Analysis of Methanol Sensitivity on SnO2-ZnO Nanocomposite

Autor:	Enobong Bassey, Philip Sallis, Krishnamachar Prasad
Rok vydání:	2016
Předmět:	chemistry.chemical_compound Materials science Nanocomposite chemistry Chemical engineering Tin dioxide Nanoparticle chemistry.chemical_element Sensitivity (control systems) Methanol Zinc Thin film Selectivity
Zdroj:	Characterization of Minerals, Metals, and Materials 2016 ISBN: 9783319486239 Characterization of Minerals, Metals, and Materials 2016
DOI:	10.1007/978-3-319-48210-1_35
Popis:	This research reports on the sensing behavior of a nanocomposite of tin dioxide (SnO2) and zinc oxide (ZnO). SnO2-ZnO nanocomposites were fabricated into sensor devices by the radio frequency sputtering method, and used for the characterization of the sensitivity behavior of methanol vapor. The sensor devices were subjected to methanol concentration of 200 ppm at operating temperatures of 150, 250 and 350 °C. A fractional difference model was used to normalize the sensor response, and determine the sensitivity of methanol on the sensor. Response analysis of the SnO2-ZnO sensors to the methanol was most sensitive at 350 °C, followed by 250 and 150 °C. Supported by the morphology (FE-SEM, AFM) analyses of the thin films, the sensitivity behavior confirmed that the nanoparticles of coupled SnO2 and ZnO nanocomposites can promote the charge transportation, and be used to fine-tune the sensitivity of methanol and sensor selectivity to a desired target gas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7889a846e476d31337abcb377dc36e9b https://doi.org/10.1007/978-3-319-48210-1_35 Zobrazit plný text záznamu