Hydrogen sulfide detection by nanocrystal PT doped TiO2-based gas sensors

Li, Hongming; Hsu, T.Y.; Tung, Chiun-Yen; Hsu, Chi-Ming

doi:10.1016/0965-9773(95)00231-6

Cited by 30 publications

(9 citation statements)

References 8 publications

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“…Sensitivity and selectivity are very important to gas sensors, so sometimes we need to use other treatments to improve the performance of gas sensors that are poor in sensitivity or selectivity. There are many ways, such as annealing, doping and plasma treatment, to improve the performance of a gas sensor, among which doping is a very facile and effective way [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Chen

Liang

et al. 2013

Sensors and Actuators B: Chemical

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Section: Introductionmentioning

confidence: 99%

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Chen

Liang

et al. 2013

Sensors and Actuators B: Chemical

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“…T itanium dioxide nanoparticles are used for a wide range of applications such as in photocatalysts, 1 photovoltaic cells, 2 batteries, 3 photochromic and electrochromic devices, 4 and gas sensors 5 . Submicrometer‐ and micrometer‐sized coarse TiO 2 powders have been commercially produced by the so‐called sulfate and chloride processes, in which titanyl sulfate or titanium chloride is formed from titanium ores and is then oxidized by heating in oxygen.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Dispersion of TiO₂Nanoparticles in Aqueous Suspension

Sato

Kamiya

et al. 2008

Journal of the American Ceramic Society

154

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Aggregation and dispersion behavior of nanometer and submicrometer scale TiO 2 particles in aqueous suspension were investigated using three kinds of mechanical dispersion methods: ultrasonic irradiation, milling with 5-mm-diameter balls, and milling with 50 lm beads. Polyacrylic acids with molecular weights ranging from 1200 to 30 000 g/mol were used as a dispersant, and the molecular weight for each dispersion condition was optimized. Viscosities and aggregate sizes of the submicrometer powder suspensions were not appreciably changed in the ultrasonic irradiation and 5-mm-ball milling trials. In contrast, in the trials in which nanoparticle suspension was used, ultrasonic irradiation produced better results than 5-mm-ball milling. Use of ultrasonication enabled dispersion of aggregates to primary particle sizes, which was determined based on the specific surface area of the starting TiO 2 powders, even for relatively high solid content suspensions of up to 15 vol%. Fiftymicrometer-bead milling was also able to disperse aggregates to the same sizes as the ultrasonic irradiation method, but 50-lmbead milling can be used only in relatively low solid content suspensions. It was concluded that the ultrasonic dispersion method was a useful way to prepare concentrated and highly dispersed nanoparticle suspensions.

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“…Several different metal oxide semiconductors can be used as a gas sensing material such as WO 3 [1,2], SnO 2 [3][4][5], TiO 2 [6] and others [7].…”

Section: Introductionmentioning

confidence: 99%

H2S sensing characteristics of La0.7Pb0.3Fe0.4Ni0.6O3 based nanocrystalline thick film gas sensor

Jagtap¹,

Kadu²,

Sangawar

et al. 2008

Sensors and Actuators B: Chemical

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Hydrogen sulfide detection by nanocrystal PT doped TiO2-based gas sensors

Cited by 30 publications

References 8 publications

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Ultrasonic Dispersion of TiO₂Nanoparticles in Aqueous Suspension

H2S sensing characteristics of La0.7Pb0.3Fe0.4Ni0.6O3 based nanocrystalline thick film gas sensor

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Hydrogen sulfide detection by nanocrystal PT doped TiO2-based gas sensors

Cited by 30 publications

References 8 publications

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Ultrasonic Dispersion of TiO2Nanoparticles in Aqueous Suspension

H2S sensing characteristics of La0.7Pb0.3Fe0.4Ni0.6O3 based nanocrystalline thick film gas sensor

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Product

Resources

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Ultrasonic Dispersion of TiO₂Nanoparticles in Aqueous Suspension