Room temperature synthesis of gamma-Fe2O3 by sonochemical route and its response towards butane
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Room temperature synthesis of gamma-Fe2O3 by sonochemical route and its response towards butane
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| Creator |
Ray, I.
Chakraborty, S. Chowdhury, A. Majumdar, S. Prakash, A. Pyare, Ram Sen, A. |
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| Subject |
Physical Properties
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| Description |
Nanocrystalline gamma iron oxide (gamma-Fe2O3) has been synthesized at room temperature through sonication-assisted precipitation technique. The key in obtaining gamma-Fe2O3 at room temperature lies in exploiting high-power ultrasound (600W). The gas-sensing properties to n-butane of pure gamma-Fe2O3 were investigated by studying the electrical properties of the sensor elements fabricated from the synthesized powder. The maximum response (similar to 90%) of the sensor to 1000 ppm n-butane at 300 degrees C can be explained on the basis of catalytic activity of the nanocrystallites. The response and recovery time of the sensor to 1000 ppm n-butane were less than 12 s and 120 s, respectively. (c) 2008 Published by Elsevier B.V.
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| Publisher |
ELSEVIER SCIENCE SA
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| Date |
2008-03
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/401/1/Sensor_Actuator_B_130_(2008)_882%E2%80%93888.pdf
Ray, I. and Chakraborty, S. and Chowdhury, A. and Majumdar, S. and Prakash, A. and Pyare, Ram and Sen, A. (2008) Room temperature synthesis of gamma-Fe2O3 by sonochemical route and its response towards butane. SENSORS AND ACTUATORS B-CHEMICAL, 130 (2). pp. 882-888. ISSN 0925-4005 |
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| Relation |
http://cgcri.csircentral.net/401/
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