A novel gas sensor of formaldehyde and ammonia based on cross sensitivity of cataluminescence on nano-Ti 3 SnLa 2 O 11

Fan, Huizhen; Cheng, Yanling; Gu, Chunxiu; Zhou, Kaowen

doi:10.1016/j.snb.2015.10.027

Cited by 27 publications

(11 citation statements)

References 47 publications

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“…About 80% of commercially produced ammonia (NH 3 ) is used in fertilizers, with the remainder used in a variety of applications such as plastics, synthetic fibers and resins, pharmaceuticals, explosives, refrigeration, and household cleaners [1]. Ammonia is the most common indoor air pollutant; it is a great pollution source to environment and harmful to human health [2]. Ammonia is known to be potentially associated with chronic diseases such as asthma, severe respiratory tract inflammation and lung diseases [3,4].…”

Section: Introductionmentioning

confidence: 99%

Preparation of single walled carbon nanotube-pyrene 3D hybrid nanomaterial and its sensor response to ammonia

Şenocak

Göl

Basova

et al. 2018

Sensors and Actuators B: Chemical

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In this work, the structural features and sensor response toward ammonia of a three dimensional (3D) SWCNTs material covalently functionalised with 1,6-diethynylpyrene were studied. The target SWCNTs hybrid material was prepared by the reaction of azido substituted SWCNTs with the 1,6-diethynylpyrene containing double terminal alkyne groups via the azide-alkyne Huisgen cycloaddition (Click) reaction. The structure of the 1,6-diethynylpyrene compound was determined by different spectroscopic methods such as FT-IR, 1 H-NMR, MALDI-TOF mass, fluorescence and UV-Visible, while its SWCNT-Pyrene 3D hybrid material was characterized by FT-IR, Raman, UV-Visible spectroscopies and thermogravimetric analysis. The morphology of the hybrid films was investigated by scanning electron microscope (SEM). The sensing performance of the SWCNT-Pyrene 3D hybrid material was studied against low-concentrations of NH 3 in the range of 0.1-40 ppm by measuring changes in the films' conductivity at different levels of relative humidity. The reversible electrical sensor response toward ammonia was observed both in the case of SWCNT and SWCNT-Pyrene 3D hybrid films however the response values of SWCNT-Pyrene 3D hybrid film were higher than those of SWCNT.

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Section: Introductionmentioning

confidence: 99%

Preparation of single walled carbon nanotube-pyrene 3D hybrid nanomaterial and its sensor response to ammonia

Şenocak

Göl

Basova

et al. 2018

Sensors and Actuators B: Chemical

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“…The loading of nano-Pd/ZnNi3Al2O7, the adjustment of working temperature, the introduction of measured gas sample and the recordin g of CTL signals can refer to our previous work [29][30][31].…”

Section: Measurement Of Ctl Signalsmentioning

confidence: 99%

“…CTL, a kind of chemiluminescence (CL) emitted from heterogeneous catalytic oxidation reactions on gas-solid interface, has been considered as a promising energy transduction mechanism for fabricating gas sensors [4]. In recent years, a series of CTL sensing applications have been attempted to develop for diethyl ether [5][6][7][8][9][10][11][12][13][14] and many other molecules [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] at different laboratories. When using the composites to make diethyl ether gas sensor, high working temperature becomes a main obstacle.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

Zhang¹,

Yang²,

Wang³

et al. 2020

Preprint

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Pd doped ZnNi3Al2O7 composite was synthesized by sol-gel and impregnation method. The EDS spectrum and TEM image showed that Pd atoms are uniformly distributed on the surface of ZnNi3Al2O7 with a particle size of less than 50 nm. A sensitive diethyl ether gas sensor based on cataluminescence on the composite at lower temperature than 200℃ was reported. There is a good linear relationship between the luminescence intensity and the concentration of diethyl ether in the range of 0.1-75 mg/m3. The detection limit (3σ) is 0.06 mg/m3. The working conditions optimized by response surface methodology were analytical wavelength of 548.86 nm, reaction temperature of 109.18℃ and carrier gas velocity of 125.88 ml/min, respectively. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi parameter processes.

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“…Therefore, the detection of formaldehyde cannot be neglected. At present, the detection methods of formaldehyde include spectrophotometry [5][6][7], gas chromatography [8], electrochemical methods [9,10], and semiconductor gas sensors. Compared with semiconductor gas sensors, the above detection methods have a large equipment size and are costly and complex to operate, so semiconductor gas sensors have attracted extensive attention of researchers.…”

Section: Introductionmentioning

confidence: 99%

Strategies for Improving the Sensing Performance of Semiconductor Gas Sensors for High-Performance Formaldehyde Detection: A Review

2021

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Formaldehyde is a poisonous and harmful gas, which is ubiquitous in our daily life. Long-term exposure to formaldehyde harms human body functions; therefore, it is urgent to fabricate sensors for the real-time monitoring of formaldehyde concentrations. Metal oxide semiconductor (MOS) gas sensors is favored by researchers as a result of their low cost, simple operation and portability. In this paper, the mechanism of formaldehyde detection by gas sensors is introduced, and then the ways of ameliorating the response of gas sensors for formaldehyde detection in recent years are summarized. These methods include the control of the microstructure and morphology of sensing materials, the doping modification of matrix materials, the development of new semiconductor sensing materials, the outfield control strategy and the construction of the filter membrane. These five methods will provide a good prerequisite for the preparation of better performing formaldehyde gas sensors.

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A novel gas sensor of formaldehyde and ammonia based on cross sensitivity of cataluminescence on nano-Ti 3 SnLa 2 O 11

Cited by 27 publications

References 47 publications

Preparation of single walled carbon nanotube-pyrene 3D hybrid nanomaterial and its sensor response to ammonia

Preparation of single walled carbon nanotube-pyrene 3D hybrid nanomaterial and its sensor response to ammonia

Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

Strategies for Improving the Sensing Performance of Semiconductor Gas Sensors for High-Performance Formaldehyde Detection: A Review

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