Topic
Vapours
About: Vapours is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 15022 citations.
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TL;DR: In this paper, the application of four different conducting polymers (polypyrrole, poly-N-methylpyrrone, polycarboxyindole and polyaniline) as sensors for organic vapours has been investigated.
234 citations
TL;DR: In this paper, the sensitivity characteristics of ZnO-based semi-conductor gas sensors to ethanol vapours have been investigated with lanthanum oxide and palladium, and it has been confirmed that these are highly sensitive and selective for ethanol vapour at 175°C in air atmosphere.
229 citations
TL;DR: In this article, a Pd-polyaniline nanocomposite was synthesized by oxidative polymerization of a 0.1 M aniline solution containing palladium nanoparticles.
Abstract: Palladium nanoparticles were obtained by a reflux method. A Pd–polyaniline nanocomposite was synthesized by oxidative polymerization of a 0.1 M aniline (stabilizer) solution containing palladium nanoparticles. The synthesized nanocomposite was subjected to different aliphatic alcohol vapours such as methanol, ethanol and isopropanol. The results showed that the nanocomposite was highly selective and sensitive to methanol vapours. The sensor responded rapidly and reversibly in the presence of methanol vapours. The selectivity of the nanocomposite was further investigated by exposing it to mixtures of methanol–ethanol and methanol–isopropanol. The nanocomposite is found to exhibit exactly identical response to that for pure methanol except for the response time. The sensing mechanism has been explained on the basis of FT-IR spectroscopy.
214 citations
TL;DR: In this paper, a modified Dubinin-Astakhov equation is presented which can describe the adsorption of condensible vapours on porous adsorbents, and can be used to correlate adsorptions of types I, IV and V according to BDDT classification.
212 citations
TL;DR: In this paper, the effect of zinc oxide on pyrolysis vapours of pine sawdust was studied in micro and bench scales with zinc oxide catalyst and the results indicated an improvement in the stability of the ZnO-treated oil.
173 citations