Stabilized zirconia-based mixed potential type sensors utilizing MnNb2O6 sensing electrode for detection of low-concentration SO2

Liu, Fangmeng; Wang, Yinglin; Wang, Bin; Yang, Xue; Qingji, Wang; Liang, Xishuang; Sun, Peng; Chuai, Xiaohong; Wang, Yue; Wang, Qingji

doi:10.1016/j.snb.2016.07.145

Cited by 66 publications

(14 citation statements)

References 39 publications

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“…Most conventional solid electrolytes include either alkali-metal sulfates, [45,46] Ag-beta-Al 2 O 3 , [37] Na-beta-alumina Na 2 O-Al 2 O 3 , [25] NASICON (Na 3 Zr 2 Si 2 PO 12 ), [26] LISICON (Li 14 ZnGe 4 O 16 ), [47] or yttria-stabilized zirconia (YSZ). [24,48] Historically, the use of solid electrolytes for the detection of SO 2 and/or SO 3 was first suggested by Gauthier et al in 1977. [49,50] conductors with an auxiliary sensing electrode, where a thermodynamic equilibrium persists between the solid electrolyte (ion conductor), current collector (electron conductor), and gas phase.…”

Section: State-of-the-art Electrochemically Tracking Of Somentioning

confidence: 99%

“…Most conventional solid electrolytes include either alkali‐metal sulfates, [ 45,46 ] Ag–beta‐Al 2 O 3 , [ 37 ] Na–beta‐alumina Na 2 O–Al 2 O 3 , [ 25 ] NASICON (Na 3 Zr 2 Si 2 PO 12 ), [ 26 ] LISICON (Li 14 ZnGe 4 O 16 ), [ 47 ] or yttria‐stabilized zirconia (YSZ). [ 24,48 ] Historically, the use of solid electrolytes for the detection of SO 2 and/or SO 3 was first suggested by Gauthier et al. in 1977.…”

Section: Introductionmentioning

confidence: 99%

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Widening the Range of Trackable Environmental and Health Pollutants for Li‐Garnet‐Based Sensors

Balaish

Rupp

2021

Advanced Materials

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States, these contributors have led to an increased occurrence of natural disasters such as wild fires and hurricanes, which will continue to result in vast environmental climate-change-driven migration and resettling. As a consequence, disparities in terms of quality of life for humans will become much larger, demanding an affordable infrastructure that can locally measure changes in air pollution and minimize climate-change-induced socioeconomic conflicts. Shifts in the local temperature, humidity, and pollutant levels can lead to new diseases and their spread, which in turn requires a careful understanding and measurement of the interplay between these processes. With roughly 91% of the world's population living in urban areas breathing polluted air, [1] solid-state sensors at relatively low cost for the monitoring and control of environmental quality are imperative to preserve air quality, human health, and the environment. In this context, sulfur oxides, SO 2 and SO 3 , make up a sizeable portion of harmful pollutants, which are emitted from residential, manufacturing, and construction sectors through the combustion of sulfur-containing compounds in fossil fuels during oil and gas production and from natural processes such as volcanic eruptions and forest fires (Figure 1a). [4] Sulfur oxides may interact with the environment to cause toxicity, diseases, and environmental decay, playing a significant role in acid rain and having an adverse impact on forests, water, soil, corrosion, and human health (Figure 1b). [5][6][7][8] Moreover, considerable evidence indicates a link between SO 2 exposure and risk of missed abortion in the first trimester of pregnancy, alongside higher likelihood of stillbirth and birth defects due to maternal longterm exposure to pollutants. [9,10] The permissible exposure limit to SO 2 in the air and workplaces is 0.1-10 and 5 ppm, respectively, setting the upper limit for exposure without detrimental effects. [11,12] Conventionally, SO 2 concentrations are measured using one of two optical tracking technologies, IR spectroscopy, or UV absorbance spectroscopy, which are accurate and stable but rather expensive and dependent on bulky instruments (≈50 000 cm 3 ) and thus not suitable for real-time continuous monitoring required in miniaturized applications (Figure 1c). Alternative detection methods include gas chromatography and flame emission spectrometry, which are expensive, time consuming, and demand high power and are thus impractical for real-time monitoring and feedback control on a daily basis. [11,13] Classic chemical sensors integrated in phones, vehicles, and industrial plants monitor the levels of humidity or carbonaceous/oxygen species to track environmental changes. Current projections for the next two decades indicate the strong need to increase the ability of sensors to sense a wider range of chemicals for future electronics not only to continue monitoring environmental changes but also to ensure the health and safety of humans. To achieve this goal, more chemical sensing...

