BANNOV, Alexander, Jan PRÁŠEK, Ondřej JAŠEK, Aleksandr SHIBAEV and Lenka ZAJÍČKOVÁ. Investigation of ammonia gas sensing properties of graphite oxide. Online. In Dr. István Bársony, Dr. Zsolt Zolnai, Dr. Gábor Battistig. PROCEEDINGS OF THE 30TH ANNIVERSARY EUROSENSORS CONFERENCE - EUROSENSORS 2016. 1st ed. Amsterdam, Netherlands: Elsevier Science, 2016, p. 231-234. ISSN 1877-7058. Available from: https://dx.doi.org/10.1016/j.proeng.2016.11.169.
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Basic information
Original name Investigation of ammonia gas sensing properties of graphite oxide
Name in Czech Studium detekce amoniaku na grafen oxidu
Authors BANNOV, Alexander (643 Russian Federation, belonging to the institution), Jan PRÁŠEK (203 Czech Republic), Ondřej JAŠEK (203 Czech Republic, guarantor, belonging to the institution), Aleksandr SHIBAEV (643 Russian Federation) and Lenka ZAJÍČKOVÁ (203 Czech Republic, belonging to the institution).
Edition 1. vyd. Amsterdam, Netherlands, PROCEEDINGS OF THE 30TH ANNIVERSARY EUROSENSORS CONFERENCE - EUROSENSORS 2016, p. 231-234, 4 pp. 2016.
Publisher Elsevier Science
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10305 Fluids and plasma physics
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
Publication form electronic version available online
WWW web nakladatele
RIV identification code RIV/00216224:14310/16:00093456
Organization unit Faculty of Science
ISSN 1877-7058
Doi http://dx.doi.org/10.1016/j.proeng.2016.11.169
UT WoS 000391641300055
Keywords (in Czech) senor plynů; amoniak; grafit oxid; odezva; vlhkost; selektivita
Keywords in English Gas sensor; ammonia; graphite oxide; response; humidity; cross-sensitivity
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Ing. Andrea Mikešková, učo 137293. Changed: 20/4/2017 10:35.
Abstract
In this paper a graphite oxide is investigated as a possible sensing layer of room temperature ammonia chemiresistive gas sensor. The sensing properties were tested in a wide range of ammonia concentrations in air (10-1000 ppm) and under different humidity levels (3-65 %). It was concluded that the graphite oxide based sensor possessed high response to NH3 in synthetic air (Delta R/R-0 ranged from 2.5 to 7.4 % for concentrations of 100-500 ppm and 3 % relative humidity) with negligible cross-sensitivity towards H-2 and CH4. It was determined that the sensor recovery rate was improved with ammonia concentration growth. Increasing of ambient relative humidity led to increase of sensor response. The highest response of 22.2 % for 100 ppm of ammonia was achieved at 65 % relative humidity level.
Abstract (in Czech)
V tomto článku je zkoumán grafit oxid jako chemorezistivní senzor amoniaku. Senzor byl testován v rozsahu koncentrací 100 -1000 ppm a relativní vlhkost se měnila v rozsahu 3-65 %. Senzor vykazoval vysokou odezvu 2,5 až 7,4 % při koncentracích 100-500 ppm a 3 % vlhkosti a velmi nízkou odezvu vůči H2 a CH4. Regenerace senzoru se zlepšovala s vyšší koncentrací NH3 a odezva rostla s růstem relativní vlhkosti. Nejvyšší odezva 22.2 % byla naměřena pro 100 ppm při relativní vlhkosti 65 procent.
Links
LO1411, research and development projectName: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)
Investor: Ministry of Education, Youth and Sports of the CR
LQ1601, research and development projectName: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
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