Influence of SO[sub 2] Gas on Output of Resistive Oxygen Sensors Using CeO[sub 2] and Ce[sub 0.8]Zr[sub 0.2]O[sub 2]

Izu, Noriya; Shin, Woosuck; Matsubara, Ichiro; Murayama, Norimitsu

doi:10.1149/1.1931407

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…23 Because of the natural abundance, high structural stability, numerous oxygen vacancy (O v ), and multivalence, cerium oxide (CeO 2 ) has attracted much attention as gas-sensing materials. 24 For instance, Michel et al synthesized hierarchical three-dimensional (3D) CeO 2 with excellent CO-sensing performance at 523.15 K. 25 Izu et al prepared CeO 2 films with good sensing properties for SO 2 at 873 K. 26 27 The {100} plane of CeO 2 is a polar surface with an open crystal structure and abundant unsaturated atoms, and so it is more active. 28−30 However, the surface energy of the {100} plane is large, resulting in poor stability.…”

Section: Introductionmentioning

confidence: 99%

Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Zhang

Huang

et al. 2020

ACS Appl. Mater. Interfaces

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Metal oxides with a polar surface interact strongly with polar NO 2 molecules, thus facilitating sensitive detection of NO 2 . In this work, the composites comprising graphene and cubic CeO 2 nanoparticles with the {100} polar surface are prepared by a hydrothermal technique, and they exhibit fast response, excellent selectivity, stable recovery, and sensitive detection with a low detection limitation of 1 ppm for NO 2 at room temperature. According to the first-principle calculations, the adsorption energy of NO 2 on the CeO 2 {100} polar surface is the most negative corresponding to the strongest interactions between them. The formation energy of oxygen vacancies (O v ) on the {100} polar plane is also negative, and the abundant O v facilitates the adsorption of NO 2 . The internal electric field near the polar surface promotes the charge separation and accelerates the charge exchange between NO 2 and the composites. In addition, graphene promotes electron transfer at the interface and improves the stability of the CeO 2 {100} polar surface. The composites of graphene and metal oxides with a polar surface are excellent for NO 2 detection, and the discovery reveals a new sensing strategy.

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Section: Introductionmentioning

confidence: 99%

Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Zhang

Huang

et al. 2020

ACS Appl. Mater. Interfaces

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“…14 Izu et al furnished a screen-printed thick film CeO 2 sensor for SO 2 gas sensing application. 15 More such articles are published on CO sensing using doped, undoped, or composites of ceria. 16,17 Durrani et.…”

Section: Introductionmentioning

confidence: 99%

“…There are reports on the detection of oxygen by resistive CeO 2 sensors, consisting of thick or thin films of CeO 2 . , The morphological properties and surface porosities have also been analyzed in the light of their sensing performances. − Xuan et al reported the development of a CS 2 –CeO 2 sensor where the intensity of the emitted chemiluminescence was recorded as a signal, associated with the gas concentration . Izu et al furnished a screen-printed thick film CeO 2 sensor for SO 2 gas sensing application . More such articles are published on CO sensing using doped, undoped, or composites of ceria. , Durrani et.…”

Section: Introductionmentioning

confidence: 99%

Development of Low-ppm CO Sensors Using Pristine CeO₂ Nanospheres with High Surface Area

Majumder

Roy

2018

ACS Omega

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Mesoporous CeO 2 nanospheres with appreciably high surface area are prepared using reversed micelles by a water-in-oil microemulsion method. The structural morphology and semiconducting properties of the nanoparticles are thoroughly investigated using X-ray diffraction, field effect scanning electron microscopy, transmission electron microscopy, and UV–visible spectroscopic techniques. Even after high-temperature calcination, the morphological retention of the material is apparent by electron microscopy. The deployment of undoped CeO 2 nanospheres for the detection of low-ppm CO yields superior performances in terms of sensitivity, response–recovery times, and selectivity compared to those of other sensors of the same genre. These CO sensors exhibit ∼ 52% sensitivity with a response time of only 13 s. The sensor parameters are analyzed as a function of both temperature and gas concentration. In addition to that on the cost-effective and scalable synthesis of CeO 2 nanospheres, this article also reports on the fabrication of packaged CO sensors, which can be potentially utilized for industrial and environmental monitoring purposes.

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“…We have studied resistive oxygen sensors using cerium oxide as a sensor material [6-10], which has advantageous features such as durability against corrosive gases in vehicle exhaust [11-13]. The response time of a sensor using a cerium oxide thick film was improved by reducing the particle size from 2,000 to 100 nm in the thick film [14].…”

Section: Introductionmentioning

confidence: 99%

Resistive Oxygen Sensor Using Ceria-Zirconia Sensor Material and Ceria-Yttria Temperature Compensating Material for Lean-Burn Engine

Izu

Nishizaki

Shin

et al. 2009

Sensors

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Temperature compensating materials were investigated for a resistive oxygen sensor using Ce0.9Zr0.1O2 as a sensor material for lean-burn engines. The temperature dependence of a temperature compensating material should be the same as the sensor material; therefore, the Y concentration in CeO2-Y2O3 was optimized. The resistance of Ce0.5Y0.5O2-δ was independent of the air-to-fuel ratio (oxygen partial pressure), so that it was confirmed to function as a temperature compensating material. Sensor elements comprised of Ce0.9Zr0.1O2 and Ce0.5Y0.5O2-δ were fabricated and the output was determined to be approximately independent of the temperature in the wide range from 773 to 1,073 K.

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Influence of SO[sub 2] Gas on Output of Resistive Oxygen Sensors Using CeO[sub 2] and Ce[sub 0.8]Zr[sub 0.2]O[sub 2]

Cited by 9 publications

References 15 publications

Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Development of Low-ppm CO Sensors Using Pristine CeO₂ Nanospheres with High Surface Area

Resistive Oxygen Sensor Using Ceria-Zirconia Sensor Material and Ceria-Yttria Temperature Compensating Material for Lean-Burn Engine

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Influence of SO[sub 2] Gas on Output of Resistive Oxygen Sensors Using CeO[sub 2] and Ce[sub 0.8]Zr[sub 0.2]O[sub 2]

Cited by 9 publications

References 15 publications

Stability and Sensing Enhancement by Nanocubic CeO2 with {100} Polar Facets on Graphene for NO2 at Room Temperature

Stability and Sensing Enhancement by Nanocubic CeO2 with {100} Polar Facets on Graphene for NO2 at Room Temperature

Development of Low-ppm CO Sensors Using Pristine CeO2 Nanospheres with High Surface Area

Resistive Oxygen Sensor Using Ceria-Zirconia Sensor Material and Ceria-Yttria Temperature Compensating Material for Lean-Burn Engine

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Product

Resources

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Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Stability and Sensing Enhancement by Nanocubic CeO₂ with {100} Polar Facets on Graphene for NO₂ at Room Temperature

Development of Low-ppm CO Sensors Using Pristine CeO₂ Nanospheres with High Surface Area