journal article·2013-10

Preparation and LPG-gas sensing characteristics of p-type semiconducting LaNbO4 ceramic material

C. Balamurugan, D.-W. Lee, A. Subramania

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Abstract

Lanthanam niobate (LaNbO4) nanopowder was synthesized by a low temperature solution-based process. Thermal analysis TG/DTA, XRD, SEM, TEM, EDX, impedance analysis and Brunauer-Emmett-Teller (BET) were used to characterize the precursor and the calcined LaNbO4 powders. The gas sensing behavior of LaNbO4 nanopowder was studied with gases like liquid petroleum gas (LPG), ammonia (NH3), and ethanol (C2H5OH), as a function of various controlling factors like operating temperature, concentration of the gas and response time. It revealed that LaNbO4 is a very promising material for the detection of LPG (80%) and NH3 (59%) at relatively lower operating temperatures.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Analytical Chemistry and Sensors · Acoustic Wave Resonator Technologies

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References (14)

Show source-provided references
1. Thermal and mechanical properties of LaNbO4-based ceramics10.1016/j.ceramint.2009.03.041 ↗
2. Structure and luminescent properties of LaNbO4 synthesized by sol–gel process10.1016/j.jlumin.2007.01.005 ↗
3. Proton conduction in rare earth ortho-niobates and orthotantalates10.1038/nmat1591 ↗
4. High-temperature proton conductivity in acceptor-doped LaNbO410.1016/j.ssi.2006.05.011 ↗
5. Chemical compatibility of proton conducting LaNbO4 electrolyte with potential oxide cathodes10.1016/j.jeurceramsoc.2009.03.034 ↗
6. High-temperature proton-conducting LaNbO4-based materials: Powder synthesis by spray pyrolysis10.1111/j.1551-2916.2007.01904.x ↗
7. Chemical synthesis of fine powder of lead magnesium niobate using niobium tartarate complex10.1016/S0167-577X(00)00134-8 ↗
8. Sol–gel synthesized semiconducting LaCo0.8Fe0.2O3-based powder for thick film NH3 gas sensor10.1016/j.talanta.2009.01.030 ↗
9. PCPDFWIN Version 2.4, JCPDS-ICDD (2003).
10. Nb 3d and O 1s core levels and chemical bonding in niobates10.1016/j.elspec.2004.10.003 ↗
11. Al-doped zinc oxide thin films for liquid petroleum gas (LPG) sensors10.1016/j.snb.2008.02.014 ↗
12. Studies on the gas sensing behaviour of nanosized CuNb2O6 towards ammonia, hydrogen and liquefied petroleum gas10.1016/j.snb.2008.03.004 ↗
13. Gas sensing behavior of nanostructured sensors based on tin oxide synthesized with different methods10.1016/j.mseb.2007.04.011 ↗
14. Surface customization of SnO2 thick films using RuO2 as a surfactant for the LPG response10.1016/j.snb.2006.05.014 ↗