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Issue 39, 2011
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Aldehyde detection by ZnO tetrapod-based gas sensors

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Abstract

Zinc oxide (ZnO) tetrapods have been synthesized and prototypal gas sensors for volatile organic compounds (VOCs) have been realized with this sensing nanomaterial. Sensor characterization has been focused on aldehydes, such as acetaldehyde (or ethanal) and propionaldehyde (or propanal), whose detection at ppb levels is extremely important for monitoring environmental, domestic and food pollution, as well as for some sickness diagnosis and other medical applications. The response of gas sensor prototypes has been measured as a function of concentration, temperature, relative humidity and time. Good response values at ppb levels and some peculiar behaviours have been pointed out.

Graphical abstract: Aldehyde detection by ZnO tetrapod-based gas sensors

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Publication details

The article was received on 06 Jun 2011, accepted on 29 Jul 2011 and first published on 25 Aug 2011


Article type: Paper
DOI: 10.1039/C1JM12561C
Citation: J. Mater. Chem., 2011,21, 15532-15536
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    Aldehyde detection by ZnO tetrapod-based gas sensors

    D. Calestani, R. Mosca, M. Zanichelli, M. Villani and A. Zappettini, J. Mater. Chem., 2011, 21, 15532
    DOI: 10.1039/C1JM12561C

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