Influence of Li doping on the humidity response of maghemite (γ-Fe2O3) nanopowders synthesized at room temperature
Source abstract
Abstract
Abstract Li doped and undoped γ - Fe 2 O 3 nanopowders have been synthesized at room temperature via simple method by using ethylene diamine as a precipitating agent. The influence of Li doping on the humidity sensing behavior was investigated by varying the doping concentration of Li (0.15, 0.30, 0.45 and 0.75 mol%). The results revealed that the Li doping was advantageous for tuning the response curves in the lower humidity region. The optimal content for Li doping was found to be 0.45 mol% for which the sensor showed more linear behavior with its potential for device application in comparison with the other samples.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Analytical Chemistry and Sensors · Gas Sensing Nanomaterials and Sensors · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. Analysis of the d.c. and a.c. properties of K2O-doped porous Ba0.5Sr0.5TiO3 ceramic humidity sensor10.1007/BF02385619 ↗
2. Humidity sensor using KH2PO4-doped porous (Pb, La) (Zr, Ti)O310.1007/BF01161478 ↗
3. Lanthanum doped barium stannate for humidity sensor10.1016/j.matlet.2006.07.154 ↗
4. Humidity sensing and electrical properties of a composite material of SiO2 and poly-[3-(methacrylamino) propyl] trimethyl ammonium chloride10.1016/S0925-4005(04)00416-2 ↗
5. The application of CNT/ Nafion composite material to low humidity sensing measurement10.1016/j.snb.2004.04.105 ↗
6. A novel highly reversible humidity sensor based on poly (2 propyn-2-furoate)10.1016/S0925-4005(02)00159-4 ↗
7. Polymer electrolytes as humidity sensors: progress in improving an impedance device10.1016/S0925-4005(02)00190-9 ↗
8. Sensitivity optimization of tapered optical fiber humidity sensors by means of tuning the thickness of nanostructure sensitive coatings10.1016/j.snb.2006.06.008 ↗
9. Humidity sensing properties of Pd2+ doped ZnO nanotetrapods
10. Wang · Sensors and Actuators B · 2002 · 84 · 9510.1016/S0925-4005(01)01065-6 ↗
11. Tao · Sensors and Actuators B · 1999 · 61 · 3310.1016/S0925-4005(99)00276-2 ↗
12. Niu · Sensors and Actuators B · 2004 · 99 · 39910.1016/j.snb.2003.12.006 ↗
13. Zhang · Sensors and Actuators B · 1996 · 32 · 18110.1016/S0925-4005(97)80026-3 ↗
14. Nakatani · Japanese Journal of Applied Physics · 1983 · 22 · 23310.1143/JJAP.22.233 ↗
15. Pure and Pt-loaded gamma iron oxide as sensor for detection of sub ppm level of acetone10.1016/j.snb.2011.03.047 ↗
16. Humidity sensing properties of Li–iron oxide based-thin films10.1016/S0925-4005(00)00679-1 ↗
17. G. Neri, A. Bonavita, C. Pace, S. Patan´e, A. Arena, M. Allegrini, S. Galvagno, Iron oxide based-thin films for humidity sensors, in: Proceedings of the XIII Eurosensors Conference, 1999, pp. 149–152.
18. Electrical characterization of Fe2O3 humidity sensors doped with Li2+, Zn2+ and Au3+ ions10.1016/j.snb.2005.06.061 ↗
19. Wang · Sensors and Actuators B · 2008 · 133 · 62210.1016/j.snb.2008.03.028 ↗
20. Humidity sensors10.1111/j.1151-2916.1991.tb06911.x ↗
21. Ceramic sensors for humidity detection: the state-of-the art and future developments10.1016/0925-4005(94)01268-M ↗
22. Humidity-sensing materials10.1557/S0883769400052519 ↗
23. Ansbacher · Nature · 1953 · 24 · 17710.1038/171177b0 ↗
24. Thorp · Transactions of the Faraday Society · 1959 · 55 · 44210.1039/tf9595500442 ↗
25. W.J. Fleming, A Physical Understanding of Solid-State Humidity Sensors, SAE Paper no. 810432, 1981, pp. 51–62.
26. Humidity sensor using TiO2–SnO2 ceramics