Sol-gel zirconia-based nanopowders with potential applications for sensors
Source abstract
Abstract
Abstract The aim of the present work was to prepare zirconia-based nanopowders using the sol-gel method. Both gelatin as structure directing agent and Ce as dopant have been used, in order to create nanostructures with active surface, able to confer optical properties to the obtained materials. Different characterization methods (thermal analysis, infrared spectroscopy, X-ray diffraction, scanning electron microscopy, BET surface area and porosity and fluorescence assay) have been used to establish the effects of organic additive and dopant on the properties of the obtained nanopowders. They revealed that all the prepared powders are nanometric and consist only of monoclinic ZrO 2 , except the Ce-doped one, where a Zr 1− x Ce x O 2 type solid solution was assumed to be formed. The sensor platform abilities of the nanopowders have been tested using Rhodamine B as fluorescent detector. It was demonstrated that both gelatin as template (due to pores generation) and Ce as dopant (due to induced lattice defects) influence the optical properties of the obtained oxide powders. This allows us to consider them interesting candidates for the sensors platform.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Nanomaterials in Catalysis · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Synthesis, microstructure and optical characterization of zirconium oxide nanostructures10.1016/j.ceramint.2009.02.007 ↗
2. Sol–gel zirconia nanopowders with α-cyclodextrin as organic additive10.1016/j.jallcom.2011.12.070 ↗
3. Zirconia based nanomaterials for Oxygen sensors – generation, characterisation and optical properties10.4028/www.scientific.net/SSP.128.141 ↗
4. Tuning the phase composition and particle characteristics of partially stabilized yttria and ceria co-doped zirconia nanocrystals through a sol-gel process with sodium chloride as an additive, Ceram
5. Progress on yttria-stabilized zirconia sensors for hydrothermal pH measurements10.1016/S0009-2541(03)00033-0 ↗
6. Zirconia-based gas sensors using oxide sensing electrode for monitoring NOx in car exhaust
7. Synthesis and study of electrical properties of Di ethylene glycol embedded ZrO2 films as a gas sensor10.6000/1929-5995.2012.01.02.2 ↗
8. Electrochemistry experiments to develop novel sensors for real-world applications
9. OX400 low concentration zirconia oxygen analyzer
10. Temperature independent resistive oxygen sensor prepared using zirconia-doped ceria powders10.1016/j.snb.2011.12.036 ↗
11. Oxygen sensing with mesoporous ceria-zirconia solid solutions10.1016/j.snb.2009.02.078 ↗
12. Preparation, morphology and specific surface area of CeO2-ZrO2 and CeO2-ZrO2-Al2O3 fine fibers via precursor sol-gel technique10.1016/j.jallcom.2009.11.139 ↗
13. Characterization of CeO2-ZrO2 mixed oxides prepared by two different co-precipitation method10.1016/S1002-0721(12)60267-1 ↗
14. Influence of the preparation method on the activity of ceria zirconia mixed oxides for naphthalene total oxidation10.1016/j.apcatb.2012.11.036 ↗
15. Nanostructured CeO2-ZrO2 mixed oxides10.1039/B414244F ↗
16. Controlled synthesis and assembly of ceria-based nanomaterials10.1016/j.jcis.2009.04.007 ↗
17. Role of cerium-zirconium mixed oxides as catalysts for car pollution: a short review10.1016/S0925-8388(98)00477-0 ↗
18. The greener synthesis of nanoparticles10.1016/j.tibtech.2013.01.003 ↗
19. Molecular nanotechnologies of gelatine-immobilization using macrocyclic metal chelates10.3402/nano.v5.21485 ↗
20. Kirk-Othmer · Encyclopedia of Food and Feed Technology, Gelatin · 2008 · vol. 1
21. Gelatin-assisted hydrothermal synthesis of single crystalline zinc oxide nanostars and their photocatalytic properties10.1016/j.jcis.2013.03.001 ↗
22. Green gelatine-assisted sol-gel synthesis of ultrasmall nickel oxide nanoparticles10.1016/j.ceramint.2012.10.237 ↗
23. Facile synthesis, characterization, and evaluation of neurotoxicity effect of cerium oxide nanoparticles10.1016/j.ceramint.2013.02.026 ↗
24. Effect of proteins on self-assembly of multiring structural ZrO2 nanodisks10.1016/j.colsurfa.2009.04.023 ↗
25. Kinetic study of organic dye degradation using ZnO particles with different morphologies as a photocatalyst10.1155/2012/608183 ↗
26. Gas phase sensors for bases using rhodamine B in nafion films10.1002/app.31830 ↗
27. Sol-gel synthesis and characterization of novel La, Mn and Fe doped zirconia: catalytic combustion activity of trichloroethylene10.1016/j.colsurfa.2007.07.029 ↗
28. Synthesis of nanostructured tetragonal ZrO2 of enhanced thermal stability
29. Reconstructive phase formation of ZrO2 nanoparticles in a new orthorhombic crystal structure from an energized porous ZrO(OH)2 xH2O precursor10.1016/S0272-8842(03)00095-6 ↗
30. A nearly pure monoclinic nanocrystaline zirconia10.1016/j.jssc.2005.03.005 ↗
31. Synthesis and characterization of nanocrystaline zirconia powder by simple sol-gel method with glucose and fructose as organic additives10.1016/j.powtec.2010.09.011 ↗
32. Synthesis and characterization of nano-sized zirconia powder synthesized by single emulsion-assisted direct precipitation10.1016/j.jcis.2009.10.065 ↗
33. Preparation of CeO2 by a simple microwave-hydrothermal method10.1016/j.ssi.2008.11.016 ↗
34. Interpretation of infrared spectra
35. The infrared absoption of amino acid side chains10.1016/S0079-6107(00)00021-3 ↗
36. Infrared spectroscopy of proteins
37. Klug · 1959
38. Phase separation and surface segregation in ceria-zirconia solid solutions10.1098/rspa.2010.0512 ↗
39. Crystallite size and microstrain of thermally aged low-ceria-and low-yttria doped zirconia10.1111/j.1151-2916.1998.tb02419.x ↗
40. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (IUPAC Recommendations 1984)10.1351/pac198557040603 ↗
41. Rhodamine B equilibria10.1021/ja01600a017 ↗