Modulation of MoSe2 &amp; MnFe2O4@MnO2 nano-architectures for microwave absorption properties via single- and bilayer method

Zhang, Mingming; Hassan, Ali; Mehrez, Sadok; Mahariq, İbrahim; Anqi, Ali E.; Elbadawy, Ibrahim; Alamri, Sagr

doi:10.1016/j.ceramint.2022.09.361

Cited by 23 publications

(7 citation statements)

References 43 publications

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“…The peak at 235.7 eV is related to Mo 6+ from the excessive MoO 4 2– , while the 230.4 eV peak belongs to Se 3 s. The high-resolution Se 3d spectrum is shown in Figure d. Two peaks at 55.2 and 54.4 eV are attributed to Se 3d 3/2 and Se 3d 5/2 , respectively, confirming the existence of Se 2 . − The peak at 55.95 eV is related to Se-Se, which may originate from excessive Se powder.…”

Section: Resultsmentioning

confidence: 85%

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Zan

Chen

et al. 2023

Ind. Eng. Chem. Res.

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Hollow and hierarchical structures are the desirable features for high-performance electromagnetic wave absorbing (EWA) materials. In this study, Co microchains were used as a matrix and a layer of MoSe 2 nanosheets and nanospheres was loaded onto their surface through a one-step hydrothermal reaction. During this process, Co cations migrated from the inside to the outside of the nanowire and combined with Se anions to form hollow Co 0.85 Se microchains and the MoSe 2 on the surface contributed to a hierarchical structure. The prepared Co 0.85 Se@ MoSe 2 composites showed dielectric and magnetic losses simultaneously, achieving a minimum reflection loss (RL min ) of −42.6 dB and an effective absorbing bandwidth (EAB) of 10 GHz (6.8−10.6 and 11.8−18 GHz) at the thickness of 2.3 mm. Co 0.85 Se@MoSe 2 microchains were successfully synthesized for the first time using a cost-effective and simple solvothermal reaction. This work sheds light on the large-scale synthesis of Co-based microchains as well as a promising EWA material with a specific structure and multiple loss modes.

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Section: Resultsmentioning

confidence: 85%

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Zan

Chen

et al. 2023

Ind. Eng. Chem. Res.

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“…The microwave absorption of samples was investigated by transmission line theory. [83][84][85][86][87] As indicated, the strong maximum RL of ZnS/gypsum plaster is 140.15 dB at 13.20 GHz, gaining efficient bandwidth (RL > 10 dB) as wide as 5.10 GHz with 1.90 mm in thickness. Interestingly, the ZnS/DGCN 75/gypsum plaster attained a marvelous efficient bandwidth of 6.82 GHz (RL > 10 dB) and a maximum RL of 53.13 dB at 14.10 GHz with the same thickness.…”

Section: Microwave-absorbing Performancementioning

confidence: 99%

Fabrication of ZnS/g‐C₃N₄/Gypsum Plaster Nanocomposite Toward Refining Electromagnetic Pollution and Saving Energy

Peymanfar,

Mousivand,

Mirkhan

2023

Energy Tech

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Global concerns have been excited by burgeoning electromagnetic pollution and climate change. Paying attention to building materials is one of the best ways to refine electromagnetic pollution and save energy. Herein, a practical nanocomposite has been introduced that not only absorbs microwaves, but also plays a significant role in energy‐saving. Interestingly, the approach related to the selection of a simple experimental procedure, cost‐effective substrates, and building matrix develops the practical applications of the eventual product. Initially, graphite‐like carbon nitride (g‐C3N4) nanosheets are tailored using a conventional sintering route, and then the prepared nanosheets are ornamented by zinc sulfide (ZnS) nanoparticles through a facile hydrothermal scenario. Remarkably, the microwave and optical features of the tailored ZnS/g‐C3N4 nanocomposite are modulated by regulating the mass fraction of ZnS into 2D structures. Interestingly, a novel defecting agent is used to boost the dielectric characteristics of g‐C3N4 through an innovative complementary hydrothermal and combustion scenario. Eventually, the architected structures are blended with gypsum plaster to evaluate energy‐saving and microwave‐absorbing performance. The nanocomposites fabricated by ZnS/defected g‐C3N4/gypsum plaster as building materials have significant microwave‐absorbing and infrared reflection capacity. The presented research opens a new vista for simultaneous development of advanced functional materials for energy‐saving and microwave absorption.

