Development of an ammonia gas sensor

Bendahan, Marc; Lauque, Pascal; Seguin, Jean-Luc; Aguir, Khalifa; Knauth, Philippe

doi:10.1016/s0925-4005(03)00408-8

Cited by 53 publications

(41 citation statements)

References 14 publications

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“…Copper(I) bromides have been used in organic synthesis [1,2], batteries [3], gas sensors [4][5][6] and lasers [7][8]. Several methods have been developed to grow copper(I) bromide thin films based on vapor-phase techniques, such as radio frequency magnetron sputtering [9] and molecular beam epitaxy [10,11].…”

Section: Introductionmentioning

confidence: 99%

Growth and characterization of highly oriented CuBr thin films through room temperature electrochemical route

Kang

Yong

et al. 2008

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Growth and characterization of highly oriented CuBr thin films through room temperature electrochemical route

Kang

Yong

et al. 2008

Electrochimica Acta

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“…The high volatility of NH 4 OH influences the quick response and fast recovery of the sensor. [18][19][20][21][22][23][24] …”

Section: Gas Sensing Mechanismmentioning

confidence: 99%

Nanostructured ZrO<sub>2</sub> Thin Films Deposited by Spray Pyrolysis Techniques for Ammonia Gas Sensing Application

Deshmukh

Bari²

2015

ILCPA

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ABSTRACT. The spray pyrolysis deposition technique has number of advantages to produce advance nanostructured oxide films. The film surface morphology and structure depends on the precursor and doping solution and solvents used with their optimized parameters. The surface to volume ratio is achieved is beneficial to gas sensing. Therefore in this paper we report the nanostructured ZrO 2 thin films was prepared using spray pyrolysis technique for ammonia gas sensing. There is various precursors such as Zirconium acetylacetonate, Zirconium nitrate, Zirconium tetra chloride etc. In spite of them, the Zirconium oxychloride octohydrate (0.05 M) was chosen as precursor solution and was prepared by dissolving in pure distilled water (Solvent). The films were deposited on heated glass substrate at 350• C and were annealed at 500 • C for 1 hrs. It was characterized using XRD, FESEM, and TEM technique to examine crystal structure, surface morphology and microstructure properties. The average crystallite and grain size observed to be nanostructured in nature. The different test target gas performances were tested with various concentrations at different operating temperature. The films sprayed for 20 min with optimized spray parameter were observed to be most sensitive (S=58.5) to NH 3 for 500 ppm at 150 0 C. The film thickness dependence parameters: FWHM (0.02678 radians) for peak 111, Inter-planer distance (d=0.2958 nm), lattice parameters Inter-atomic spacing ( a=0.511 nm), atomic volume (a 3 = 133Å 3 ),micro strain (2.8 to 0.76 x 10 -2 ), crystallite size (4-5nm) average grain size (32nm), dislocation density (1.73 x10 15 lines/cm 2 ), texture coefficient (>1), specific surface area(31 m 2 /g), activation energy and band gap were studied. The sensor shows quick response (4 s) and fast recovery (10 s). Reported results are discussed and interpreted

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“…6 Sensors need to be fast, specific, reliable, sensitive, low cost and have the possibility for miniaturisation. 2,6,7 For such sensor designs, electrochemical strategies are advantageous due to their rapid response and their inherent low cost but high sensitivity. [8][9][10][11] Generally in the above sensor designs, including those for ammonia, the electrolyte employed is water based.…”

Section: 2mentioning

confidence: 99%

Determination of Ammonia Based on the Electrochemical Oxidation of N,N′-Diphenyl-1,4-phenylenediamine in Propylene Carbonate

Compton

2007

ANAL. SCI.

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Development of an ammonia gas sensor

Cited by 53 publications

References 14 publications

Growth and characterization of highly oriented CuBr thin films through room temperature electrochemical route

Growth and characterization of highly oriented CuBr thin films through room temperature electrochemical route

Nanostructured ZrO<sub>2</sub> Thin Films Deposited by Spray Pyrolysis Techniques for Ammonia Gas Sensing Application

Determination of Ammonia Based on the Electrochemical Oxidation of N,N′-Diphenyl-1,4-phenylenediamine in Propylene Carbonate

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