Preparation and Characterization of CeO&lt;SUB&gt;2&lt;/SUB&gt;–Y&lt;SUB&gt;2&lt;/SUB&gt;O&lt;SUB&gt;3&lt;/SUB&gt; Binary-Oxides and Their CO&lt;SUB&gt;2&lt;/SUB&gt; Gas-Sensing Properties

Ţelipan, Gabriela; Pîslaru‐Dănescu, Lucian; Marinescu, Virgil; Prioteasa, Paula Ionela; Ovezea, Dragos

doi:10.1166/sl.2016.3604

Cited by 2 publications

(8 citation statements)

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“…For this oxides system, the XRD pattern reveals the formation of well crystallized phases, CeO 2 indexed with the cubic fluorite structure and Y 2 O 3 with cubic structure. Also, a secondary phase with cubic structure and composition Ce 0.6 Y 0.4 O 1.8 was identified [44]. Figure 13 shows the SEM image for disc CeO 2 -Y 2 O 3 sintered, where it can be seen as a relative homogeneous structure and the crystallite sizes of CeO 2 and Y 2 O 3 were in range of 26-54 nm in good accord with X-ray diffraction analysis.…”

Section: Structural and Morphological Characterization Of Sensitive Msupporting

confidence: 52%

“…Sol gel method applied for synthesis of Y 2 O 3 -doped CeO 2 sensitive material, is in accord with ref. [44] and used as starting reagents Ce(SO 4 ) 2 Â 4H 2 O (97% purity, Merck) and Y (NO 3 ) 3 Â 3H 2 O (98% purity Karlsrushe GmbH in molar ratio CeO 2 /Y 2 O 3 = 4:1). The salts were dissolved in deionized water.…”

Section: Synthesis Methodsmentioning

confidence: 99%

“…To this solution, 40 ml ethylene glycol was added to promote citrate polymerization and heated at 90 C. The gel formed was filtered, washed and heat treated in oven at 100 C. The powder obtained was calcined at 800 C for 2 hours. The powder was pressed to disc form using 10 ton force/cm 2 , with dimensions diameter 4 mm, height 1 mm and then sinterized at 1100 C for 6 hours [44].…”

Section: Synthesis Methodsmentioning

confidence: 99%

“…Below the base, the heater element composed of Ni wire with a diameter of 0.1 mm was placed, the winding is composed from 18 turns with a diameter of d = 3 mm. Figure 9 shows how it built the CO 2 sensor [44].…”

Section: The Construction Of the Sensor For Co 2 Detection Designed Wmentioning

confidence: 99%

“…The DTA curve releases two endothermic peaks at 159.2 and 225.1 C. The last one has a correspondent in DTG curve at 219 C, the total mass loss was 86.95% from initial mass. Other thermal transformation appears at 430 C which represents on in a TG curve a loss of 4.91% which correspond to the decomposition of precursors, consisting in cerium sulfate and yttrium nitrate and in the end only Ce-Y-related oxides are obtained [44].…”

Section: Structural and Morphological Characterization Of Sensitive Mmentioning

confidence: 99%

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Prototyping a Gas Sensors Using CeO2 as a Matrix or Dopant in Oxide Semiconductor Systems

Pîslaru‐Dănescu¹,

Ţelipan²,

Ion³

et al. 2019

Cerium Oxide - Applications and Attributes

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In this chapter, two important aspects of using CeO 2 in the field of gas sensors are presented. Firstly, for CO 2 detection in the range of 0-5000 ppm, a binary semiconductor oxides CeO 2 -Y 2 O 3 was used. Secondly, as a dopants, in oxide semiconductor systems, used to detect the NO 2 . In this case, CeO 2 is used as a dopant in hybride composite, consisting of reduced graphene oxide/ZnO, in order to increase the sensibility in NO 2 detection at low concentration in the range of 0-10 ppm. The structural and morphological characterization of sensitive materials by X-ray diffraction, SEM, adsorption desorption isotherms, thermal analysis and RAMAN spectroscopy are presented. Also, the sensing element of the sensor that detects the NO 2 is achieved by depositing the nanocomposite material on the interdigital grid. The electronic conditioning signal from the sensing element is achieved by using a Wheatstone bridge together with an instrumentation operational amplifier.

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Section: Structural and Morphological Characterization Of Sensitive Msupporting

confidence: 52%

Section: Synthesis Methodsmentioning

confidence: 99%

Section: Synthesis Methodsmentioning

confidence: 99%

Section: The Construction Of the Sensor For Co 2 Detection Designed Wmentioning

confidence: 99%

Section: Structural and Morphological Characterization Of Sensitive Mmentioning

confidence: 99%

See 3 more Smart Citations

Prototyping a Gas Sensors Using CeO2 as a Matrix or Dopant in Oxide Semiconductor Systems

Pîslaru‐Dănescu¹,

Ţelipan²,

Ion³

et al. 2019

Cerium Oxide - Applications and Attributes

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Microstructural, electrophysical and gas-sensing properties of CeO2–Y2O3 thin films obtained by the sol-gel process

Simonenko

Симоненко

Mokrushin

et al. 2020

Ceramics International

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Preparation and Characterization of CeO<SUB>2</SUB>–Y<SUB>2</SUB>O<SUB>3</SUB> Binary-Oxides and Their CO<SUB>2</SUB> Gas-Sensing Properties

Cited by 2 publications

References 0 publications

Prototyping a Gas Sensors Using CeO2 as a Matrix or Dopant in Oxide Semiconductor Systems

Prototyping a Gas Sensors Using CeO2 as a Matrix or Dopant in Oxide Semiconductor Systems

Microstructural, electrophysical and gas-sensing properties of CeO2–Y2O3 thin films obtained by the sol-gel process

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