%0 Journal Article %1 WOS:000281054700004 %A Rodrigues, Carolina M %A Ferreira, Odair P %A Alves, Oswaldo L %C VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS %D 2010 %I SPRINGER %J JOURNAL OF NANOPARTICLE RESEARCH %K Mixed Nanoribbons; Nanotubes; Synthesis} oxide; treatment; {Hydrothermal %N 7 %P 2355-2361 %R 10.1007/s11051-010-9985-3 %T Nanostructures of sodium titanate/zirconium oxide %V 12 %X In this work is reported the synthesis of nanotubes and nanoribbons from mixed oxides (Ti(1-x) Zr (x) O(2)center dot nH(2)O), employing hydrothermal treatment in a highly alkaline medium. The morphology and crystal structure of the products obtained via hydrothermal treatment depend on the value of x. For example, for x equal to 0 and 0.50 were observed the presence of nanotubes (diameter around 9 nm) and nanoribbons (diameter around 200 nm), respectively. However, for x values above 0.50, there was no morphological change. Regarding the crystalline structure of these samples, for x equal to 0 was observed the sodium titanate phase; already for x values up to 0.50, we observed the presence of two crystalline phases: sodium titanate and tetragonal ZrO(2). For x values above 0.50, only tetragonal ZrO(2) was observed. Furthermore, only the product obtained from x equal to 0.15 was observed the presence of three-dimensional flower-like arrangements. The results obtained by the characterization techniques showed the segregation of zirconium after hydrothermal treatment of precursors with x less or equal to 0.50. Thus, we describe the important role that Ti/Zr molar ratio of the precursor plays on the morphology and crystalline phase of the products formed by hydrothermal treatment.

@article{WOS:000281054700004, abstract = {In this work is reported the synthesis of nanotubes and nanoribbons from mixed oxides (Ti(1-x) Zr (x) O(2)center dot nH(2)O), employing hydrothermal treatment in a highly alkaline medium. The morphology and crystal structure of the products obtained via hydrothermal treatment depend on the value of x. For example, for x equal to 0 and 0.50 were observed the presence of nanotubes (diameter around 9 nm) and nanoribbons (diameter around 200 nm), respectively. However, for x values above 0.50, there was no morphological change. Regarding the crystalline structure of these samples, for x equal to 0 was observed the sodium titanate phase; already for x values up to 0.50, we observed the presence of two crystalline phases: sodium titanate and tetragonal ZrO(2). For x values above 0.50, only tetragonal ZrO(2) was observed. Furthermore, only the product obtained from x equal to 0.15 was observed the presence of three-dimensional flower-like arrangements. The results obtained by the characterization techniques showed the segregation of zirconium after hydrothermal treatment of precursors with x less or equal to 0.50. Thus, we describe the important role that Ti/Zr molar ratio of the precursor plays on the morphology and crystalline phase of the products formed by hydrothermal treatment.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS}, author = {Rodrigues, Carolina M and Ferreira, Odair P and Alves, Oswaldo L}, biburl = {https://www.bibsonomy.org/bibtex/20e5561f191ed802cd5796d970c9c00ee/ppgfis_ufc_br}, doi = {10.1007/s11051-010-9985-3}, interhash = {a64fe345c281f43460ea1960348f36f8}, intrahash = {0e5561f191ed802cd5796d970c9c00ee}, issn = {1388-0764}, journal = {JOURNAL OF NANOPARTICLE RESEARCH}, keywords = {Mixed Nanoribbons; Nanotubes; Synthesis} oxide; treatment; {Hydrothermal}, number = 7, pages = {2355-2361}, publisher = {SPRINGER}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Nanostructures of sodium titanate/zirconium oxide}, tppubtype = {article}, volume = 12, year = 2010 }