A QCM-based NO2 gas detector using morpholine-functional cross-linked copolymer coatings

被引：31

作者：

Matsuguchi, M ^{[1
]}

Kadowaki, Y ^{[1
]}

Tanaka, M ^{[1
]}

机构：

[1] Ehime Univ, Dept Appl Chem, Matsuyama, Ehime 7908577, Japan

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2005年 / 108卷 / 1-2期

关键词：

NO2; monitoring; gas sensor; QCM; cross-linked amino-functional copolymer; air pollution;

D O I：

10.1016/j.snb.2004.11.044

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Piezoelectric devices coated with cross-linked poly(styrene-co-chloromethyl styrene) reacted with morpholine were fabricated to develop a simple system that monitors NO2 gas in air. The introduction of NO2 gas irreversibly decreased the oscillation frequencies of all the devices tested, indicating that these devices can be used for one-shot detection of NO2 concentrations in air. The NO2 sensitivity was defined as hourly changes in frequency. The use of the cross-linked structure clearly increased sensitivity. The largest sensitivity obtained in this study was 1200 Hz/h for 50 ppm, of NO2, which demonstrated a sub-ppm level of NO2 detection. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：572 / 575

页数：4

共 6 条

[1] THERMALLY REVERSIBLE POLYMERIC SORBENTS FOR ACID GASES .4. AFFINITY TUNING FOR THE SELECTIVE DRY SORPTION OF NOX [J].

DIAF, A ;

BECKMAN, EJ .

REACTIVE POLYMERS, 1995, 25 (01) :89-96

[2] Selective polypyrrole electrodes for quartz microbalances:: NO2 and gas flux sensitivities [J].

Henkel, K ;

Oprea, A ;

Paloumpa, I ;

Appel, G ;

Schmeisser, D ;

Kamieth, P .

SENSORS AND ACTUATORS B-CHEMICAL, 2001, 76 (1-3) :124-129

[3] Monitoring of NO2 gas in air using piezoelectric crystals coated with amino-functional copolymers [J].

Matsuguchi, M ;

Tanaka, M .

ELECTROCHEMISTRY, 2003, 71 (06) :417-419

[4] Surface acoustic wave NO2 sensing using attenuation as the measured quantity [J].

Rügemer, A ;

Reiss, S ;

Geyer, A ;

von Schickfus, M ;

Hunklinger, S .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 56 (1-2) :45-49

[5] VERWENDUNG VON SCHWINGQUARZEN ZUR WAGUNG DUNNER SCHICHTEN UND ZUR MIKROWAGUNG [J].

SAUERBREY, G .

ZEITSCHRIFT FUR PHYSIK, 1959, 155 (02) :206-222

[6] Gas sorption and permeation of glassy polymers with microvoids [J].

Tsujita, Y .

PROGRESS IN POLYMER SCIENCE, 2003, 28 (09) :1377-1401

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