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Section: State-of-the-art Electrochemically Tracking Of Somentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Widening the Range of Trackable Environmental and Health Pollutants for Li‐Garnet‐Based Sensors

Balaish

Rupp

2021

Advanced Materials

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“…The prepared mixed-potential sensor was exposed to other test gases such as- NO 2 , Cl 2 , NH 3 , CO, NO, acetone, H 2 , CH 4 , ethanol and methanol for a gas selectivity test. The sensor remained selective enough to detect SO 2 gas even in very low amounts as illustrated in Figure 10 C. In another study, a zirconia-based solid state electrochemical SO 2 sensor had been demonstrated with MnNb 2 O 6 as sensing electrode [ 133 ]. Under very high operating temperature (700 °C), the sensor attained good sensitivity along with rapid and stable response-recovery of gas molecules.…”

Section: Recent Advances In So 2 Gas Detectionmentioning

confidence: 99%

Recent Advances in Electrochemical Sensors for Detecting Toxic Gases: NO2, SO2 and H2S

Khan

Rao

2019

Sensors

271

100

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Toxic gases, such as NOx, SOx, H2S and other S-containing gases, cause numerous harmful effects on human health even at very low gas concentrations. Reliable detection of various gases in low concentration is mandatory in the fields such as industrial plants, environmental monitoring, air quality assurance, automotive technologies and so on. In this paper, the recent advances in electrochemical sensors for toxic gas detections were reviewed and summarized with a focus on NO2, SO2 and H2S gas sensors. The recent progress of the detection of each of these toxic gases was categorized by the highly explored sensing materials over the past few decades. The important sensing performance parameters like sensitivity/response, response and recovery times at certain gas concentration and operating temperature for different sensor materials and structures have been summarized and tabulated to provide a thorough performance comparison. A novel metric, sensitivity per ppm/response time ratio has been calculated for each sensor in order to compare the overall sensing performance on the same reference. It is found that hybrid materials-based sensors exhibit the highest average ratio for NO2 gas sensing, whereas GaN and metal-oxide based sensors possess the highest ratio for SO2 and H2S gas sensing, respectively. Recently, significant research efforts have been made exploring new sensor materials, such as graphene and its derivatives, transition metal dichalcogenides (TMDs), GaN, metal-metal oxide nanostructures, solid electrolytes and organic materials to detect the above-mentioned toxic gases. In addition, the contemporary progress in SO2 gas sensors based on zeolite and paper and H2S gas sensors based on colorimetric and metal-organic framework (MOF) structures have also been reviewed. Finally, this work reviewed the recent first principle studies on the interaction between gas molecules and novel promising materials like arsenene, borophene, blue phosphorene, GeSe monolayer and germanene. The goal is to understand the surface interaction mechanism.

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“…Most conventional solid electrolytes include either alkali-metal sulfates, [27,28] Ag-beta-Al 2 O 3 , [29] Na-beta-alumina Na 2 O-Al 2 O 3 , [25] NASICON (Na 3 Zr 2 Si 2 PO 12 ), [26] LISICON (Li 14 ZnGe 4 O 16 ), [30] or yttria-stabilized zirconia (YSZ). [24,31] Historically, the use of solid electrolytes for the detection of SO 2 and/or SO 3 was first suggested by Gauthier et al in 1977. [32,33] As no solid electrolyte is based on the conduction of pure SO with an auxiliary sensing electrode, where a thermodynamic equilibrium persists between the solid electrolyte (ion conductor), current collector (electron conductor), and gas phase.…”

Section: State-of-the-art Electrochemically Tracking Of Somentioning

confidence: 99%

Widening the Range of Trackable Environmental and Health Pollutants for Li-Garnet-Based Sensors

Balaish¹,

Rupp²

2021

Meet. Abstr.

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Classic chemical sensors integrated in phones, vehicles, and industrial plants monitor the levels of humidity or carbonaceous/oxygen species to track environmental changes. Current projections for the next two decades indicate the strong need to increase the ability of sensors to sense a wider range of chemicals for future electronics not only to continue monitoring environmental changes but also to ensure the health and safety of humans. To achieve this goal, more chemical sensing principles and hardware must be developed. Here, we provide a proof-of-principle for the specific electrochemistry, material selection, and design of a Li-garnet Li 7 La 3 Zr 2 O 12 (LLZO)-based electrochemical sensor, targeting the highly corrosive environmental pollutant sulfur dioxide (SO 2 ). This work extends the prime use of LLZO as a battery component as well as the range of so far trackable pollutants for potential future sensor-noses. Novel composite sensing electrode designs using LLZO based on porous scaffold, employed to define a high number of reaction sites, allowed to successfully track SO 2 at the dangerous levels of 0-10 ppm with close-to-theoretical SO 2 sensitivity. The insights on the sensing electrochemistry, reactions involved and control over the interface sensing electrode/Li + electrolyte structures and phase stability provide first guidelines for future Ligarnet sensors to monitor with fast response a wider range of environmental pollutants and toxins.

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Stabilized zirconia-based mixed potential type sensors utilizing MnNb2O6 sensing electrode for detection of low-concentration SO2

Cited by 66 publications

References 39 publications

Widening the Range of Trackable Environmental and Health Pollutants for Li‐Garnet‐Based Sensors

Widening the Range of Trackable Environmental and Health Pollutants for Li‐Garnet‐Based Sensors

Recent Advances in Electrochemical Sensors for Detecting Toxic Gases: NO2, SO2 and H2S

Widening the Range of Trackable Environmental and Health Pollutants for Li-Garnet-Based Sensors

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