Controllable coating NiAl-layered double hydroxides on carbon nanofibers as anticorrosive microwave absorbers

Zhang, Ying; Li, Liang; Du, Changlong; Wan, Gengping; Wei, Qiyi; zhou, xueqing; Su, Yanran; Xu, Yang; Wang, Guizhen

doi:10.1016/j.jmst.2022.12.022

Cited by 24 publications

(7 citation statements)

References 48 publications

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“…Compared with Ni/MF, TiO 2 /Ni/MF-2000 not only possesses a reduced absorption thickness (from 4.90 to 3.58 mm) but also exhibits an increased absorption strength (from −35.9 to −54.8 dB) and extended EAB max (from 5.6 to 6.9 GHz) (Figure i,j). Such excellent MA performance exceeds that of recently reported absorbers (Figure k). ,− In addition, the absorption frequency can be effectively tuned from 4.0 to 17.0 GHz by further increasing the TiO 2 thickness (Figure i).…”

Section: Ma Properties Of Polychromatic Tio2/ni/mfmentioning

confidence: 53%

Microwave-Absorbing Foams with Adjustable Absorption Frequency and Structural Coloration

Wu,

Liu,

Liu

et al. 2024

Nano Lett.

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Microwave-absorbing materials with regulatable absorption frequency and optical camouflage hold great significance in intelligent electronic devices and advanced stealth technology. Herein, we present an innovative microwave-absorbing foam that can dynamically tune microwave absorption frequencies via a simple mechanical compression while in parallel enabling optical camouflage over broad spectral ranges by adjusting the structural colors. The vivid colors spanning different color categories generated from thin-film interference can be precisely regulated by adjusting the thickness of the conformal TiO2 coatings on Ni/melamine foam. Enhanced interfacial and defect-induced polarizations resulting from the introduction of TiO2 coating synergistically contribute to the dielectric attenuation performance. Consequently, such a foam exhibits exceptional microwave absorption capabilities, and the absorption frequency can be dynamically tuned from the S band to the Ku band by manipulating its compression ratio. Additionally, simulation calculations validate the adjustable electromagnetic wave loss behavior, offering valuable insights for the development of next-generation intelligent electromagnetic devices across diverse fields.

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Section: Ma Properties Of Polychromatic Tio2/ni/mfmentioning

confidence: 53%

Microwave-Absorbing Foams with Adjustable Absorption Frequency and Structural Coloration

Wu,

Liu,

Liu

et al. 2024

Nano Lett.

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“…The vibrations of NO3 − are responsible for the peak at 1381 cm −1 . This suggests that the interlayer gap added in LDH contains nitrate anion [26] N2 adsorption-desorption isotherms on Ni/Al LDH and Ni/Al-GO materials can be seen in Figure 3. Based on the IUPAC classification, both materials show type IV hysteresis loop isotherms which indicate mesoporous materials (2-50 nm) [28].…”

Section: Characterization Of the Adsorbent Materialsmentioning

confidence: 84%

Efficient Adsorption of Methylene Blue Dye Using Ni/Al Layered Double Hydroxide-Graphene Oxide Composite

Amri,

Wibiyan,

Wijaya

et al. 2024

Bull. Chem. React. Eng. Catal.

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To address environmental pollution, we developed Ni/Al layered double hydroxide-graphene oxide (Ni/Al-GO) adsorbent materials for the purpose of eliminating methylene blue (MB) dye pollutants. The adsorption process was explored by examining many experimental factors, including temperature, regeneration/reuse procedure, pH, and time, and their effects on the material. The appropriate model for the isotherm is the Langmuir isotherm. The Ni/Al-GO material achieved a maximum adsorption capacity of 61.35 mg/g for MB dye at a temperature of 60 °C. The thermodynamic characteristics indicate that the adsorption process is both endothermic and spontaneous as the temperature increases. The regeneration method demonstrated that the Ni/Al-GO material has a highly stable structure, enabling it to be utilized for five cycles with a remarkable regeneration rate of 93.49% in the fifth cycle. The pH that yielded the best results for all materials was pH 10, and the kinetic model demonstrated a pseudo second-order behavior. Copyright © 2024 by Authors, Published by MKICS and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…It is attributed to the fact that pure LDH has very poor conductivity that results in no absorption of EM waves. 47 However, the MA of NiFe-LDH was significantly enhanced after the electrodeposition of PPy. Fig.…”

Section: Resultsmentioning

confidence: 99%

Polypyrrole/NiFe-layered double hydroxide composite as an anticorrosive microwave absorber

Zhai,

Wu,

et al. 2024

J. Mater. Chem. C

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Controllable coating NiAl-layered double hydroxides on carbon nanofibers as anticorrosive microwave absorbers

Cited by 24 publications

References 48 publications

Microwave-Absorbing Foams with Adjustable Absorption Frequency and Structural Coloration

Microwave-Absorbing Foams with Adjustable Absorption Frequency and Structural Coloration

Efficient Adsorption of Methylene Blue Dye Using Ni/Al Layered Double Hydroxide-Graphene Oxide Composite

Polypyrrole/NiFe-layered double hydroxide composite as an anticorrosive microwave absorber

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