ZnO Nanostructures to Detect Low Concentrations of Indoor Pollutants. (2015)

• Record Type: Journal Article
• Authors: Gonzalez-Chavarri, J.; Castro-Hurtado, I.; Castaño, E.; Mandayo, G.G.
• Is Part Of: Procedia engineering. Volume 120(2015)
• Page Start: 711
• Page End: 716
• Publication Date: 2015
• Subjects: VOC -- ZnO -- nanostructures -- Vapour Solid -- benzene -- carbon monoxide -- formaldehyde -- nitrogen dioxide -- indoor air quality; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.08.768
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: The aim of this work is to develop an easy-to-manufacture and highly-sensitive conductometric microsensor for indoor air quality (IAQ) monitoring. The sensing device consists on ZnO nanostructures on Pt interdigitated electrodes and a Pt heater surrounding the sensing layer, fabricated on one side of a 2.5x2.5 mm 2 alumina substrate. ZnO nanostructures are grown in-situ over the electrodes, using the Vapour-Solid (VS) approach. The samples were tested under different concentrations of benzene, formaldehyde, carbon monoxide and nitrogen dioxide, showing significant response to low concentrations of the four gases.