Luminescent sensor for O2 detection in biomethane streams

Urriza-Arsuaga, Idoia; Bedoya, Maximino; Orellana, Guillermo

doi:10.1016/j.snb.2018.09.108

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…With the aim of developing a reversible luminescent H 2 S sensor, a Ru(II) polypyridyl complex was selected first because these indicator dyes are currently in commercial widespread use for luminescent O 2 monitors . Moreover, we can capitalize on the high versatility of these coordination compounds that has been exploited so far for sensing different analytes (O 2 , pH, CO 2 , humidity, temperature, etc). , In this way, a variety of luminescent Ru(II) polypyridyls, responding to different targets thanks to tailored photochemical quenching of their emission by electron, proton or energy transfer, can be obtained by a judicious design and selection of their heterocyclic chelating ligands. Taking into account that H 2 S is a known reductant, we considered the use of photooxidizing Ru(II) polypyridyls, so that the analyte would quench the emissive excited state of such complexes by photoinduced electron transfer (PET), but its ground state would be unreactive.…”

Section: Resultsmentioning

confidence: 99%

Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase

2018

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Hydrogen sulfide monitoring has become essential in the natural gas industry, biogas production, wastewater treatment plants, paper mills, sewers, and landfills of waste due to its toxic, irritating, extremely flammable, and corrosive features. However, each of the current monitoring technologies (gas chromatography, lead acetate tape, electrochemical, UV and NIR absorption) has its own limitations. Furthermore, the existing luminescent molecular probes for H 2 S cannot monitor it continuously due to the irreversibility of their reaction with the analyte. Herein, we report the development and application of the first reversible H 2 S luminescent sensor. The sensing layer capitalizes on the highly photooxidizing phosphorescent [bis(1,10-phenanthroline)-(1,4,5,8-tetraazaphenanthrene)]ruthenium(II) dication immobilized on alkali-treated silica microspheres, interrogated with a dedicated fiberoptic phase-sensitive luminometer. The chemosensing mechanism is a fully reversible electron transfer from the analyte to the photoexcited dye. The H 2 S optosensor exhibits a 0.34−50 ppmv dynamic range, a limit of detection equal to 0.025 ppmv, repeatability, and reproducibility better than 3.2%, plus response and recovery times (t 90 and t −90 ) shorter than 240 s. The H 2 S luminescent sensor performance has been verified for more than six months in a biomethane production plant, showing an excellent stability with automatic daily maintenance.

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Section: Resultsmentioning

confidence: 99%

Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase

2018

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“…The phenomenon of luminescence refers to the radiation phenomenon in which a substance absorbs other forms of energy and converts that energy into visible light when it is stimulated by light, voltage, or force. Sensors based on the principle of luminescence have broad prospects in biomedical detection, structural health detection, smart wear, and air quality monitoring; many scholars have conducted extensive research in this area [1][2][3][4][5][6][7]. Chandra [8] reported research on the application of mechano-luminescent (ML) materials in the field of impact luminescence and proposed a new type of mechano-luminescent stress sensor under high pressure.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Luminescence Properties of PVDF/ZnS:Mn Flexible Thin-Film Sensors

et al. 2022

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Flexible luminescent thin-film sensors have attracted widespread attention for their potential applications in biomedical detection, structural health detection, and smart wear. In this work, PVDF/ZnS:Mn flexible luminescent thin-film sensors were fabricated using electro-assisted 3D-printing techniques. The interaction and influence of PVDF thin film and ZnS:Mn were studied. The mechanism through which the PVDF matrix and ZnS:Mn particles affects the luminescence of the flexible thin-film sensor were investigated. The results demonstrate that the ZnS:Mn luminescent particles in PVDF thin films can promote the formation of the β-phase in the PVDF thin films. The mechano-luminesce spectra of the PVDF/ZnS:Mn composite thin film is consistent with the photoluminescence spectra, both of which exhibit yellow light with a wavelength of 580 nm. Mn entering the ZnS lattice increases the number of effective luminescent centres. Because of the double piezoelectric field, when the Mn content of ZnS:Mn is 4 at.% and PVDF films contain 3 wt.% ZnS:Mn particles, the PVDF/ZnS:Mn flexible thin-film sensors demonstrate excellent mechano-luminescence performance.

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“…Controlling the air-to-fuel ratio during the combustion process at the critical point of excess oxygen is beneficial for improving the combustion efficiency, product generation, and safe combustion ( Shuk and Jantz, 2015 ; Zhang et al, 2017 ). Because the presence of O 2 corrodes gas storage and transportation systems, monitoring O 2 in biomethane is also a necessary part ( Urriza-Arsuaga et al, 2019 ). In the medical and food processing and waste management industries, sometimes it is also necessary to measure the oxygen content ( Hong et al, 2018 ; Wang et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Efficient N2- and O2-Sensing Properties of PtSe2 With Proper Intrinsic Defects

Xin

Zhang

et al. 2021

Front. Chem.

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Developing efficient N2 and O2 gas sensors is of great importance to our daily life and industrial technology. In this work, first-principles calculations are performed to study the N2 and O2 gas-sensing properties of pure and defected PtSe2. It is found that both N2 and O2 adsorb weakly on pure PtSe2, and adsorption of the molecules induces negligible changes in the electrical and optical properties. Whereas the Pt@Se anti-site defect significantly improves the N2 adsorption capacity of PtSe2 and induces notable changes in the electrical property. Similar results are also observed for the Pt and Se vacancies and Pt@Se anti-site defects when examining O2 adsorption. In addition, notable changes in the optical absorption spectra of the PtSe2 with Pt@Se defect are induced upon N2 adsorption, which also occurs for PtSe2 with Pt and Se vacancies and Pt@Se anti-site defects upon O2 adsorption. These results demonstrate that PtSe2 with the corresponding defects can be both excellent electrical and optical sensors for detecting N2 and O2 gases. Our work offers a new avenue for preparing efficient gas sensors.

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Luminescent sensor for O2 detection in biomethane streams

Cited by 12 publications

References 26 publications

Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase

Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase

Preparation and Luminescence Properties of PVDF/ZnS:Mn Flexible Thin-Film Sensors

Efficient N2- and O2-Sensing Properties of PtSe2 With Proper Intrinsic Defects

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Luminescent sensor for O2 detection in biomethane streams

Cited by 12 publications

References 26 publications

Unprecedented Reversible Real-Time Luminescent Sensing of H2S in the Gas Phase

Unprecedented Reversible Real-Time Luminescent Sensing of H2S in the Gas Phase

Preparation and Luminescence Properties of PVDF/ZnS:Mn Flexible Thin-Film Sensors

Efficient N2- and O2-Sensing Properties of PtSe2 With Proper Intrinsic Defects

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Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase

Unprecedented Reversible Real-Time Luminescent Sensing of H₂S in the Gas Phase