Correlation of sensing behavior of mixed potential sensors with chemical and electrochemical properties of electrodes

Szabo, Nicholas F; Dutta, Prabir K.

doi:10.1016/j.ssi.2004.04.019

Cited by 98 publications

(64 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 1996 and 1997, Sorita and Kawano have also reported the YSZ-based sensor using various mixed oxides (e.g., perovskite and spinel) as SE coated with an Al 2 O 3 (+Pt) catalyst layer for selective detection of CO (or H 2 ) [49,50]. Since then, substantial development of this type of gas sensors has been achieved early in this century by many leading research groups in the world [51][52][53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

A review of mixed-potential type zirconia-based gas sensors

Miura

Sato

Anggraini

et al. 2014

Ionics

295

175

View full text Add to dashboard Cite

A robust and reliable gas sensing device is considered as a convenient and practical solution for gas concentration monitoring that has become a mandatory requirement in different field of applications. For in situ hazardous gases detection, a mixed-potential type gas sensor has been regarded as a promising solid-state gas sensor. For the past three decades, there has been a significant progress in achieving high performance in mixed-potential type sensors. Therefore, this review is focused on reporting the development of mixedpotential type gas sensors with combined yttria-stabilized zirconia (YSZ) as the base solid electrolyte material and various classes of electrode materials for their potential utilization as a high-performance sensing electrode. The underlying sensing mechanism of a mixed-potential type YSZ-based sensor is elaborated here in detail. Transformation in design and configuration of this type of sensor is also covered in this report. In addition, recent progresses on mixed-potential type gas sensors development for detection of several target gases, such as carbon monoxide, hydrocarbons, nitrogen oxides, hydrogen, and ammonia, are reviewed. Strategies to improve the sensing characteristic, particularly gas sensitivity and selectivity, are also reported. Based on the understanding of the fundamental sensing mechanism and the requirements for high-performance gas sensors, challenges and future trends for this type of gas sensor development are discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

A review of mixed-potential type zirconia-based gas sensors

Miura

Sato

Anggraini

et al. 2014

Ionics

295

175

View full text Add to dashboard Cite

show abstract

“…Another transition metal oxide used as the electrode material in NO x sensors is Cr 2 O 3 [275][276][277][278][279][280][281]. Other binary oxides used for NO x sensors include ZnO [264], V 2 O 5 [282], and SnO 2 [278,279], which has also been used for CO sensors [283].…”

Section: Electrocatalytic Electrodesmentioning

confidence: 99%

“…LaFeO 3 , which has been used as a semiconductor-type gas sensor [315,316], has also been used as an electrode with YSZ [255,263,317] or NASICON [317,318] electrolytes for potentiometric NO x sensors. Strontium (i.e., (La,Sr)FeO 3 [255,256,284]) or strontium and cobalt (i.e., (La, Sr)(Co,Fe)O 3 [275,280,309]) have been added to LaFeO 3 to improve electrode performance. (La,Ca)MnO 3 doped with either cobalt or nickel on the manganese site has been used as the electrode for NO x sensors [319].…”

Section: Electrocatalytic Electrodesmentioning

confidence: 99%

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Fergus

2009

Solid State Electrochemistry I

View full text Add to dashboard Cite

Solid electrolytes are well suited for use in chemical sensors for high-temperature applications. The first such sensors followed from the use of solid electrolytes for thermodynamic measurements, and are based on galvanic cells, for which the open circuit voltage is related to the concentration of the mobile ionic species, or to another target species through equilibration at the electrode surface. However, sensors can also be based on nonequilibrium, but steady-state, potentials established between electrochemical reactions at the electrode. Another approach is to use the current passing through the electrolyte, rather than the voltage across the electrolyte, as the sensor signal. In this chapter we first describe the different methods for using solid electrolytes in chemical sensors, and then discuss some of the materials challenges and example applications. IntroductionMore than 50 years ago, Kiukkola and Wagner [1] demonstrated that solid electrolytes couldbeusedingalvaniccellstomeasurethethermodynamicpropertiesofoxides.Those pioneering studies subsequently led to the more practical application of solid electrolytes in chemical sensors. The ionic conduction in solid electrolytes is thermally activated and thus its rate increases with increasing temperature; consequently, solid electrolytes are well suited for high-temperature applications. On the other hand, such temperature dependencealsomeansthatsensorsbasedonsolidelectrolytescanrespondsluggishlyor may be inoperable at low temperatures. However, one of the advantages of solid-state devices, such as those based on solid electrolytes, is that they can be miniaturized [2,3]. Decreasingthedevicedimensionsreducesdiffusionlengths,whichinturndecreasesthe response time and thus also the minimum operating temperature.Ionic conducting solids can be used in a variety of different types of sensor [4][5][6][7][8][9][10][11][12]. Solids forwhichthe ionicconductivity is much largerthanthe electronic conductivity can Solid State Electrochemistry I: Fundamentals, Materials and their Applications. Edited by Vladislav V. Kharton

show abstract

“…Thus, there is a need for inexpensive and portable sensors in various fields. Although semiconductor gas sensors as well as electrochemical sensors have been developed to determine the concentration of NO, (3)(4)(5)(6)(7) in general, they are poor at distinguishing NO from NO 2 .…”

Section: Introductionmentioning

confidence: 99%

Nitric Oxide Gas Sensors Using Multilayered Thin Film with Interspaces

2018

Sensors and Materials

View full text Add to dashboard Cite

Nitric oxide (NO) is an air pollutant known to adversely affect the environment, humans, and other living organisms. Low-level NO gas is also created by human bodies and emitted as a component of exhaled breath and skin gas under some health conditions. Therefore, there is a strong demand for the monitoring of NO gas concentration. In this paper, we present novel NO gas sensors that have been developed using multilayered WO 3 -based thin films with interspaces. Ag doping into a WO 3 thin film is effective in increasing the sensitivity to NO. Multilayered thin-film sensors with interspaces successfully enhance both sensitivity and selectivity to NO. The developed sensor with quadruple-layered sensing films can detect as low as 0.5 ppm NO gas with good selectivity at an operating temperature of 290 ℃. The response and recovery times are 81 and 138 s, respectively, for the double-layered sensor, while its sensitivity is lower than that of the quadruple-layered sensor. Thus, the sensors are promising as a portable and inexpensive NO sensing device in various application fields such as environmental monitoring and health diagnosis.

show abstract

Correlation of sensing behavior of mixed potential sensors with chemical and electrochemical properties of electrodes

Cited by 98 publications

References 41 publications

A review of mixed-potential type zirconia-based gas sensors

A review of mixed-potential type zirconia-based gas sensors

Electrochemical Sensors: Fundamentals, Key Materials, and Applications

Nitric Oxide Gas Sensors Using Multilayered Thin Film with Interspaces

Contact Info

Product

Resources

About