The effect of humidity on tin-oxide thick-film gas sensors in the presence of reducing and combustible gases

Vlachos, D. S.; Skafidas, P.D.; Avaritsiotis, J.N.

doi:10.1016/0925-4005(95)85105-4

Cited by 83 publications

(36 citation statements)

References 7 publications

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“…As humidity is known to disturb pollutants measurements using low temperature operating sensors, we have evaluated the interfering effect of humidity on NO 2 detection at 30 • C. The responses showed an approximate linear relationship with relative humidity. The active site on the surface of nanorods was covered gradually by water vapor [41], leading to a decrease in the response to NO 2 . However, a certain amount of physisorbed water on the surface could also be decomposed by the photo-generated charges [42].…”

Section: Gas Response and I-v Properties Of Zno:co Nanorodsmentioning

confidence: 99%

Synthesis and oxygen vacancy related NO2 gas sensing properties of ZnO:Co nanorods arrays gown by a hydrothermal method

Zou

Liang

Xue

2015

Applied Surface Science

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Section: Gas Response and I-v Properties Of Zno:co Nanorodsmentioning

confidence: 99%

Synthesis and oxygen vacancy related NO2 gas sensing properties of ZnO:Co nanorods arrays gown by a hydrothermal method

Zou

Liang

Xue

2015

Applied Surface Science

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“…1,3,5 For example, varying levels of ambient humidity usually alter the sensing signals, leading to a decrease in sensitivity and selectivity towards the desired compound(s). 12,23 The implementation of the sensors should be simple and cost-effective enough to be economically viable for real-world applications. Sensors with electronic and electro-acoustic transduction mechanisms, such as chemically sensitive resistors [24][25][26][27][28][29][30][31][32][33] and quartz-crystal microbalance (QCM) sensors [34][35][36] are among the most attractive and widespread elements for sensing applications that involve the detection and classification of volatile organic compounds (VOCs) in the gas phase.…”

Section: Introductionmentioning

confidence: 99%

Sensor Arrays Based on Polycyclic Aromatic Hydrocarbons: Chemiresistors versus Quartz-Crystal Microbalance

Bachar

Liberman

Muallem

et al. 2013

ACS Appl. Mater. Interfaces

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Arrays of broadly cross-reactive sensors are key elements of smart, self-training sensing systems. Chemically sensitive resistors and quartz-crystal microbalance (QCM) sensors are attractive for sensing applications that involve the detection and classification of volatile organic compounds (VOCs) in the gas phase. Polycyclic aromatic hydrocarbon (PAH) derivatives as sensing materials can provide good sensitivity and robust selectivity towards different polar and nonpolar VOCs, while being quite tolerant to large humidity variations.Here, we present a comparative study of chemiresistor and QCM arrays based on a set of custom-designed PAH derivatives having either purely nonpolar coronas or alternating nonpolar and strongly polar side chain termination. The arrays were exposed to various concentrations of representative polar and nonpolar VOCs under extremely varying humidity conditions (5-80% RH). The sensor arrays' classification ability of VOC polarity, chemical class and compound separation was explained in terms of the sensing characteristics of the constituent sensors and their interaction with the VOCs. The results presented here contribute to the development of novel versatile and cost-effective real-world VOC sensing platforms.

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“…The project emphasizes solving technical problems such as MEMS sensor design, fabrication, reliability, signal treatment, and system integration. In this project, we have improved the application and production of MEMS sensors for acceleration, pressure, liquid, dip angle, LNG, and LPG [15,16]. In addition, the research terms have developed a number of MEMS gas sensors such as for chlorine, aviation kerosene, gasoline, alkynes, alkenes, hydrocarbon, ammonia, ketene, alcohol, benzene, and glacial acetic acid.…”

Section: Sensor Networkmentioning

confidence: 99%

A Hazardous Chemical-Oriented Monitoring and Tracking System Based on Sensor Network

Tan

Zhang

et al. 2014

International Journal of Distributed Sensor Networks

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We present a monitoring and tracking system for storage and transportation of chemicals. In accord with the standards and regulations of transport vehicles for hazardous chemicals, an overall structure-function diagram for vehicle monitoring and a prewarning system were proposed by integrating various technologies such as computer modeling, control theory, multisensor data fusion, communication science, space positioning, and safety management science. Transportation experiments performed on sea and land demonstrated that the monitoring and tracking system is feasible with high precision, in which an amount of system state data was collected by different kinds of sensors group. Once sensor-derived signals were detected, the signals would be fused and transmitted to the master monitor center via a high precision and large-scale wireless communication network. The designed tracking and localizing system displayed good monitoring ability and adequately satisfied technical requirements.

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The effect of humidity on tin-oxide thick-film gas sensors in the presence of reducing and combustible gases

Cited by 83 publications

References 7 publications

Synthesis and oxygen vacancy related NO2 gas sensing properties of ZnO:Co nanorods arrays gown by a hydrothermal method

Synthesis and oxygen vacancy related NO2 gas sensing properties of ZnO:Co nanorods arrays gown by a hydrothermal method

Sensor Arrays Based on Polycyclic Aromatic Hydrocarbons: Chemiresistors versus Quartz-Crystal Microbalance

A Hazardous Chemical-Oriented Monitoring and Tracking System Based on Sensor Network

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