The gas sensor utilizing CeO2 nanorods for the low temperature detection of hydrogen

Li, Haohua; Qu, Yunhao; Zhang, Xiangzhao

doi:10.1016/j.inoche.2021.108692

Cited by 21 publications

(8 citation statements)

References 59 publications

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“…This advantage reduces sensor recovery time and stabilizes the sensor's baseline. Li, Qu, and Zhang (2021) developed a CeO 2 nanorod‐based sensor capable of detecting hydrogen in a low‐temperature environment, and the CeO 2 nanorods exhibited stronger hydrogen sensing performance compared with nanospheres. In Zhang et al (2021) study, a highly sensitive and selective NO 2 sensor of alkalized V2CTx MXene driven by interlayer swelling improved the response to 50 ppm NO 2 gas by more than 80 times, and improved the sensitivity to 5–50 ppm NO 2 by two orders of magnitude.…”

Section: Discussionmentioning

confidence: 99%

Gas sensing technology for meat quality assessment: A review

Wang

Chen

2022

J Food Process Engineering

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Meat is rich in many nutritional elements and is one of the most basic foods for human beings. The demand for meat is increasing year by year, but at the same time, meat is highly susceptible to spoilage during storage and transportation, and consumption of such meat can be hazardous to human health. Gas sensing technology provides a nondestructive, less time‐consuming, and convenient detection method compared with traditional meat quality testing techniques. In this review, we briefly describe the working principle, the common sensors, signal processing, and pattern recognition for gas sensing technology. Then, we discuss the most relevant contributions of gas sensing technology to meat freshness evaluations and authenticity assessments using different data processing methods in recent years. Finally, the problems, prospects, and likely future development of gas sensing technology are highlighted. Practical applications This article analyzes each key technology of gas sensing, points out some existing defects and future trends, reviews the practical applications of gas sensing technology in meat quality inspection in recent years, and puts forward feasible technology enhancement suggestions.

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Section: Discussionmentioning

confidence: 99%

Gas sensing technology for meat quality assessment: A review

Wang

Chen

2022

J Food Process Engineering

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“…CeO 2 100 200-4000 Nanorods via solvothermal wet chemical route [58] No 27 2-3 WO 3 25 1000-30 000 Solvothermal and precipitation/ impregnation, spin-coating [53] Palladium (Pd) 80.4 <1 WO 3 80 3000 Powder suspension, thin film [59] Platinum (Pt) and Palladium (Pd) 875 <1…”

Section: -3mentioning

confidence: 99%

CVD Grown Tungsten Oxide for Low Temperature Hydrogen Sensing: Tuning Surface Characteristics via Materials Processing for Sensing Applications

Wilken

Çiftyürek

Cwik

et al. 2022

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a wide bandgap of 2.68 eV [6] and electrical conductivities ranging between 10 −6 to 10 −4 (Ω cm −2 ) [7] Various stable oxides and suboxides of tungsten can exist on the surface such as WO, WO 2 , W 2 O 3 , W 4 O 3 , W 17 O 47 , W 18 O 49 , and WO 3 (in an oxygen-deficient form WO 3−x ). [8] Here, the oxidation states of tungsten varies from +II to +VI. [9] Owing to this range of possible stoichiometries accompanied by charged surface defects, tungsten oxide preserves typical n-type semiconducting behavior and thus, catalytic activity toward different gases, enabling application in chemical gas sensors. [1,10] Sensors employing tungsten oxide (WO 3 ) in several micro-and nanostructures were used for the detection of a variety of gases such as, sulfur dioxide (SO 2 ), [11] hydrogen sulfide (H 2 S), [11,12] ozone (O 3 ), [12] nitrogen oxide (NO x ), [12][13][14] dimethylacetamide (DMAC, Me(CO)NMe 2 ), [12] trimethylamine (NMe 3 ), [15] acetone, [14] ammonia (NH 3 ), [12] oxygen (O 2 ) [9] and water (H 2 O). [9,14] In particular for hydrogen (H 2 ), [12,16] tungsten oxide has shown good sensing properties highlighting the interest of this material, as hydrogen is as an attractive source for renewable energy due to its naturally exhaustible by-products (H 2 O) without filtration. However, there are some challenges and one of them is to develop efficient procedures for H 2 storage. Due to its almost instantaneous diffusion rate, comfort in penetration through almost all materials, the development of dedicated safety measures to monitor storage and flow systems is equally important.

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“…2 Though CeO 2 is known to be an important material for solid oxide fuel cells (SOFCs), 3 nanometric ceria has also been used in solar cells, 4 luminescent, polishing and sunscreen materials, and catalysts, 5 as well as in various biomedical applications. 6 Pure CeO 2 has seldom been used for toxic gas sensing [7][8][9][10] despite the presence of oxygen vacancies and mixed valence state.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured CeO₂ ultrathin film deposited by the Langmuir Blodgett technique for highly sensitive and specific detection of sub ppm level NO₂ gas at room temperature

et al. 2023

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The gas sensor utilizing CeO2 nanorods for the low temperature detection of hydrogen

Cited by 21 publications

References 59 publications

Gas sensing technology for meat quality assessment: A review

Gas sensing technology for meat quality assessment: A review

CVD Grown Tungsten Oxide for Low Temperature Hydrogen Sensing: Tuning Surface Characteristics via Materials Processing for Sensing Applications

Nanostructured CeO₂ ultrathin film deposited by the Langmuir Blodgett technique for highly sensitive and specific detection of sub ppm level NO₂ gas at room temperature

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The gas sensor utilizing CeO2 nanorods for the low temperature detection of hydrogen

Cited by 21 publications

References 59 publications

Gas sensing technology for meat quality assessment: A review

Gas sensing technology for meat quality assessment: A review

CVD Grown Tungsten Oxide for Low Temperature Hydrogen Sensing: Tuning Surface Characteristics via Materials Processing for Sensing Applications

Nanostructured CeO2 ultrathin film deposited by the Langmuir Blodgett technique for highly sensitive and specific detection of sub ppm level NO2 gas at room temperature

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Nanostructured CeO₂ ultrathin film deposited by the Langmuir Blodgett technique for highly sensitive and specific detection of sub ppm level NO₂ gas at room temperature