Insights into the multistep transformation of titanate nanotubes into nanowires and nanoribbons

• Autorzy: Baszczuk, A. , Jasiorski, M. , Borak, B. , Wódka, J.
• Języki publikacji: EN

Abstrakty

EN

Different types of titanate one-dimensional nanostructured materials were synthesized and characterized using scanning and transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The results presented in this work unquestionably showed dependence of morphology and structure of the titanate nanopowders on parameters of hydrothermal synthesis. It was found that nanotubes, nanowires and nanoribbons are three unavoidable kinetic products of hydrothermal reaction. Moreover, increasing temperature of reaction or hydrothermal treatment duration results in acceleration of nanotube-nanowire-nanoribbon transformation. However, the sequence of titanate morphology transformation is invariable. The detailed studies further revealed that the crystal structure of hydrothermally prepared nanotubes and nanowires are indistinguishable but the determination of the exact structure is practically impossible. Because of higher crystallinity, the structure of nanoribbons can be established. It was shown that it corresponds to the monoclinic layered trititanic acid H₂Ti₃O₇ and is isostructural with sodium derivatives Na_2-xH_xTi₃O_7.nH₂O (with x near 2).

Słowa kluczowe

EN

titanate nanotubes; nanoribbon; nanowires; hydrothermal synthesis; structure; morphology

• Czasopismo: Materials Science Poland
• Rocznik: 2016
• Tom: Vol. 34, No. 4
• Strony: 691--702
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Baszczuk, A.

• Wrocław University of Technology, Department of Mechanics, Materials Science and Engineering, Smoluchowskiego 25, 50-370 Wrocław, Poland,

autor

Jasiorski, M.

• Wrocław University of Technology, Department of Mechanics, Materials Science and Engineering, Smoluchowskiego 25, 50-370 Wrocław, Poland

autor

Borak, B.

• Wrocław University of Technology, Department of Mechanics, Materials Science and Engineering, Smoluchowskiego 25, 50-370 Wrocław, Poland

autor

Wódka, J.

• Wrocław University of Technology, Faculty of Chemistry, Smoluchowskiego 23, 50-370 Wroclaw, Poland

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na
działalność upowszechniającą naukę (zadania 2017).

Identyfikatory

DOI

10.1515/msp-2016-0094