023Article
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Authors and funding
2 authors at 1 institution in 1 country.
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Abstract
In the present study, the development of a conductometric gas sensor based on Al,Ca-doped zinc oxide composite which is finalized to the detection of formaldehyde (HCHO) at a low concentration in air is investigated. The electrical and sensing properties of the composite based on ZnO doped with different loadings of Al and/or Ca (from 0 up to 5 at%) were evaluated. The gas-sensing mechanism of Al,Ca-doped zinc oxide nanocomposite-based sensors was also discussed. The optimized 3%Al,3%Ca-ZnO sensor displayed a formaldehyde response of 3.5 (@ 4 ppm HCHO/air) and an experimental low detection limit of 125 ppb HCHO/air, at the operating temperature of 400 °C. The sensor was also shown to be selective to HCHO with respect to many interferent indoor gases, but NO
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