Highly sensitive and selective ethylene gas sensors based on CeOx-SnO2 nanocomposites prepared by a Co-precipitation method

Leangtanom, Pimpan; Wisitsoraat, Anurat; Jaruwongrungsee, Kata; Chanlek, Narong; Phanichphant, Sukon; Kruefu, Viruntachar

doi:10.1016/j.matchemphys.2020.123540

Cited by 34 publications

(25 citation statements)

References 28 publications

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“…The mechanism of the sensing is based on a specific interaction between the MWCNT/conjugate doped with Ag + or Cu 2+ and the ethylene molecules. A high affinity has been reported for d 10 transition metal ions, such as Cu + , Ag + , Cu 2+ , Ni 3+ , Pt 2+ , Rh 3+ , and Os 4+ [ 28 , 29 , 30 , 31 ]. The binding can be generally described as a σ-donation/π backbonding of electron density between the olefin and the empty and filled metal d-orbitals, respectively [ 32 ].…”

Section: Resultsmentioning

confidence: 99%

“…In another work, CeOx-SnO 2 nanostructures were produced by a co-precipitation method, in which CeOx nano-crystallites containing Ce 3+ and Ce 4+ mixed oxidation states formed a composite structure with SnO 2 . These nanocomposites exhibited a high ethylene response, a short response time, a low detection range (0.3–10 ppm), and a high selectivity [ 29 ]. Fong et al made a palladium (Pd) complex where the Pd cycling between Pd(0) and Pd(II) took place through Wacker oxidation and increased the electrical resistance [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

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Covalent Immobilization of Polyaniline Doped with Ag+ or Cu2+ on Carbon Nanotubes for Ethylene Chemical Sensing

et al. 2021

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Multi-walled carbon nanotubes (MWCNTs) are promising materials for chemical gas sensing because of their high electrical and mechanical properties and significant sensitivity to changes in the local environment. However, high-content MWCNT films suffer from the low tunability of the electrical resistance, which is crucial for high chemoresistive sensing performance. This study reports the conjugation of MWCNTs and oligomers of polyaniline (PANI) doped with Ag+ or Cu2+ incorporated into a PVC/polyacrylate. MWCNTs were sonicated in n-methyl pyrrolidine (NMP), and PANI was conjugated via a 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and an N-hydroxysuccinimide (EDC/NHS) process. MWCNT/PANI Ag+ or Cu2+ conjugates were doped to form a coordinate bond. The doped conjugates were successfully incorporated into the PVC/polyacrylate. These MWCNT/PANI conjugates doped were exposed to different concentrations of ethylene gas to examine their feasibility for ethylene detection.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Covalent Immobilization of Polyaniline Doped with Ag+ or Cu2+ on Carbon Nanotubes for Ethylene Chemical Sensing

et al. 2021

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“…Tin oxide (SnO 2 ) is a common n-type semiconductor used for many decades in gas sensing. Tungsten oxides [ 120 ] and iron oxides [ 121 ] are also sensitive to ethylene gas but without modification exhibit lower sensitivity and less favorable detection limits than tin oxide-based sensors. Regardless of the type of metal oxide used in these gas sensors, the circuits and interfaces required to measure subsequent changes in resistance are simple and offer the possibility for low-cost, compact, and perhaps even single-use ethylene sensors.…”

Section: Sensing Technologies For Ethylenementioning

confidence: 99%

“…The use of heterostructures can also improve sensor performance. For example, cerium oxide-tin oxide nanocomposite heterostructures can increase sensor response to ethylene gas by a factor of 5 or more and reduce the detection limit from ppm to sub-ppm levels [ 120 ]. Further, nanoparticles and nanostructures offer increased surface area as a percentage of overall sensor volume for increased sensitivity and lower detection limits.…”

Section: Sensing Technologies For Ethylenementioning

confidence: 99%

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

Wilson

2021

Sensors

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Farm-to-table operations produce, transport, and deliver produce to consumers in very different ways than conventional, corporate-scale agriculture operations. As a result, the time it takes to get a freshly picked fruit to the consumer is relatively short and the expectations of the consumer for freshness and quality are high. Since many of these operations involve small farms and small businesses, resources to deploy sensors and instruments for monitoring quality are scarce compared to larger operations. Within stringent power, cost, and size constraints, this article analyzes chemical sensor technologies suitable for monitoring fruit quality from the point of harvest to consumption in farm-to-table operations. Approaches to measuring sweetness (sugar content), acidity (pH), and ethylene gas are emphasized. Not surprisingly, many instruments developed for laboratory use or larger-scale operations are not suitable for farm-to-table operations. However, there are many opportunities still available to adapt pH, sugar, and ethylene sensing to the unique needs of localized farm-to-table operations that can help these operations survive and expand well into the future.

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“…Ethylene sensors based on chemoresistive [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], optical (NDIR) [19][20][21][22], colorimetric [23][24][25], luminescence [26], fluorescence [27], piezoelectric [28][29][30], and electrochemical [31][32][33][34] principles have been developed. Each such principle has its own advantages and limitations, the comparison of which can be found in several review articles [35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical Amperometric Ethylene Sensor with Solid Polymer Electrolyte Based on Ionic Liquid

Kuberský

Navrátil

Syrový

et al. 2021

Sensors

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An electrochemical amperometric ethylene sensor with solid polymer electrolyte (SPE) and semi-planar three electrode topology involving a working, pseudoreference, and counter electrode is presented. The polymer electrolyte is based on the ionic liquid 1-butyl 3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMIM][NTf2] immobilized in a poly(vinylidene fluoride) matrix. An innovative aerosol-jet printing technique was used to deposit the gold working electrode (WE) on the solid polymer electrolyte layer to make a unique electrochemical active SPE/WE interface. The analyte, gaseous ethylene, was detected by oxidation at 800 mV vs. the platinum pseudoreference electrode. The sensor parameters such as sensitivity, response/recovery time, repeatability, hysteresis, and limits of detection and quantification were determined and their relation to the morphology and microstructure of the SPE/WE interface examined. The use of additive printing techniques for sensor preparation demonstrates the potential of polymer electrolytes with respect to the mass production of printed electrochemical gas sensors.

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Highly sensitive and selective ethylene gas sensors based on CeOx-SnO2 nanocomposites prepared by a Co-precipitation method

Cited by 34 publications

References 28 publications

Covalent Immobilization of Polyaniline Doped with Ag+ or Cu2+ on Carbon Nanotubes for Ethylene Chemical Sensing

Covalent Immobilization of Polyaniline Doped with Ag+ or Cu2+ on Carbon Nanotubes for Ethylene Chemical Sensing

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

An Electrochemical Amperometric Ethylene Sensor with Solid Polymer Electrolyte Based on Ionic Liquid

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