Journal article
One-dimensional, titania-based lepidocrocite nanofilaments and their self-assembly
Matter
05 Jul 2023
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Water stable, one-dimensional (1D) materials are few and far between and none are titania based. Herein, we react inexpensive, water-insoluble titanium-based precursors—TiC, TiB2, and TiN—with 25 wt % tetramethyl ammonium hydroxide aqueous solution at 80°C for 2 to 5 days under ambient pressures to produce short (≈100 nm) 1D titania-based lepidocrocite (1DL) nanofilaments (NFs) with minimal cross sections of ≈ 5 × 7 Å2. The NFs self-assemble into nanobundles that, in turn, self-assemble into ribbons/fibers micrometers long. The NFs also self-assemble into quasi-2D flakes that are more or less amorphous. With time, amorphous nanoparticles (NPs)—themselves composed of 1DL NFs attached to the 2D layers—form, rendering the system amorphous. Using X-ray diffraction, photoelectron, and Raman spectroscopies, selected area diffraction, and transmission and scanning electron microscopy, we conclude that, regardless of precursor chemistry, processing conditions, or final morphologies, the 1DL NFs are the essential building blocks in all microstructures.
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Details
- Title
- One-dimensional, titania-based lepidocrocite nanofilaments and their self-assembly
- Creators
- Kaustubh Sudhakar - Drexel UniversityAvishek Karmakar - Drexel UniversityHussein O. Badr - Drexel UniversityTarek El-Melegy - Drexel UniversityMary Q. Hassig - Drexel UniversityMichael Carey - Drexel UniversityStefan Masiuk - Drexel UniversityLiyan Wu - Drexel UniversityQian Qian - Drexel UniversityTakayuki Kono - Murata (Japan)Christopher Y. Li - Drexel UniversityMichel W. Barsoum - Drexel University
- Publication Details
- Matter
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:001073820100001
- Scopus ID
- 2-s2.0-85162650374
- Other Identifier
- 991020657297904721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary