Article ID Journal Published Year Pages File Type
862540 Procedia Engineering 2011 4 Pages PDF
Abstract

We report the development of a gas preconcentrator based on carbon nanotubes for an efficient detection of benzene. The carbon nanotubes are spray coated on the preconcentrating support and their concentration factor is being determined. The results confirmed the adsorption of benzene in different tested CNT samples with different degrees of affinity. Among these materials, MWCNTs fabricated by Arc discharge method provided a sharp desorption peak at 250 °C with a practical concentration factor of 70.

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Physical Sciences and Engineering Engineering Engineering (General)