Integrated sensing array of the perovskite-type LnFeO3 (Ln˭La, Pr, Nd, Sm) to discriminate detection of volatile sulfur compounds

Zhang, Zhihao; Zhang, Shendan; Jiang, Chunjie; Guo, Haichuan; Qu, Fengdong; Shimakawa, Yuichi

doi:10.1016/j.jhazmat.2021.125380

Cited by 27 publications

(20 citation statements)

References 49 publications

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“…The XRD patterns provided information on the crystallinity and the perovskite phase of the samples. As shown in Figure 2 e, all four prepared samples of Ag-modified ultrathin LaFeO 3 nanosheets showed a distinct LaFeO 3 perovskite phase, and the main peaks appearing in the plots corresponded to the diffraction of (100), (110), (200), (210), (211) and (221) crystal planes, which matched perfectly with the standard JCPDS card 75-0541 [ 33 ]. Only weak Ag 2 O (JCPDS: 19-1155) diffraction peaks were detected in the Ag/LaFeO 3 -10 sample corresponding to the peak of (101) crystal plane diffraction due to the low Ag content and high dispersion of the samples [ 29 ].…”

Section: Resultssupporting

confidence: 69%

“…Correspondingly, in the Raman spectrum in Figure S2b , the peaks of the curves corresponding to LaFeO 3 /GO at around 1347 cm −1 and 1588 cm −1 could be attributed to the D and G bands of the graphene plane [ 32 ]. In addition, the diffraction peaks of LaFeO 3 calcined at four different temperatures matched well with the standard LaFeO 3 (JCPDS: 75-0541) perovskite structure [ 33 ]. This implies that all the prepared LaFeO 3 sensing materials had a perovskite crystal structure with orthorhombic phases when calcined at 500 °C and higher.…”

Section: Resultsmentioning

confidence: 73%

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Ag-Modified Porous Perovskite-Type LaFeO3 for Efficient Ethanol Detection

Yuan

et al. 2022

Nanomaterials

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Perovskite (ABO3) nanosheets with a high carrier mobility have been regarded as the best candidates for gas-sensitive materials arising from their exceptional crystal structure and physical–chemical properties that often exhibit good gas reactivity and stability. Herein, Ag in situ modified porous LaFeO3 nanosheets were synthesized by the simple and efficient graphene oxide (GO)-assisted co-precipitation method which was used for sensitive and selective ethanol detection. The Ag modification ratio was studied, and the best performance was obtained with 5% Ag modification. The Ag/LaFeO3 nanomaterials with high surface areas achieved a sensing response value (Rg/Ra) of 20.9 to 20 ppm ethanol at 180 °C with relatively fast response/recovery times (26/27 s). In addition, they showed significantly high selectivity for ethanol but only a slight response to other interfering gases. The enhanced gas-sensing performance was attributed to the combination of well-designed porous nanomaterials with noble metal sensitization. The new approach is provided for this strategy for the potential application of more P-type ABO3 perovskite-based gas-sensitive devices.

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Section: Resultssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 73%

Ag-Modified Porous Perovskite-Type LaFeO3 for Efficient Ethanol Detection

Yuan

et al. 2022

Nanomaterials

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“…The cross-response experiments also proved that other gases (including CO, NO 2 , and ethanol) did not interfere with either response. In addition, these sensors showed good stability to the changes in ambient humidity (11-95% RH) (Zhang et al, 2021). To overcome the insufficient improvement of the performance of MOSR DMDS gas sensors from single metal modification, Liu et al prepared AuPd/SnO 2 hollow sphere gas sensor materials using the in situ reduction method.…”

Section: Dms and Dmdsmentioning

confidence: 99%

Metal–oxide–semiconductor resistive gas sensors for fish freshness detection

Debliquy

Zhang

2022

Comp Rev Food Sci Food Safe

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Fish are prone to spoilage and deterioration during processing, storage, or transportation. Therefore, there is a need for rapid and efficient techniques to detect and evaluate fish freshness during different periods or conditions. Gas sensors are increasingly important in the qualitative and quantitative evaluation of high‐protein foods, including fish. Among them, metal–oxide–semiconductor resistive (MOSR) sensors with advantages such as low cost, small size, easy integration, and high sensitivity have been extensively studied in the past few years, which gradually show promising practical application prospects. Herein, we take the detection, classification, and assessment of fish freshness as the actual demand, and summarize the physical and chemical changes of fish during the spoilage process, the volatile marker gases released, and their production mechanisms. Then, we introduce the advantages, performance parameters, and working principles of gas sensors, and summarize the MOSR gas sensors aimed at detecting different kinds of volatile marker gases of fish spoiling in the last 5 years. After that, this paper reviews the research and application progress of MOSR gas sensor arrays and electronic nose technology for various odor indicators and fish freshness detection. Finally, this review points out the multifaceted challenges (sampling system, sensing module, and pattern recognition technology) faced by the rapid detection technology of fish freshness based on metal oxide gas sensors, and the potential solutions and development directions are proposed from the view of multidisciplinary intersection.

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“…The invention and widespread use of solid-state gas sensors have offered an additional boost to the interest in VOC inspection and analysis for medical applications [ 182 ]. Semiconducting gas sensors are employed to test certain gases, such as hydrogen peroxide [ 183 ], acetone [ 184 ], ammonia [ 185 ], nitric oxide [ 186 ], and volatile sulfur [ 187 ], from human bodies. However, the study is being undertaken to create detection systems based on commercial MOX detectors to monitor low quantities of VOCs in breath [ 188 ], which is further enhanced by temperature modulation [ 189 ].…”

Section: Potential Biomedical Applicationmentioning

confidence: 99%

Semiconductor Multimaterial Optical Fibers for Biomedical Applications

et al. 2022

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Integrated sensors and transmitters of a wide variety of human physiological indicators have recently emerged in the form of multimaterial optical fibers. The methods utilized in the manufacture of optical fibers facilitate the use of a wide range of functional elements in microscale optical fibers with an extensive variety of structures. This article presents an overview and review of semiconductor multimaterial optical fibers, their fabrication and postprocessing techniques, different geometries, and integration in devices that can be further utilized in biomedical applications. Semiconductor optical fiber sensors and fiber lasers for body temperature regulation, in vivo detection, volatile organic compound detection, and medical surgery will be discussed.

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Integrated sensing array of the perovskite-type LnFeO3 (Ln˭La, Pr, Nd, Sm) to discriminate detection of volatile sulfur compounds

Cited by 27 publications

References 49 publications

Ag-Modified Porous Perovskite-Type LaFeO3 for Efficient Ethanol Detection

Ag-Modified Porous Perovskite-Type LaFeO3 for Efficient Ethanol Detection

Metal–oxide–semiconductor resistive gas sensors for fish freshness detection

Semiconductor Multimaterial Optical Fibers for Biomedical Applications

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