A highly sensitivity and anti-humidity gas sensor for ethanol detection with NdFeO3 nano-coral granules

Sheng, Hao; Ma, S.Y.; Han, Ting; Yun, Pengdou; Yang, Tingting; Ren, Jiangfeng

doi:10.1016/j.vacuum.2021.110642

Cited by 31 publications

(6 citation statements)

References 45 publications

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“…20 PrFeO 3 was prepared to detect acetone gas. 21 NdFeO 3 was prepared to detect ethanol 22 and CO 2 23 gas. And LaFeO 3 materials were prepared to detect CH 3 SH, 24 H 2 S, 25 triethylamine, 26 NO 2, 27 etc.…”

Section: Introductionmentioning

confidence: 99%

Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection

Liang,

Liu,

Lin

et al. 2024

ACS Appl. Nano Mater.

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The sensitive detection of n-propanol, a typical marker molecule in respiratory gases for lung cancer, has attracted much attention from the consideration of health in modern society. However, the identification of n-propanol at the sub-ppm level with rapid responsive ability is a significant challenge but very critical for the early diagnosis of lung cancer. Herein, we demonstrate a unique chromosome-like HoFeO 3 nanostructure material, prepared by annealing the self-sacrificial template of easily accessible HoFe-(CN) 6 , for high-performance n-propanol sensing. In detecting npropanol, the HoFeO 3 material-based sensor exhibits a response of 120.5 to 100 ppm of n-propanol at an operating temperature of 120 °C. Most importantly, it shows a low detection limit of 50 ppb and a good linear relationship between response and concentration. This sensor also possesses a rapid responsive ability with a response time of 4 s. The remarkable sensing performance, greatly outperforming other conventional semiconductor-based chemiresistive gas sensors, can be mainly attributed to the mesoporous structure, various surface element states, and narrow-band traits. The homemade experiment system further validates the practical potential of HoFeO 3 microchromosome-based gas sensors for early-stage lung cancer diagnosis.

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Section: Introductionmentioning

confidence: 99%

Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection

Liang,

Liu,

Lin

et al. 2024

ACS Appl. Nano Mater.

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“…A recently-developed portable alcohol meter uses semiconductor materials for conductivity or chemistry measurements, but the problem of complex and lengthy processing still remains. On the other hand, current research on alcohol sensing detection is based on using metal oxide with lower sensing limits [16][17][18][19][20]. In 2020, Zhang et al used the hydrothermal method to synthesize WS 2 and WO 3 for alcohol detection [19]; however, the solution cost more and there was a longer process time of 43 h. In the following year, Micromachines 2023, 14, 1330 2 of 11 Annanouch et al applied the lithography process to develop a SnO 2 -based MEMS chip to detect alcohol vapor [20].…”

Section: Introductionmentioning

confidence: 99%

An Effective Resistive-Type Alcohol Vapor Sensor Using One-Step Facile Nanoporous Anodic Alumina

Chung

2023

Micromachines

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With the increases in work environment regulations restricting alcohol to 1000 ppm, and in drink-driving laws, testing for alcohol with a simple method is a crucial issue. Conventional alcohol sensors based on sulfide, metal oxide, boron nitride or graphene oxide have a detection limit in the range of 50–1000 ppm but have disadvantages of complicated manufacture and longer processing times. A recent portable alcohol meter based on semiconductor material using conductivity or chemistry measurements still has the problem of a complex and lengthy manufacturing process. In this paper, a simple and effective resistive-type alcohol vapor sensor using one-step anodic aluminum oxide (AAO) is proposed. The nanoporous AAO was produced in one-step by anodizing low-purity AA1050 at room temperature of 25 °C, which overcame the traditional high-cost and lengthy process at low temperature of anodization and etching from high-purity aluminum. The highly specific surface area of AAO has benefits for good sensing performance, especially as a humidity or alcohol vapor sensor. With the resistance measurement method, alcohol vapor concentration of 0, 100, 300, 500, 700 and 1000 ppm correspond to mean resistances of 8524 Ω, 8672 Ω, 9121 Ω, 9568 Ω, 10,243 Ω, and 11,045 Ω, respectively, in a linear relationship. Compared with other materials for detecting alcohol vapor, the AAO resistive sensor has advantages of fast and simple manufacturing with good detection limits for practical applications. The resistive-type alcohol vapor-sensing mechanism is described with respect to the resistivity of the test substance and the pore morphology of AAO. In a human breath test, the AAO sensor can quickly distinguish whether the subject is drinking, with normal breath response of −30% to −40% and −20% to −30% response after drinking 50 mL of wine of 25% alcohol.

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“…Metal oxide semiconductor (MOS) sensors like ZnO, 1,2 WO 3 , 3,4 In 2 O 3 , 5–7 SnO 2 (ref. 8 and 9) and Fe 2 O 3 , 10,11 detect concentrations of various types of VOC by measuring the current or the resistance change of the metal oxide due to adsorption of gases. However, these sensors still suffer from difficulties such as a long-term stability and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

et al. 2023

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A highly sensitivity and anti-humidity gas sensor for ethanol detection with NdFeO3 nano-coral granules

Cited by 31 publications

References 45 publications

Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection

Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection

An Effective Resistive-Type Alcohol Vapor Sensor Using One-Step Facile Nanoporous Anodic Alumina

Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

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A highly sensitivity and anti-humidity gas sensor for ethanol detection with NdFeO3 nano-coral granules

Cited by 31 publications

References 45 publications

Narrow-Band HoFeO3 Nanostructure-Based Gas Sensor for n-Propanol Detection

Narrow-Band HoFeO3 Nanostructure-Based Gas Sensor for n-Propanol Detection

An Effective Resistive-Type Alcohol Vapor Sensor Using One-Step Facile Nanoporous Anodic Alumina

Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

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Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection

Narrow-Band HoFeO₃ Nanostructure-Based Gas Sensor for n-Propanol Detection