Gas sensitivity of hybrid nanostructured films based on polyoxometalates

Ivanova, O.M.; Krutovertsev, S. A.; Krutovertseva, L.; Tarasova, A.

doi:10.1016/j.proeng.2010.09.064

Cited by 1 publication

(5 citation statements)

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“…In 2010, Ivanova et al prepared a sensor based on a nano-SiO x film based on Dawson POMs as an activator. 32 They introduced various synthetic POMs directly into the SiO x film and then obtained a sensitive film with a high specific surface area at room temperature. The thin film has a highly developed nanoscale pore, and the selectivity and sensitivity of NH 3 and N 2 H 2 are better (Figure 6).…”

Section: Performance Of Inorganic Semiconductormentioning

confidence: 99%

“…The BiVO 4 /PW 12 nanocomposite device can exhibit higher gas sensitivity at room temperature. In 2010, Ivanova et al prepared a sensor based on a nano-SiO x film based on Dawson POMs as an activator . They introduced various synthetic POMs directly into the SiO x film and then obtained a sensitive film with a high specific surface area at room temperature.…”

Section: Poms For Enhancing the Sensing Performance Of Inorganic Semi...mentioning

confidence: 99%

“…(b) Typical conductivity dependence of the films SiO x / Mn 3 P 2 Mo 18 O 62 (50 wt % mass) on gas concentration: 1, C 2 H 5 ) 3 N; 2, NH 3 ; 3, H 2 NC 2 H 4 OH. Reprinted with permission from ref . Copyright 2010 Elsevier.…”

Section: Poms For Enhancing the Sensing Performance Of Inorganic Semi...mentioning

confidence: 99%

“…Li et al introduced POMs into TiO 2 via a Ti(OC 4 H 9 ) 4 hydrolysis sol–gel method . Ivanova et al prepared modified silica films by sol–gel method based on tetraethyl orthosilicate and POMs Solvent evaporation method means to evaporate the solvent in the solution and use calcination technology to prepare the required materials.…”

Section: Immobilization Procedures Of Pomsmentioning

confidence: 99%

Section: Immobilization Procedures Of Pomsmentioning

confidence: 99%

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Application of Polyoxometalates in Chemiresistive Gas Sensors: A Review

Song

Wang

2022

ACS Sens.

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Polyoxometalates (POMs) are a series of molecular metal compounds based on W and Mo elements, exhibiting excellent physical and chemical properties. POMs have been widely used in the fields of photoelectric materials, catalytic materials, and coordination chemistry. In recent years, POMs have emerged in the field of chemiresistive gas sensors. They can work as electron acceptors and improve the gas-sensing performance of traditional sensing materials by means of capturing electrons from semiconductors, separating electrons produced by light excitation or thermal excitation and delaying the recombination of electrons and holes. So far, the highest sensing sensitivity response of POMs-based chemiresistive gas sensor is 231 to 1 ppm NO2 gas. In this review, an overview is investigated about how POMs have evolved as sensing materials in gas sensors. First, some POMs and POMs-based sensing materials in recent years are introduced and classified. After that, brief analyses for each kind of sensing materials are provided. Then we compare the reported POMs-based sensors in different sensing parameters. Finally, the future outlooks are discussed on the basis of the current developments. This work is the first comprehensive overview of POMs-based chemiresistive gas sensors. This work can provide valuable information for developing high-performance POMs-based gas sensors.

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Section: Performance Of Inorganic Semiconductormentioning

confidence: 99%

Section: Poms For Enhancing the Sensing Performance Of Inorganic Semi...mentioning

confidence: 99%

Section: Poms For Enhancing the Sensing Performance Of Inorganic Semi...mentioning

confidence: 99%

Section: Immobilization Procedures Of Pomsmentioning

confidence: 99%

Section: Immobilization Procedures Of Pomsmentioning

confidence: 99%

See 3 more Smart Citations