A novel limiting current oxygen sensor prepared by slurry spin coating

Wang, Cheng; Liu, Tao; Wang, Xiangnan; Li, Jingyun; Jin, Haoran; Yu, Jingkun; Yi, Maoyi; Mo, Yangcheng

doi:10.1016/j.snb.2018.05.076

Cited by 16 publications

(3 citation statements)

References 21 publications

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“…Among them, ZrO 2 has attracted a great deal of attention due to its both acid and base active centers on the surface as well as oxidizing and reducing sites [4]. Moreover, abundant oxygen-containing functional groups, as well as unsaturated Lewis acid-base Zr 4+ -O 2− pairs, make ZrO 2 a widely novel material for ion exchange membranes, oxygen [5] and NO x sensors [6], adsorption and separation [7][8][9][10][11][12][13][14], catalyst and catalyst support [15][16][17], controlled release of pharmaceutical ingredients [18], solar light absorption layer in solar cells [19], and so on. To obtain zirconia nanoceramics, various methods and techniques have been developed and investigated, including sol-gel process, hydrothermal process, and precipitation method.…”

Section: Introductionmentioning

confidence: 99%

Effect of sol-gel processing parameters on structure of zirconia

Silva

Vasconcelos

2019

Cerâmica

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The present study reports the experimental results regarding the effect of molar ratio of hydrolysis water used in the sol-gel synthesis upon the structure of zirconia. The ZrO 2 materials were synthesized via simple metal-chelate route using zirconium n-propoxide [Zr(OCH 2 CH 2 CH 3) 4 ], n-propanol, acetic acid, and deionized water. Thermogravimetric analysis and infrared spectroscopy were performed to evaluate the structural evolution upon samples heating; the complete removal of organic compounds at 330 °C was verified. The results of X-ray diffraction showed that the calcination temperature of 400 °C was enough to the crystallization of the metastable tetragonal zirconia phase. Nitrogen adsorption-desorption measurements indicated that the textural properties of zirconia were affected by the water content used in the synthesis, and the highest surface area was achieved when the water molar ratio of 4 was used.

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Section: Introductionmentioning

confidence: 99%

Effect of sol-gel processing parameters on structure of zirconia

Silva

Vasconcelos

2019

Cerâmica

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“…Numerous types of oxygen gas sensors have now been developed, ranging from well-established and commercially available sensors (e.g., electrogalvanic sensors, ultrasonic sensors, zirconium oxide sensors) to new state-of-the-art sensors. Examples of new sensors include pentrafluorophenyporphine dye-based sensors [1], LaFeO 3 ceramics sensors [2], La 0.7 Sr 0.3 MnO 3 -and Y 0.08 Zr 0.92 O 2 -based limiting current sensors [3], barium ferrite-based temperature-dependent sensors [4], and TiO 2 -based lambda sensors [5].…”

Section: Introductionmentioning

confidence: 99%

Application of Artificial Neural Networks and Adaptive Neuro‐Fuzzy Inference Systems for Attenuating Effects of Temperature and Humidity on Sensor Accuracy

Tongpadungrod,

Laosuwan,

Moore

et al. 2023

Chem Eng & Technol

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The novelty of this work is the correction of measurement errors in a galvanic cell sensor, which might occur due to temperature and humidity variations, using artificial neural networks (ANN) and adaptive neuro‐fuzzy inference systems (ANFIS). The training process for the ANN and ANFIS employed 540 data sets consisting of voltage responses of the galvanic cell to known oxygen concentrations, temperatures, and relative humidities. The trained ANFIS was embedded within a central processing unit (CPU) and tested on another 144 data sets with various oxygen concentrations, temperatures, and relative humidities. The deviations for the sensor with ANFIS were less than 0.5 % for 109 data points (75 %), and there was no deviation greater than 2.5 %.

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“…The spin coating method is widely used because it is easy to use, has low-cost, and produces uniform films [9]. Due to these characteristics, the spin coating is used for the deposition of thin films of various materials in photocatalytic applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the photocatalytic properties of TiO2-CeO2 multilayer thin films obtained by spin coating method

et al. 2020

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TiO2-CeO2 multilayer thin films were deposited by the spin coating method and calcined at 500 and 700 °C. Thin films were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and diffuse reflectance spectroscopy. Photocatalytic properties were estimated by varying the concentration of the methylene blue dye (MB) when illuminated by UV radiation. The XRD patterns showed that the temperatures of 500 and 700 °C were effective to obtain TiO2 and CeO2 phases. The difference in the homogeneity of TiO2 and CeO2 films was evident in the AFM images, where the films showed an average roughness of 2.0 and 5.3 nm, respectively. The CeO2-TiO2 thin film obtained at 700 °C showed the best photocatalytic activity, reducing the concentration of MB by approximately 80%, while the CeO2 and TiO2 films obtained at 700 °C reduced only 20% and 29%, respectively. The reuse test showed that the thin films maintained their photocatalytic activity after 4 cycles, and there was no need for thermal treatment, indicating that it is an immobilized photocatalyst with high efficiency in the degradation of organic dyes.

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A novel limiting current oxygen sensor prepared by slurry spin coating

Cited by 16 publications

References 21 publications

Effect of sol-gel processing parameters on structure of zirconia

Effect of sol-gel processing parameters on structure of zirconia

Application of Artificial Neural Networks and Adaptive Neuro‐Fuzzy Inference Systems for Attenuating Effects of Temperature and Humidity on Sensor Accuracy

Effect of temperature on the photocatalytic properties of TiO2-CeO2 multilayer thin films obtained by spin coating method

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