Ethanol Sensor by Using the Nickel Foil Electrode

Autor:	Tse-Chuan Chou, Chia-Chi Pang, Min-Hua Chen, Thong-Yueh Lin
Rok vydání:	2001
Předmět:	chemistry.chemical_compound Nickel Ethanol Linear relationship Chemistry Electrode Inorganic chemistry Electrochemistry chemistry.chemical_element Electrolyte FOIL method Analytical Chemistry
Zdroj:	Electroanalysis. 13:499-503
ISSN:	1521-4109 1040-0397
DOI:	10.1002/1521-4109(200104)13:6<499::aid-elan499>3.0.co;2-z
Popis:	A new ethanol sensor was developed by using nickel foil in alkaline solution as the electrode. The factors affecting the sensing and preparing of the electrode, such as pretreating time, pretreating HNO3 concentration, agitation rate and KOH concentration were explored. The optimal operating condition of preparing the electrode and sensing was 20 min pretreating time, 0.75 N pretreating HNO3 concentration, 560 mV set potential (vs. Ag/AgCl), 0.4 N KOH electrolyte concentration and 560 rpm agitation rate. The results revealed that the prepared electrode resulted in a linear relationship between response current and ethanol concentration in the range of 0 to 1000 ppm ethanol concentration and a 3 months shelf-life time at least. Additionally, the response time and sensitivity are 20 s and 3.761 µA/ppm, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::deedae4e8f7c2a8f228cc5b49ffbd13a https://doi.org/10.1002/1521-4109(200104)13:6<499::aid-elan499>3.0.co Zobrazit plný text záznamu Plný text