Influence of VOC structures on sensing property of SmFeO3 semiconductive gas sensor

Mori, Masami; Itagaki, Yoshiteru; Iseda, Jun; Sadaoka, Yoshihiko; Ueda, Tsuyoshi; Mitsuhashi, Hirokazu; Nakatani, Mikiya

doi:10.1016/j.snb.2014.06.031

Cited by 46 publications

(21 citation statements)

References 18 publications

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“…The possible sensing mechanisms of VOCs on metal oxides at a generic temperature, could be described by means of the equation (1) for oxygen adsorption and equations (2-4) for VOC sensing [43,44]:…”

Section: Operating Principle and Detection Mechanisms Of Semiconductimentioning

confidence: 99%

Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: A review

Mirzaei

Leonardi

Neri

2016

Ceramics International

984

389

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Section: Operating Principle and Detection Mechanisms Of Semiconductimentioning

confidence: 99%

Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: A review

Mirzaei

Leonardi

Neri

2016

Ceramics International

984

389

View full text Add to dashboard Cite

“…In the previous studies, quartz microbalance (QMB) gas sensors [21], surface acoustic wave (SAW) gas sensors [22], colorimetric sensor array [23], polymer/carbon composite [24], conducting polymer gas sensors [25], ion mobility spectrometry [26], exhaled breath condensate (EBC) [27], and metal oxide gas sensors [28] were applied to lung cancer detection through breath gas. Among them, the metal oxide sensors are known to possess several advantages with high sensitivity, very fast response, and low cost [29]. The gasflow control system with a sample pre-concentration module and signal processing module for pattern classification are also very essential components for diagnosing lung cancer by exhaled breath [26,27].…”

Section: Introductionmentioning

confidence: 99%

Analysis of volatile organic compounds in exhaled breath for lung cancer diagnosis using a sensor system

Chang

Lee

Ban

et al. 2018

Sensors and Actuators B: Chemical

126

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“…Already established methods for toluene detection are mostly based on optical methods such as surface plasmon resonance [16] and cataluminescence [17]. Various chemoresistive metal oxide gas sensors have been used to detect toluene, which include monodispersed Cr 2 O 3 porous microspheres [18], SnO 2 nanofibers [19], SnO 2 − Fe 2 O 3 interconnected nanotubes [20] and SmFeO 3 [21]. However, metal oxide chemoresistive gas sensors have some well-known disadvantages, e.g.…”

Section: Introductionmentioning

confidence: 99%

Toluene vapor sensing characteristics of novel copper(II), indium(III), mono-lutetium(III) and tin(IV) phthalocyanines substituted with 2,6-dimethoxyphenoxy bioactive moieties

Pişkin

Can

Odabaş

et al. 2018

J. Porphyrins Phthalocyanines

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This study presents the synthesis, characterization and toluene sensing properties of copper(II), indium(III) acetate, mono-lutetium(III) acetate and tin(IV) phthalocyanines substituted with 2,6-dimethoxyphenol bioactive groups at the peripheral and non-peripheral positions. The effects of the substituent's position on the toluene vapor detection capabilities of these compounds were investigated. Adsorption data were analyzed by using first-order and Elovich equations in order to investigate the adsorption kinetics. It was found that the kinetics of the toluene adsorption strongly depends on the position of the substituent groups. Our results showed that the Elovich equation fits the experimental data well for non-peripherally substituted Pc based sensors, while the pseudo first-order model best describes the adsorption data for peripheral substituted Pc based sensors. Some physical, photophysical and photochemical of 2,6-dimethoxyphenoxy substituted metal-free and metallophthalocyanines (indium(III) and zinc(II) Pcs) were investigated by our group [26]. We wondered how copper(II), indium(III), mono-lutetium(III) and tin(IV) Pcs substituted with 2,6-dimethoxyphenoxy bioactive moieties affect the physical, electronic and toluene sensing properties. Hence, highly soluble peripherally and non-peripherally substituted Cu(II), In(III), Lu(III) and Sn(IV) Pcs with 2,6-dimethoxyphenoxy were also synthesized (Scheme 1), and the effects of the position of the substituents and the variety of central metal ions on the their spectroscopic and toluene vapors sensing properties were investigated in this study. KEYWORDS EXPERIMENTAL Materials and Equipment2,6-Dimethoxy-phenoxy substituted phthalonitriles (1 and 2) were obtained by the reaction of 2,6-dimethoxy phenol with 3-nitrophthalonitrile or 4-nitrophthalonitrile through base catalyzed nucleophilic aromatic displacement reaction [26]. All other starting materials and solvents used were obtained commercially. All reactions were carried out under dry nitrogen atmosphere. The novel Pcs (3-10) were successively cleaned by washing with hot acetic acid-water solution by volume 7/3, water, ethanol and acetonitrile in the Soxhlet apparatus. Column chromatography was performed on silica gel 60 for a proper purification of the raw compounds. The purity of the products was tested in each step by thin layer chromotography (Silicagel F-254 coated TLC plate). Melting points of the Pc compounds were found to be higher than 300 °C. IR Spectra and electronic spectra were recorded on a Shimadzu FTIR-8300 (ATR) and a Shimadzu UV-1601 spectrophotometer, respectively. Elemental analyses were performed by the Instrumental Analysis Laboratory of TUBITAK-Ankara. Mass spectra were acquired on a Microflex III MALDI-TOF mass spectrometer (Bruker Daltonics, Germany) equipped with a nitrogen UV-Laser operating at 337 nm in reflectron mode with an average of 50 shots. SynthesisGeneral procedure for the synthesis of metallophth alocyanines (3-10).

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Influence of VOC structures on sensing property of SmFeO3 semiconductive gas sensor

Cited by 46 publications

References 18 publications

Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: A review

Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: A review

Analysis of volatile organic compounds in exhaled breath for lung cancer diagnosis using a sensor system

Toluene vapor sensing characteristics of novel copper(II), indium(III), mono-lutetium(III) and tin(IV) phthalocyanines substituted with 2,6-dimethoxyphenoxy bioactive moieties

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