Growth and optical properties of cerium dioxide nanocrystallites prepared by coprecipitation routes
Source abstract
Abstract
Abstract Nanosized cerium dioxide (CeO 2 ) powders have been synthesized using coprecipitation methods and cerium nitrate hexahydrate (Ce(NO 3 ) 3 ·6H 2 O) as the starting material. The growth and optical properties of nanosized CeO 2 powders were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), nano-beam electron diffraction (NBED), high resolution TEM (HRTEM), and ultraviolet–visible (UV–vis) absorption spectrophotometry. The XRD result shows that the dried CeO 2 precursor powders (both before and after calcination at various temperatures and times) contained a single crystalline phase of CeO 2 . In the dried precursor powders, the crystallites of CeO 2 measured 10.4 nm and 66.8 nm before and after calcination at 1273 K for 240 min, respectively. The indirect band gap energy ( E i ) of CeO 2 decreased from 3.03 eV to 2.68 eV as the crystallite size increased from 10.4 nm to 66.8 nm, whereas the direct band gap energy ( E d ) of CeO 2 also decreased from 3.79 eV to 3.38 eV.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Quantum Dots Synthesis And Properties · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
Show source-provided references
1. Resistive oxygen gas sensors based on CeO2 fine powder prepared using mist pyrolysis10.1016/S0925-4005(02)00224-1 ↗
2. A systematic study on the synthesis of Ca, Gd codoped cerium oxide by combustion method10.1016/j.jallcom.2010.10.137 ↗
3. Aqueous tape casting and crystallization behavior of gadolinium-doped ceria10.1016/j.ceramint.2009.05.002 ↗
4. Ceria-promoted three-way catalysts for auto exhaust emission control10.1021/i300006a014 ↗
5. The utilization of ceria in industrial catalysis10.1016/S0920-5861(98)00515-X ↗
6. Coupling oxygen ion conduction to photocatalysis in mesoporous nanorod-like ceria significantly improves photocatalytic efficiently10.1021/jp202720g ↗
7. Atomistic simulation of CeO2 surface hydroxylation: implications for glass polishing10.1007/s10853-008-2605-2 ↗
8. Origin of the blue-shift in ultraviolet absorption spectra of nanocrystalline CeO2 particles10.2320/matertrans1989.41.1104 ↗
9. Properties of CeO2 thin films prepared by oxygen-ion-assisted deposition10.1364/AO.24.002267 ↗
10. Research opportunities on clusters and cluster-assembled materials10.1557/JMR.1989.0704 ↗
11. Supercritical hydrothermal synthesis of hydrophilic polymer-modified water-dispersible CeO2 nanoparticles10.1039/C0CE00467G ↗
12. Hydrothermal synthesis of single crystalline nano CeO2 and its structural, optical and electronic characterization10.1080/10426914.2010.480995 ↗
13. Preparation and characterization of mesoporous MO2 (M: Ti, Ce, Zr, and Hf) nanopowders by a modified sol-gel method10.1016/j.ceramint.2004.10.009 ↗
14. Microwave-assisted synthesis of ceria nanoparticles10.1016/j.materresbull.2005.05.014 ↗
15. Structural characteristics of cerium oxide nanocrystals prepared by the microemulsion method10.1021/cm010235p ↗
16. Characterization of cerium (IV) oxide ultrafine particles prepared using reversed micelles10.1021/cm970359v ↗
17. Facile synthesis of ceria rhombic microplates10.1007/s10853-008-2876-7 ↗
18. Reverse precipitation synthesis and characterization of CeO2 nanopowder10.1016/j.jallcom.2009.10.243 ↗
19. Growth behavior of nanosized ceria powders prepared by coprecipitation routes10.1016/j.ceramint.2013.02.011 ↗
20. Facile hydrothermal synthesis of CeO2 nanosheets with high reactive exposure surface10.1016/j.jallcom.2011.03.156 ↗
21. Facile electrochemical synthesis of single crystalline CeO2 octahedrons and their optical properties10.1021/la904882t ↗
22. Cullity · 1978 · 87
23. Egg white synthesis and photoluminescence of platelike clusters of CeO2 nanoparticles10.1021/cg0608864 ↗
24. Sustainable and facile route to nearly nanodisperse spherical aggregates of CeO2 nanocrystals with ionic liquids and their catalytic activities for Co oxidation10.1021/jp807348n ↗
25. Growth mechanism and surface chemical characteristics of dicarboxylic acid-modified CeO2 nanocrystals produced in supercritical water: tailor-made-water-soluble CeO2 nanocrystals10.1021/cg900809b ↗
26. Hydroxyapatite synthesized by a simplified hydrothermal method10.1016/0272-8842(95)00135-2 ↗
27. Phase transformation kinetics of 3mol% yttria partially stabilized zirconia (3Y-PSZ) nanopowders prepared by a non-isothermal process10.1016/j.ceramint.2010.09.018 ↗
28. Characterization and sintering of nan9crystalline CeO2 powders synthesized by a mimic alkoxide method10.1016/S1359-6454(00)00327-X ↗
29. Grain growth kinetics of nanocrystalline SnO2 for long-term isothermal annealing10.1016/S1359-6462(03)00296-3 ↗
30. Blue-shift in ultraviolet absorption spectra of monodisperse CeO2−x nanoparticles10.1063/1.372016 ↗
31. Fabrication of cerium oxide nanoparticles: characterization and optical properties10.1016/j.jcis.2011.01.063 ↗
32. ZnO:CeO2-based nanopowders with low catalytic activity as UV absorbers10.1016/j.apsusc.2009.06.071 ↗
33. TiO2 nanoparticles as an effective UV-B radiation skin-protective compound in sunscreens10.1088/0022-3727/38/15/006 ↗
34. Optical and electronic transport properties of electrodeposited thallium(III) oxide films10.1021/j100041a047 ↗
35. Optical properties of pure CeO2 and mixed CeO2/SnO2 thin film coatings10.1002/pssb.2221860135 ↗
36. Effects of ion irradiation and annealing on optical and structural properties of CeO2 films on sapphire10.1016/j.physb.2006.06.162 ↗
37. Controlled synthesis of CeO2 nanorods by a solvothermal method10.1088/0957-4484/16/9/006 ↗
38. Synthesis and characterization of nanocrystalline cerium oxide powders by two-stage non-isothermal precipitation10.1016/j.ssc.2004.12.020 ↗
39. Influence of hydrogen peroxide in the preparation of nanocrystalline ceria10.1021/cm063024z ↗
40. Optical performance of nanocrystalline transparent ceria films10.1063/1.1494458 ↗
41. Size effect in gas-phase photo-oxidation of trichloroethylene using nanometer-sized TiO2 catalyst10.1006/jcat.2000.2838 ↗
42. Sol-gel auto-igniting synthesis and structural property of cerium-doped titanium dioxide nanosized powders10.1016/j.jeurceramsoc.2004.11.017 ↗
43. Electrical properties and non-stoichiometry in ZnO single crystals10.1002/pssa.2210660228 ↗
44. Microemulsion mediated synthesis of zinc-oxide nanoparticles for varistor studies10.1016/0025-5408(93)90178-G ↗
45. Morphology-controllable synthesis of mesoporous CeO2 nano- and microstructures10.1021/cm0507967 ↗
46. Particle size distribution measurements of manganese-doped ZnS nanoparticles10.1021/ac900043y ↗
47. Sonochemical synthesis of cerium oxide nanoparticles-effect of additives and quantum size effect10.1006/jcis.2001.8047 ↗