Nanocomposite sensors of propylene glycol, dimethylformamide and formaldehyde vapors

被引：21

作者：

Adamyan, Zaven ^{[1
]}

Sayunts, Artak ^{[1
]}

Aroutiounian, Vladimir ^{[1
]}

Khachaturyan, Emma ^{[1
]}

Vrnata, Martin ^{[2
]}

Fitl, Premysl ^{[2
]}

Vlcek, Jan ^{[2
]}

机构：

[1] Yerevan State Univ, Ctr Semicond Devices & Nanotechnol, Dept Phys Semicond & Microelect, 1 A Manoukian, Yerevan 0025, Armenia

[2] Univ Chem & Technol, Dept Phys & Measurement Technol, Tech 5, Prague 16628 6, Czech Republic

来源：

JOURNAL OF SENSORS AND SENSOR SYSTEMS | 2018年 / 7卷 / 01期

关键词：

D O I：

10.5194/jsss-7-31-2018

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The results of research works related to the study of thick-film multiwall carbon nanotube-tin oxide nanocomposite sensors of propylene glycol (PG), dimethylformamide (DMF) and formaldehyde (FA) vapors are presented in this paper. These sensors were derived using hydrothermal synthesis and sol-gel methods. Investigations of response-recovery characteristics in the 50-300 degrees C operating temperature range reveal that the optimal operating temperature for PG, DMF and FA vapor sensors, taking into account both high response and acceptable response and recovery times are about 200 and 220 degrees C, respectively. The dependence of the sensor response on gas concentration is linear in all cases. Minimal propylene glycol, dimethylformamide and formaldehyde gas concentrations, where the perceptible signal was noticed, were 13, 5 and 115 ppm, respectively.

引用

页码：31 / 41

页数：11

共 42 条

[1] Sol-gel derived thin-film semiconductor hydrogen gas sensor [J].