journal article·2012-01

Carbon dioxide sensitivity of La-doped thick film tin oxide gas sensor

M.Y. Kim, Y.N. Choi, J.M. Bae, T.S. Oh

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Abstract

Abstract The CO 2 sensitivity of a La-doped SnO 2 thick film was characterized with variation of the La 2 O 3 content up to 4.5 mol%. Effects of mechanical milling of SnO 2 powders on the CO 2 sensitivity of a SnO 2 thick film sensor were also studied. When exposed to 1000 ppm of CO 2 , the sensitivity of a SnO 2 thick film sensor was improved from 1.14 to 1.52 with increasing the La 2 O 3 doping concentration from 0 mol% to 2.2 mol%. Enhanced sensitivities of 1.45–1.51 were obtained for the thick film sensors processed with mechanically milled SnO 2 powders.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · ZnO doping and properties · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (12)

Show source-provided references
1. Toward innovations of gas sensor technology10.1016/j.snb.2004.12.075 ↗
2. Carbon dioxide (CO2) sensors for the agri-food industry – a review10.1007/s11947-008-0154-y ↗
3. Study of the CO2 and humidity interface in La doped tin oxide CO2 gas sensor10.1016/S0925-4005(03)00461-1 ↗
4. Gas detection with SnO2 sensors modified by zeolite films10.1016/j.snb.2006.12.009 ↗
5. Elaboration and characterization of tin oxide–lanthanum oxide mixed layers prepared by the electrostatic spray pyrolysis technique10.1016/S0925-4005(01)00797-3 ↗
6. CO2-sensing characteristics of SnO2 thick film by coating lanthanum oxide10.1016/S0925-4005(99)00305-6 ↗
7. A novel thick film conductive type CO2 sensor10.1016/S0925-4005(96)01847-3 ↗
8. Nanoparticle engineering for gas sensor optimisation: improved sol–gel fabricated nanocrystalline SnO2 thick film gas sensor for NO2 detection by calcination, catalytic metal introduction and grinding treatments10.1016/S0925-4005(99)00258-0 ↗
9. Mechanochemical milling-induced reactions between gases and sulfide minerals: II. Reactions of CO2 with arsenopyrite, pyrrhotite and pyrite10.1016/S0925-8388(00)01203-2 ↗
10. Thermoelectric properties of p-type (Bi,Sb)2Te3 alloys fabricated by the hot pressing method10.1007/BF03026068 ↗
11. Study on the characteristics of Ag doped CuO–BaTiO3 CO2 sensors10.3390/s20900366 ↗
12. La2O3-loaded SnO2 element as a CO2 gas sensor10.1246/cl.1991.1249 ↗