Aldehyde detection by ZnO tetrapod-based gas sensors

被引：82
作者：
Calestani, Davide [1 ]
Mosca, Roberto [1 ]
Zanichelli, Massimiliano [1 ]
Villani, Marco [1 ]
Zappettini, Andrea [1 ]
机构：
[1] IMEM CNR, Parma, Italy
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 39期
关键词：
SENSING PROPERTIES; MOLYBDENUM TRIOXIDE; ACETALDEHYDE; CATALUMINESCENCE; ETHANOL; FABRICATION; PROPERTY; QUALITY; FILMS;
D O I：
10.1039/c1jm12561c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：15532 / 15536
页数：5
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