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One-dimensional growth of TiO2 nanorods from ilmenite sands
Growth mechanisms of TiO2 nanorods synthesized from mineral ilmenite using ball milling and annealing method have been systematically investigated. Two annealing processes are needed to grow the nanorods. The heating rate and gaseous environment in the first annealing step are critical to the formation of intermediate phases; these and the annealing atmosphere in the second heating play very important roles in nanorod growth. One-dimensional growth of the nanorods induced by low-temperature annealing in nitrogen plus hydrogen is possibly driven by atom vacancy diffusion in addition to surface diffusion.
History
Journal
Journal of alloys and compoundsVolume
504Issue
1Pagination
364 - 367Publisher
Elsevier BVLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0925-8388eISSN
1873-4669Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2010 Elsevier B.V.Usage metrics
Keywords
titanium oxidesnanorodsball millingsynthesisrutileilmenite oxide materialsnanaostructured materialsmechanical alloyingScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringChemistryMaterials ScienceNanostructured materialsCARBOTHERMIC REDUCTIONTIO2(110)TITANIUMSURFACECondensed Matter Physics
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