Simultaneously tuning structural defects and crystal phase in accordion-like Ti <em> <sub>x</sub> </em>O <sub>2 <em>x</em> </sub> <em> <sub>&minus;</sub> </em> <sub>1</sub> derived from Ti <sub>3</sub>C <sub>2</sub>T <em> <sub>x</sub> </em> MXene for enhanced electromagnetic attenuation
نویسندگان
چکیده
The single Ti3C2Tx MXene material is not suitable for electromagnetic (EM) wave absorption due to its high conductivity and impedance mismatch. To address this issue, we ingeniously take advantage of easily oxidized characteristic establish structural defects multiphase engineering in accordion-like TixO2x-1 derived from by the high-temperature hydrogen reduction process first time. phase evolution sequences are revealed be MXene/anatase TiO2 → MXene/rutile (1≤x≤4) during reaction. Benefiting conductance loss caused hole motion under action external electric field heterointerfaces interfacial polarization, match EM attenuation capability absorbers superior that pristine MXene/TiO2 material. Additionally, simulated whole radar cross section (RCS) plots different incident angular product lower than -20 dBm2 minimum RCS value can reach -43 dBm2, implying a great potential practical application absorption. Moreover, relationship between charges, defects, interfaces, performances materials systematically clarified energy band theory, which research other MXene-derived semiconductor absorbing composites.
منابع مشابه
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ژورنال
عنوان ژورنال: Journal of Advanced Ceramics
سال: 2023
ISSN: ['2227-8508', '2226-4108']
DOI: https://doi.org/10.26599/jac.2023.9220799