Characteristics of hot spot oxygen sensor using GdBa2Cu3O7−–CuO composite ceramics

Iihama, Kazufumi; Kuroki, Yoshio; Okamoto, Takuya; Takata, Masasuke

doi:10.1016/j.cap.2008.12.019

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Cited by 5 publications

(2 citation statements)

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“…The potential application of GdBa 2 Cu 3 O 7-␦ (Gd123) ceramics utilizing hot spots as oxygen sensing elements was proposed quite recently [1,2]. Their suggestion follows earlier observations of formation of oxygen-sensitive hot-spots in RE123 (RE = Gd and Sm) ceramic rods [3].…”

Section: Introductionmentioning

confidence: 88%

Influence of hot-spot temperature on oxygen sensing response behavior of Er123 ceramic rods with hot spot

Hassan

Yahya

2010

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 88%

Influence of hot-spot temperature on oxygen sensing response behavior of Er123 ceramic rods with hot spot

Hassan

Yahya

2010

Journal of Alloys and Compounds

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“…nanostructures [7][8][9][10]. In most of these studies, resistivity of the sensors under H 2 S, CO, CO 2 , O 2 , H 2 , NO 2 , etc., atmosphere has been studied [11][12][13][14][15]. To our knowledge, there are very few studies on resistivity of CuO nanostructures under humid atmosphere [16,17].…”

Section: Introductionmentioning

confidence: 97%

Growth and humidity sensing properties of plate-like CuO nanostructures

Bayansal

Çetinkara

Çankaya

2014

Philosophical Magazine

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This paper describes a simple, low-temperature and cost-effective liquid-phase method to synthesize homogenous plate-like CuO nanostructures and their sensitivity to humidity. Scanning electron microscopy illustrated that the synthesized CuO nanoplates have thicknesses of~100 nm. X-ray diffraction measurements showed that the CuO nanostructures have high crystallinity with monoclinic crystal structure preferentially in ð 111Þ and ð111Þ directions. From the temperature-dependant dark electrical resistivity measurements, the ionization energies of the impurity levels and thermal band gap energies of the films are found as 0.30, 0.32 and 1.37, 1.39 for as-synthesized and annealed films, respectively. Gas sensing characteristics of the films were investigated for different concentrations of humidity, isopropyl alcohol, methanol, ethanol, chloroform and acetone vapours. It was found that the sensor is sensitive to humidity but not to the other volatile organic compounds.

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Effect of divalent ion substitution on oxygen sensing properties of hot-spot based Eu1−xCaxBa2Cu3O7−δ and Eu1−yMgyBa2Cu3O7−δ ceramics

Yaacob

Yahya

Yusof

et al. 2012

Ceramics International

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Characteristics of hot spot oxygen sensor using GdBa2Cu3O7−–CuO composite ceramics

Cited by 5 publications

References 10 publications

Influence of hot-spot temperature on oxygen sensing response behavior of Er123 ceramic rods with hot spot

Influence of hot-spot temperature on oxygen sensing response behavior of Er123 ceramic rods with hot spot

Growth and humidity sensing properties of plate-like CuO nanostructures

Effect of divalent ion substitution on oxygen sensing properties of hot-spot based Eu1−xCaxBa2Cu3O7−δ and Eu1−yMgyBa2Cu3O7−δ ceramics

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