Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 119, Issue 1, Pages 52-56Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2005.11.050
Keywords
ZnO; Fe2O3; nanorods; gas sensor; combustible gas
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Fe2O3/ZnO core/shell nanorods were prepared by a solution phase controlled hydrolysis method, and were characterized by XRD, BET and TEM techniques. The surface area of these core/shell nanorods is higher than that of bulk ZnO sensor materials, and in our experiments, the resultant Fe2O3/ZnO gas sensor exhibited a high response, good stability and a short response/recovery time in the detection of low concentrations of various combustible gases. The response/recovery time was less than 20 s, and the response decreased slightly after 4 months. (c) 2005 Elsevier B.V. All rights reserved.
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