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Top-down surfactant-free electrosynthesis of magnéli phase Ti9O17 nanowires

SCHNEIDER, P. SCHOTT, C. MAIER, D. WATZELE, S. MICHALIČKA, J. RODRIGUEZ PEREIRA, J. HROMÁDKO, L. MACÁK, J. BARAN, V. SENYSHYN, A. VIOLA, A. MAILLARD, F. GUBANOVA, E. BANDARENKA, A.

Original Title

Top-down surfactant-free electrosynthesis of magnéli phase Ti9O17 nanowires

Type

journal article in Web of Science

Language

English

Original Abstract

TiO2 nanowires have proven their importance as a versatile material in numerous fields of technology due to their unique properties attributable to their high aspect ratio and large surface area. However, synthesis is an enormous challenge since state-of-the-art techniques rely on complex, multi-stage procedures with expensive, specialized equipment, employing high-temperature steps and potentially toxic precursor materials and surfactants. Hence, we elucidate a simple and facile top-down methodology for the synthesis of nanowires with non-stoichiometric Magn & eacute;li phase Ti9O17. This methodology relies on the electrochemical erosion of bulk Ti wires immersed in an aqueous electrolyte, circumventing the use of environmentally harmful precursors or surfactants, eliminating the need for high temperatures, and reducing synthesis complexity and time. Using multiple techniques, including transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction, we provide evidence of the successful synthesis of ultrathin nanowires with the crystal structure of non-stoichiometric Ti9O17 Magn & eacute;li phase. The nanowire width of similar to 5 nm and the Brunauer-Emmett-Teller surface area of similar to 215 m(2) g(-1) make the nanowires presented in this work comparable to those synthesized by state-of-the-art bottom-up techniques.

Keywords

TITANIUM-DIOXIDE NANOMATERIALS; MAGNELI PHASE; TIO2 NANOPARTICLES; FACILE PREPARATION; CATALYST SUPPORT; HIGH-PERFORMANCE; OXIDE NANOTUBES; CO OXIDATION; DISPERSION; TOXICITY

Authors

SCHNEIDER, P.; SCHOTT, C.; MAIER, D.; WATZELE, S.; MICHALIČKA, J.; RODRIGUEZ PEREIRA, J.; HROMÁDKO, L.; MACÁK, J.; BARAN, V.; SENYSHYN, A.; VIOLA, A.; MAILLARD, F.; GUBANOVA, E.; BANDARENKA, A.

Released

18. 3. 2024

Publisher

ROYAL SOC CHEMISTRY

Location

CAMBRIDGE

ISBN

2633-5409

Periodical

Materials Advances

Year of study

5

Number

6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2368

Pages to

2376

Pages count

9

URL

https://pubs.rsc.org/en/content/articlelanding/2024/ma/d3ma00968h

BibTex

@article{BUT188928,
  author="Peter M. {Schneider} and Christian M. {Schott} and Dominic {Maier} and Sebastian {Watzele} and Jan {Michalička} and Jhonatan {Rodriguez Pereira} and Luděk {Hromádko} and Jan {Macák} and Volodymyr {Baran} and Anatoliy {Senyshyn} and Arnaud {Viola} and Frederic {Maillard} and Elena L. {Gubanova} and Aliaksandr S. {Bandarenka}",
  title="Top-down surfactant-free electrosynthesis of magnéli phase Ti9O17 nanowires",
  journal="Materials Advances",
  year="2024",
  volume="5",
  number="6",
  pages="2368--2376",
  doi="10.1039/d3ma00968h",
  issn="2633-5409",
  url="https://pubs.rsc.org/en/content/articlelanding/2024/ma/d3ma00968h"
}