Hybrid materials based on pyrene-substituted metallo phthalocyanines as sensing layers for ammonia detection: Effect of the number of pyrene substituents

Ivanova, V. N.; Klyamer, Darya; Краснов, Павел О.; Kaya, Esra Nur; Kulu, İrem; Kostakoğlu, Sinem Tuncel; Durmuş, Mahmut; Basova, Tamara V.

doi:10.1016/j.snb.2022.132843

Cited by 15 publications

(6 citation statements)

References 68 publications

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“…LOD of the prepared composite Chs-Sal/β-CD/ZnO NPs was 0.12 ppb surpassing the threshold value for NH 3 gas indicated by the National Institute for Occupational Safety and Health (NIOSH) (total weight average (TWA) permissible ammonia exposure limit is 25 ppm and the short-term exposure limit (ST) (for 15 min) is 35 ppm) 67 . Furthermore, this LOD is less than other NH 3 sensors such as 0.4 ppm 64 , 11 ppm 68 , and 0.78 ppb 69 , respectively. The limit of quantification (LOQ) was calculated using 10(RMS noise /slope) 70 and was 0.4 ppb which is lower than that reported in other studies 71 – 73 .…”

Section: Resultsmentioning

confidence: 82%

“…Besides, the selectivity of the Chs-Sal/β-CD/ZnO NPs composite sensor has also been studied at room temperature upon exposure to various 100 ppm gases/vapors (NH 3 , chloroform, ethanol, and methanol) as depicted in Fig. 7 e. The results indicate that the Chs-Sal/β-CD/ZnO NPs composite sensor exhibits the highest response when exposed to 100 ppm NH 3 which may to be due to its highest electron-donating ability compared to the other analytes 64 . Furthermore, the selective response of the composite toward NH 3 might be related to ZnO (transition metal oxide) which has more than one oxidation state and d 10 electronic configuration that could retain cations with its filled orbital and be reduced when it reacted with reducing analyte like NH 3 to generate free electrons at RT 65 .…”

Section: Resultsmentioning

confidence: 98%

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One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing

Saeed,

Taha,

Dardeer

et al. 2024

Sci Rep

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Chitosan (Chs)-salicylaldehyde (Sal) polymer derivatives were formed via the reaction of Chs-Sal with zinc oxide nanoparticles (ZnO NPs) and beta-cyclodextrin (β-CD). These polymers were synthesized through inclusion with β-CD and doping with ZnO NPs to give pseudopolyrotaxane and Chs-Sal/ZnO NPs composite, respectively, for low-temperature detection and sensing of NH3 vapors as great significance in environmental control and human health. Additionally, the polymer (Chs-Sal/β-CD/ZnO NPs) was prepared via the insertion of generated composite (Chs-Sal/ZnO NPs) through β-cyclodextrin ring. The structural and morphological characterizations of the synthesized derivatives were confirmed by utilizing FTIR, XRD and, SEM, respectively. Also, the optical properties and thermal gravimetric analysis (TGA) of the synthesized polymers were explored. The obtained results confirmed that using β-CD or ZnO NPs for modification of polymer (Chs-Sal) dramatically enhanced thermal stability and optical features of the synthesized polymers. Investigations on the NH3-sensing properties of Chs-Sal/β-CD/ZnO NPs composite were carried out at concentrations down to 10 ppm and good response and recovery times (650 s and 350 s, respectively) at room temperature (RT) and indicated that modification by β-CD and doping with ZnO NPs effectively improves the NH3-sensing response of Chs-Sal from 712 to 6192 using Chs-Sal/β-CD/ZnO NPs, respectively, with low LOD and LOQ of 0.12 and 0.4 ppb, respectively.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 98%

One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing

Saeed,

Taha,

Dardeer

et al. 2024

Sci Rep

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“…Compared with sensors already presented in the literature for the detection of ammonia using a hybrid layer, the presented sensors have fairly similar, if not better, characteristics in terms of response time (a few seconds, depending on the concentration), but this work has not shown that it can quantify or detect ammonia below the concentration that many sensors can detect today [48][49][50][51][52][53]. This is mainly due to the maturity of the original transduction used in this paper.…”

Section: Gas Sensing Resultsmentioning

confidence: 89%

Microwave Gas Sensors Based on Electrodeposited Polypyrrole - Nickel Phthalocyanine Hybrid Films

Pavel

Lasserre

Rossignol

et al. 2023

Preprint

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“…Compared with sensors already presented in the literature for the detection of ammonia using a hybrid layer, the presented sensors have fairly similar, if not better, characteristics in terms of response time (a few seconds, depending on the concentration), but this work has not shown that it can quantify or detect ammonia below the concentration that many sensors can detect today [ 48 , 49 , 50 , 51 , 52 , 53 ]. This is mainly due to the maturity of the original transduction used in this paper.…”

Section: Resultsmentioning

confidence: 92%

Microwave Gas Sensors Based on Electrodeposited Polypyrrole–Nickel Phthalocyanine Hybrid Films

Pavel

Lasserre

Simon

et al. 2023

Sensors

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Previous studies have shown that the incorporation of sulfonated metallophthalocyanines into sensitive sensor materials can improve electron transfer and thus species detection. Herein, we propose a simple and easy alternative to the use of generally expensive sulfonated phthalocyanines by electropolymerizing polypyrrole together with nickel phthalocyanine in the presence of an anionic surfactant. The addition of the surfactant not only helps the incorporation of the water-insoluble pigment into the polypyrrole film, but the obtained structure has increased hydrophobicity, which is a key property for developing efficient gas sensors with low sensitivity to water. The obtained results show the effectiveness of the materials tested for the detection of ammonia in the range of 100 to 400 ppm. It is shown by comparing the microwave sensor responses that the film without nickel phthalocyanine (hydrophilic) produces greater variations than the film with nickel phthalocyanine (hydrophobic). These results are consistent with the expected results since the hydrophobic film is not very sensitive to residual ambient water and therefore does not interfere with the microwave response. However, although this excess response is usually a handicap, as it is a source of drift, in these experiments the microwave response shows great stability in both cases.

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Hybrid materials based on pyrene-substituted metallo phthalocyanines as sensing layers for ammonia detection: Effect of the number of pyrene substituents

Cited by 15 publications

References 68 publications

One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing

One-pot synthesis of novel chitosan-salicylaldehyde polymer composites for ammonia sensing

Microwave Gas Sensors Based on Electrodeposited Polypyrrole - Nickel Phthalocyanine Hybrid Films

Microwave Gas Sensors Based on Electrodeposited Polypyrrole–Nickel Phthalocyanine Hybrid Films

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