Nanocrystalline gallium ferrite: A novel material for sensing very low concentration of alcohol vapour
Source abstract
Abstract
Abstract Nanocrystalline orthorhombic gallium ferrite (GFO) has been synthesized by a sol–gel method. The synthesized powder has been characterized by TG/DTA, XRD, TEM, FTIR and nitrogen adsorption isotherm. In the present study we report an excellent ethanol vapour sensitivity of nanocrystalline GaFeO 3 at concentrations down to 1 ppm making the sensors suitable for application in food industries. Interestingly in contrast to the market available consumers breath analyser based on tin dioxide, GaFeO 3 -based sensor is immune to moisture (present in breath) and acetone vapour (an interfacing agent for diabetics). Such gallium ferrite based sensors can be used to make potential interference free breath analyser for real-life applications. In addition, such sensors being highly selective and do not show any cross-sensitivity towards moisture, methanol and carbon monoxide like those based on tin dioxide.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. A direct gaseous ethanol imaging system for analysis of alcohol metabolism from exhaled breath10.1016/j.snb.2013.05.071 ↗
2. Determination of breath alcohol using a differential-type amperometric biosensor based on alcohol dehydrogenase10.1016/S0003-2670(99)00135-X ↗
3. Sprayed and thermally evaporated SnO2 thin films for ethanol sensors10.1016/0925-4005(96)80019-0 ↗
4. After oil and gas: methanol economy
5. Preparation, characterization and acetone sensing properties of Ce doped SnO2 hollow spheres10.1016/j.snb.2012.07.115 ↗
6. Semiconducting gas sensor for chlorine based on inverse spinel ferrites10.1016/S0925-4005(99)00112-4 ↗
7. Reducing gas sensing properties of ferrite compounds M2Fe2O4 (M=Cu, Zn, Cd, Mg)10.1016/S0925-4005(00)00368-3 ↗
8. Preparation and gas sensing properties of ZnM2O4 (M=Fe, Co,Cr)10.1016/j.snb.2003.12.007 ↗
9. Simple synthesis of MgFe2O4 nanoparticles as gas sensing materials10.1016/j.snb.2004.11.026 ↗
10. Preparation and characterization of ferrite as gas sensing materials10.1023/A:1006716721984 ↗
11. Nanosized spinel NiFe2O4: a novel material for the detection of liquefied petroleum gas in air10.1016/S0254-0584(03)00170-6 ↗
12. Bismuth ferrite: new materials for semiconductor gas sensors10.1016/0925-4005(91)80167-I ↗
13. Pure and Pt loaded gamma iron oxide as sensors for detection of sub ppm level of acetone10.1016/j.snb.2011.03.047 ↗
14. Nickel doped tin oxide hollow nanofibers prepared by electrospinning for acetone sensing10.1016/j.snb.2013.08.098 ↗
15. Structural, magnetic, dielectric properties of multiferroic GaFeO3 prepared by solid state reaction and sol–gel method10.1016/j.jallcom.2009.11.099 ↗
16. Selective detection of methane and butane by temperature modulation in iron doped tin oxide sensors10.1016/j.snb.2005.10.046 ↗
17. Ethanol monitoring by ZnFe2O4 thin film obtained by spray pyrolysis10.1016/j.snb.2012.09.061 ↗
18. Facile synthesis and properties of ZnFe2O4 and ZnFe2O4/polypyrrole core–shell nanoparticles10.1016/j.solidstatesciences.2009.04.014 ↗
19. Hydrothermal synthesis of manganese zinc ferrites10.1111/j.1151-2916.1995.tb08684.x ↗
20. (〈http:/srdata.nist.gov/xps/〉)2003.
21. Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in iron compounds10.1002/sia.1984 ↗
22. Development of a novel gas sensor based on oxide thick films10.1016/j.mseb.2004.12.061 ↗
23. Indium tin oxide (ITO) thin film gas sensor for detection of methanol at room temperature
24. Sprayed ZnO thin films for ethanol sensors10.1007/s10853-005-0519-9 ↗
25. Titanium dioxide chemical sensor working with ac voltage10.1016/S0925-4005(98)00096-3 ↗
26. Photoresponse of a titanium dioxide chemical sensor10.1016/S0022-0728(99)00293-4 ↗
27. Alcohol sensing characteristics of spray deposited ZnO nanoparticle thin films10.1016/j.snb.2011.09.023 ↗
28. Development of nanocrystalline CrNbO4 based p type semiconducting gas sensor for LPG, ethanol and ammonia10.1016/j.snb.2012.04.002 ↗