Gas-sensing property and mechanism of CaxLa1−xFeO3 ceramics
作者： Ling-bing Kong , Yu-sheng Shen
DOI: 10.1016/0925-4005(96)80052-9
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摘要: Abstract LaFEO3 and CaxLa1−xFeO3 ceramic powders have been prepared by the coprecipitation method from La(NO3)3, Fe(NO3)3 Ca(NO3)2 aqueous solutions. The orthorhombic perovskite phases of LaFeO3 are characterized X-ray diffraction patterns. sensors fabricated with those high sensitivity to alcohol. Partial substitution La3+ in Ca2+ can enhance materials reducing gases. resistance an sensor air, vacuum alcohol-containing air has measured. Complex impedance spectroscopy used try analyse gas-sensing mechanism. According experimental results, it be deduced that surface adsorptive lattice oxygen govern sensing properties ceramics.
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sci-hub.se 参考文章(17)
Jerome F. McAleer, Patrick T. Moseley, John O. W. Norris, David E. Williams, Bruce C. Tofield, Tin dioxide gas sensors. Part 2.—The role of surface additives Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. ,vol. 84, pp. 441- 457 ,(1988) , 10.1039/F19888400441
W. Mokwa, D. Kohl, G. Heiland, An SnO2 thin film for sensing arsine Sensors and Actuators. ,vol. 8, pp. 101- 108 ,(1985) , 10.1016/0250-6874(85)87008-6
JUNICHIRO MIZUSAKI, TADASHI SASAMOTO, W. ROGER CANNON, H. KENT BOWEN, Electronic Conductivity, Seebeck Coefficient, and Defect Structure of La1-xSrxFeO3 (x=0.l, 0.25) Journal of the American Ceramic Society. ,vol. 66, pp. 247- 252 ,(1983) , 10.1111/J.1151-2916.1983.TB15707.X
Abdul M. Azad, Sheikh A. Akbar, Lora B. Younkman, Mohammad A. Alim, High‐Temperature Immittance Response in Anatase‐Based Sensor Materials Journal of the American Ceramic Society. ,vol. 77, pp. 3145- 3152 ,(1994) , 10.1111/J.1151-2916.1994.TB04563.X
Tsuyoshi Arakawa, Hiroshi Kurachi, Jiro Shiokawa, Physicochemical properties of rare earth perovskite oxides used as gas sensor material Journal of Materials Science. ,vol. 20, pp. 1207- 1210 ,(1985) , 10.1007/BF01026315
Junichiro Mizusaki, Masafumi Yoshihiro, Shigeru Yamauchi, Kazuo Fueki, Nonstoichiometry and defect structure of the perovskite-type oxides La1−xSrxFeO3−° Journal of Solid State Chemistry. ,vol. 58, pp. 257- 266 ,(1985) , 10.1016/0022-4596(85)90243-9
P. Sujatha Devi, M. Subba Rao, Preparation, structure and electrical properties of the system LaCr1?x Ti x O3 Journal of Materials Science Letters. ,vol. 11, pp. 226- 228 ,(1992) , 10.1007/BF00741428
Abdul M. Azad, Lora B. Younkman, Sheikh A. Akbar, Mohammad A. Alim, Characterization of TiO2‐Based Sensor Materials Using Immittafice Spectroscopy Journal of the American Ceramic Society. ,vol. 77, pp. 481- 486 ,(1994) , 10.1111/J.1151-2916.1994.TB07017.X
L. González Tejuca, Alexis T. Bell, J.L.G. Fierro, M.A. Peña, Surface behaviour of reduced LaCoO3 as studied by TPD of CO, CO2 and H2 probes and by XPS Applied Surface Science. ,vol. 31, pp. 301- 316 ,(1988) , 10.1016/0169-4332(88)90095-5
Junichiro Mizusaki, Masafumi Yoshihiro, Shigeru Yamauchi, Kazuo Fueki, Thermodynamic quantities and defect equilibrium in the perovskite-type oxide solid solution La1−xSrxFeO3−δ Journal of Solid State Chemistry. ,vol. 67, pp. 1- 8 ,(1987) , 10.1016/0022-4596(87)90331-8