Mixed potential type ammonia sensor using Fe-substituted LaCoO3 sensing electrode prepared by flame spray pyrolysis

Xiao, Bang; Jiao, Anqi; Zhang, Yiran; Yang, Lin; Zhao, Xuteng; Wu, Chunping; Guo, Dongdong; Zhan, Reggie; Lin, He

doi:10.1016/j.snb.2021.130470

Cited by 21 publications

(20 citation statements)

References 42 publications

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“…The difference in the sensitivity of the composite ceramic to ethanol gas indicates that the sample is able to distinguish different ethanol gas concentrations. Even though the precursor sources are different with another research, the fabricated MZF composite has a compete performance compared with the use of high purity precursors of Fe-based [18], [27]. Otherwise, even this work had a lower sensitivity than our previous work [32], this because difference of treatment on the temperature of firing the film.…”

Section: Sensing Behavior As An Indicator For Gas Sensormentioning

confidence: 68%

“…The best working performance of the sample is at 360 o C. At that temperature, the sample shows significant sensing behavior, in which its responses are approximately 42.25% (100 ppm), 47.21% (200 ppm), and 48.24% (300 ppm), respectively (see Figure 4). This operating temperature is lower another work of Fe-based gas sensor [27]. The working temperature is affected by the thickness of the sample [28], [29], which is shown in Figure 6b).…”

Section: Sensing Behavior As An Indicator For Gas Sensormentioning

confidence: 89%

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Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

Aliah¹,

Setiawan²,

Iman³

et al. 2023

Preprint

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This report aimed to know the performance of local mineral-based composite ceramic. The materials used consist of Indonesian local minerals, which are jarosite and manganite minerals as sources of oxide iron and Mangan. The materials were synthesized using the precipitation method, whereas composite ceramic was fabricated using a screen printing method and fired at 600 oC using a furnace. The results of the characterizations indicate that the sample forms three phases on diffraction peaks. The differences in the resistance values in ambient and ethanol environments indicate that the sample has very different responses. The high porosity of the sample greatly support the gas adsorption process. Thus, the sample has a high level of sensitivity. With the above characteristics, the composite ceramic which was fabricated has the potential to be applied to gas sensors, especially ethanol gas sensors.

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Section: Sensing Behavior As An Indicator For Gas Sensormentioning

confidence: 68%

Section: Sensing Behavior As An Indicator For Gas Sensormentioning

confidence: 89%

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

Aliah¹,

Setiawan²,

Iman³

et al. 2023

Preprint

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“…The crystal structure of as-prepared Pd-doped SrFeO Fabrication and measurement of gas sensors.-The details of the fabrication and measurement of sensors were described in our previous works. 21,22 The experimental system for sensing performance measurement was shown in Fig. 1.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Therefore, for the sensors applied in this condition, the operating temperature should be higher than the environment temperature. Mixed potential type electrochemical sensors using YSZ (Yttria-stabilized Zirconia) solid electrolyte have good hightemperature stability, structure simplicity, and low costs, [21][22][23][24][25] and are widely used to detect different ambient pollution gases including NOx, [26][27][28] CO, 29 NH 3 , 21,22,30 H 2 , 31 H 2 S, 32 and VOCs 33,34 in harsh environment. Thus, it can be one of the most appropriate choices for SO 2 monitor in the exhaust gases from combustion.…”

mentioning

confidence: 99%

YSZ-Based Mixed Potential Type Sensors Utilizing Pd-doped SrFeO₃ Perovskite Sensing Electrode to Monitor Sulfur Dioxide Emission

Wu¹,

Zhang²,

Xiao³

et al. 2022

J. Electrochem. Soc.

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Sulfur dioxide (SO2) is one of the key pollutants in the atmosphere that should be monitored in many combustion facilities. In this paper, YSZ-based mixed potential SO2 sensors were developed utilizing the perovskite-type SrFeO3 sensing electrode, and Pd doping was applied to enhance the sensing performance. It was found that the sensor utilizing the Pd0.05-SrFeO3 sensing electrode showed the highest sensitivity toward 1-30 ppm SO2 at 575℃, and exhibited a piecewise linear relationship between ∆V and the logarithm of SO2 concentrations in this concentration range. The significant enhancement of sensing performances by 5 at.% Pd doping was mainly attributed to the increasing of electrochemical catalytic activity of the anodic reaction. After the sensing performance test in the temperature range between 525-625℃, 575℃ was selected as the optimum operating temperature. The sensing performances of the developed Pd0.05-SrFeO3 sensor were further evaluated at 575℃, exhibiting good selectivity to CO, CO2, NO, and NO2 interference and good long-term stability. In addition, the fluctuation of oxygen concentration can be corrected by the Butler-Volmer equation following the mixed potential theory.

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“…Flame Synthesis of WO 3 Nanoparticles. The WO 3 powders were prepared using a homemade FSP system, which has previously been applied for preparing ammonia-sensing materials 30,31 and catalysts for methane oxidation. 32 A schematic representation of the FSP system is shown in Figure S1 in the Supporting Information.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Flame Spray Pyrolysis Synthesis of WO₃ Sensing Materials: Effects of Flame Parameters on Particle Size Distribution and NO₂ Sensing Performance

Zhang

Yang

et al. 2022

Langmuir

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In this study, the flame spray pyrolysis (FSP) technique was employed to produce WO 3 nanoparticles, which were subsequently used as sensing materials for NO 2 sensors. To enhance the sensing performance, the effects of flame parameters on the particle properties and sensing performances for 150−1200 ppb NO 2 at 125 °C were investigated. The results indicate that WO 3 particles with an average crystal size of about 10−20 nm and a standard deviation of about 3−7.5 nm were generated by controlling the precursor and dispersion oxygen flow rate of FSP. Based on the evaluation of NO 2 sensing performance, WO 3 sensing materials synthesized under the 3/5 flame condition exhibited better sensitivity than sensors made under other flame conditions. In summary, the FSP method and the optimization of flame synthesis parameters could be an effective strategy to prepare the sensing materials with high sensing performance.

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Mixed potential type ammonia sensor using Fe-substituted LaCoO3 sensing electrode prepared by flame spray pyrolysis

Cited by 21 publications

References 42 publications

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

YSZ-Based Mixed Potential Type Sensors Utilizing Pd-doped SrFeO₃ Perovskite Sensing Electrode to Monitor Sulfur Dioxide Emission

Flame Spray Pyrolysis Synthesis of WO₃ Sensing Materials: Effects of Flame Parameters on Particle Size Distribution and NO₂ Sensing Performance

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Mixed potential type ammonia sensor using Fe-substituted LaCoO3 sensing electrode prepared by flame spray pyrolysis

Cited by 21 publications

References 42 publications

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

YSZ-Based Mixed Potential Type Sensors Utilizing Pd-doped SrFeO3 Perovskite Sensing Electrode to Monitor Sulfur Dioxide Emission

Flame Spray Pyrolysis Synthesis of WO3 Sensing Materials: Effects of Flame Parameters on Particle Size Distribution and NO2 Sensing Performance

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Product

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YSZ-Based Mixed Potential Type Sensors Utilizing Pd-doped SrFeO₃ Perovskite Sensing Electrode to Monitor Sulfur Dioxide Emission

Flame Spray Pyrolysis Synthesis of WO₃ Sensing Materials: Effects of Flame Parameters on Particle Size Distribution and NO₂ Sensing Performance