| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 740761 | Sensors and Actuators B: Chemical | 2011 | 6 Pages |
Abstract
In this paper, we report the properties of the nano-crystalline oxides LnFeO3 (Ln = La, Nd and Sm) synthesized by sol–gel citrate technique. The crystalline structure of the oxides was analyzed by X-ray diffraction (XRD). The surface morphologies of the LnFeO3 thick-films on Al2O3 substrates were measured by scanning electron microscope (SEM). The gas-sensing characteristics of the oxides LnFeO3 were investigated in methane (CH4), propane (C3H8) and n-hexane (C6H14) gases. All LnFeO3-based sensors exhibited good HC sensing characteristics. The very high n-hexane sensitivities of NdFeO3 and SmFeO3-based sensors were discussed in terms of an important role of rare earth elements.
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Authors
Ho Truong Giang, Ha Thai Duy, Pham Quang Ngan, Giang Hong Thai, Do Thi Anh Thu, Do Thi Thu, Nguyen Ngoc Toan,