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“…This combination of properties enhances its potential for various applications. [21,22] Nevertheless, there are limitations to its usage primarily because of its restricted absorption bandwidth and impedance mismatching. It is worth noting that MnFe 2 O 4 demonstrates remarkable properties in terms of electromagnetic wave absorption when combined with other dielectric materials, thus providing inspiration for further exploration.…”

Section: Introductionmentioning

confidence: 99%

Flexible PVA/Mn Ferrite/(MoS₂)_x Nanocomposites With Electromagnetic Wave Absorption Performance for Light Dependent Resistances

Gholipur,

Tofangchi

2024

ChemistrySelect

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The presence of electromagnetic pollution not only poses a threat to human health but also disrupts the proper functioning of large‐scale machinery. In light of this, a novel method involving sol–gel techniques was utilized to synthesize PVA/Mn Ferrite/(MoS2)x nanocomposites, which exhibit remarkable electromagnetic wave absorption properties. By intelligently combining MoS2 with PVA/Mn Ferrite, the composite's electromagnetic parameters were optimized, leading to enhanced impedance matching. As a result, the PVA/Mn Ferrite/(MoS2)x nanocomposites showcased an exceptional minimum reflection loss of −15.971 dB at a thickness of 1 mm. The remarkable capability of absorbing substances can primarily be attributed to the outstanding synergistic interaction between PVA/Mn Ferrite and MoS2. Additionally, MoS2 also plays a significant role in generating dielectric loss and achieving ideal impedance matching. As a result, the potential applications of PVA/Mn Ferrite/(MoS2)x nanocomposites extend to serving as both absorption materials and light dependent resistance (LDR) sensors. These nanocomposites exhibit not only high efficiency but also possess the added advantages of flexibility and lightweight properties, further enhancing their desirability.

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Modulation of MoSe2 & MnFe2O4@MnO2 nano-architectures for microwave absorption properties via single- and bilayer method

Cited by 23 publications

References 43 publications

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Fabrication of ZnS/g‐C₃N₄/Gypsum Plaster Nanocomposite Toward Refining Electromagnetic Pollution and Saving Energy

Flexible PVA/Mn Ferrite/(MoS₂)_x Nanocomposites With Electromagnetic Wave Absorption Performance for Light Dependent Resistances

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Modulation of MoSe2 & MnFe2O4@MnO2 nano-architectures for microwave absorption properties via single- and bilayer method

Cited by 23 publications

References 43 publications

Hollow Co0.85Se@MoSe2 with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co0.85Se@MoSe2 with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Fabrication of ZnS/g‐C3N4/Gypsum Plaster Nanocomposite Toward Refining Electromagnetic Pollution and Saving Energy

Flexible PVA/Mn Ferrite/(MoS2)x Nanocomposites With Electromagnetic Wave Absorption Performance for Light Dependent Resistances

Contact Info

Product

Resources

About

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Hollow Co_0.85Se@MoSe₂ with Core–Sheath Structures Derived from Co Microchains for High Efficiency Electromagnetic Wave Absorption

Fabrication of ZnS/g‐C₃N₄/Gypsum Plaster Nanocomposite Toward Refining Electromagnetic Pollution and Saving Energy

Flexible PVA/Mn Ferrite/(MoS₂)_x Nanocomposites With Electromagnetic Wave Absorption Performance for Light Dependent Resistances