A PVP-Based Quartz Crystal Microbalance Sensor for H₂S Detection

Abstract:

Hydrogen sulfide is a typical toxic, inflammable gas. The detection of H₂S is crucial in the areas of oil, natural gas and so on. However, studies on H₂S gas sensors at room temperature were seldom reported. In this study, Quartz crystal microbalance (QCM) sensors have been utilized, and PVP film were prepared on the QCM by airbrush method with different airbrush volume for H₂S detection. The results showed that the PVP film with airbrush volume 0.2ml exhibited a better sensing response to H₂S gas. Besides, sensitive characteristics parameters, i.e. selectivity, stability, linearity and sensitivity of prepared sensors were studied for comparison. The relative sensing mechanism associated with SEM pictures was studied as well.

• Periodical: Applied Mechanics and Materials (Volumes 651-653)
• Pages: 191-194
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.651-653.191
• Online since: September 2014
• Authors: Mei Wu*, Guang Zhong Xie, Yong Zhou, Hui Ling Tai
• Keywords: Frequency Shift, Gas Sensor, Hydrogen Sulfide, PVP, QCM

References

[1] J. Sarfraza, A. Määttänen et al. Printed copper acetate based H2S sensor on paper substrate, Sensors and Actuators B: Chemical, 2012, 173: 868-873.

DOI: 10.1016/j.snb.2012.08.008

[2] Barrett E P S, Georgiades G C. The mechanism of operation of WO3-based H2S sensors, Sensors and Actuators B, 1990, 1: 116-120.

DOI: 10.1016/0925-4005(90)80184-2

[3] Ando M, Suto S, Suzuki T, Tsuchida T, Nakayama C, Miura N, Yamazoe N. Hydrogen sulfide sensing characteristics of tin oxide sol derived thin films, J Ceram Soc Jpn, 1996, 104: 409-414.

DOI: 10.2109/jcersj.104.409

[4] Natale C D, Davide F, Faflia G, Nelli P. Study of the effect of sensor operating temperature on SnO2 based sensor-array performance, Sensors and Actuators B, 1995, 23: 187-191.

DOI: 10.1016/0925-4005(94)01274-l

[5] Kong X H, Li Y D. High sensitivity of CuO modified SnO2 nanoribbons to H2S at room temperature, Sensors and Actuators B, 2005, 105: 449-453.

DOI: 10.1016/j.snb.2004.07.001

[6] Hu Y, Zhou X H, et al, Sensing properties of CuO-ZnO heterojunction gas sensors, Mat. Sci. Eng. B, 2003, 99: 4-43.

[7] Agbor N E, Petty M C, Monkman A P. Polyaniline thin films for gas sensing, Sensors and Actuators B, 1995, 28: 173-179.

DOI: 10.1016/0925-4005(95)01725-9

[8] Geng L N, Wang S R, Li P, Zhao Y Q, Zhang S M, Wu S H. Preparation and gas sensitivity study of polypyrrole/tin oxide hybrid material, Chin J Inorg Chem, 2005, 21: 977-981.

[9] Mahendra D. Shirsat, Mangesh A. Bangar, et al. Polyaniline nanowires-gold nanoparticles hybrid network based chemiresistive hydrogen sulfide sensor, Applied physics letters, 2009, 94: 1-3.

DOI: 10.1063/1.3070237

[10] V. Georgieca, P. Stefcheva et al. Detection of NH3 by quartz crystal microbalance with SnxNiy coating, Journal of Optoelectronics and Advanced Materlal, 2010, 12: 1957-(1961).