Layered double hydroxide (LDH) – MXene Nanocomposite for Electrocatalytic Water Splitting: Current status and Perspective

Udayakumar, Anandajayarajan; Dhandapani, Preethi; Ramasamy, S.; Angaiah, Subramania

doi:10.30919/esee901

Cited by 3 publications

(3 citation statements)

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“…In terms of EMI shielding, MXene, a two-dimensional structural material with high electrical conductivity, has been widely studied [21][22][23]. However, poor mechanical, chemical and thermal stability greatly limits its application range [24].…”

Section: Introductionmentioning

confidence: 99%

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

Han,

Niu,

Shi

et al. 2024

Nano-Micro Lett.

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A lightweight flexible thermally stable composite is fabricated by combining silica nanofiber membranes (SNM) with MXene@c-MWCNT hybrid film. The flexible SNM with outstanding thermal insulation are prepared from tetraethyl orthosilicate hydrolysis and condensation by electrospinning and high-temperature calcination; the MXene@c-MWCNTx:y films are prepared by vacuum filtration technology. In particular, the SNM and MXene@c-MWCNT6:4 as one unit layer (SMC1) are bonded together with 5 wt% polyvinyl alcohol (PVA) solution, which exhibits low thermal conductivity (0.066 W m−1 K−1) and good electromagnetic interference (EMI) shielding performance (average EMI SET, 37.8 dB). With the increase in functional unit layer, the overall thermal insulation performance of the whole composite film (SMCx) remains stable, and EMI shielding performance is greatly improved, especially for SMC3 with three unit layers, the average EMI SET is as high as 55.4 dB. In addition, the organic combination of rigid SNM and tough MXene@c-MWCNT6:4 makes SMCx exhibit good mechanical tensile strength. Importantly, SMCx exhibit stable EMI shielding and excellent thermal insulation even in extreme heat and cold environment. Therefore, this work provides a novel design idea and important reference value for EMI shielding and thermal insulation components used in extreme environmental protection equipment in the future.

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Section: Introductionmentioning

confidence: 99%

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

Han,

Niu,

Shi

et al. 2024

Nano-Micro Lett.

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“…A relatively large specific surface area is exhibited. 25 Among them, transition metal-based LDHs materials are prevalent because transition metals have environmental protection, as well as excellent redox and multivalent properties. 26 In addition, the morphology of LDHs has a direct impact on their electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

In situ coupled nickel-based layered double hydroxides with MXene to enhance supercapacitor performance

2023

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“…[14][15][16][17][18] Meanwhile, 2D-type MA materials (MXenes, metal-organic frameworks, and metal sulfides) enhance the polarization loss of MA materials to improve their microwave attenuation ability, because their unique layered structure, functional groups, and defects on the surface are helpful in the multireflection and scattering of microwaves. [19][20][21][22][23][24][25] Besides, the impedance matching between materials and open space is strengthened by 3Dtype MA materials with specific structures, thus introducing much more microwaves into the materials and providing space for the reflection and scattering of microwaves. Therefore, the above two aspects are combined to obtain high-efficiency microwave absorbers by constructing 3D structures containing 1D and 2D MA composites.…”

Section: Introductionmentioning

confidence: 99%

Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

Hu,

Zhou,

2023

Polymers for Advanced Techs

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Carbon fiber (CF) has been extensively used in the research of microwave absorption owning to its excellent performance, but it also faces a series of problems such as impedance mismatch and low absorption intensity. The core‐sheath microstructure with CF as the inner core is constructed to solve the above issues by the introduction of other sheath layers. In this work, the MoS2 sheath and polyaniline (PANI) sheath are successively introduced into the CF matrix to obtain a hierarchical CF@MoS2@PANI nanocomposite with core‐sheath structure through a straightforward hydrothermal method and in‐situ polymerization. The obtained CF@MoS2@PANI nanocomposite exhibit the minimum reflection loss value of −42.23 dB at 10.11 GHz while the thickness is 2.5 mm, much higher than those of pure CF (below −10 dB) and CF@MoS2 nanocomposite (−25.60 dB). Moreover, the distinctive hierarchical core‐sheath structure contributes to providing more active sites, prolonging the transmission path of electromagnetic waves, and forming heterogeneous interfaces. Consequently, the electromagnetic wave attenuation mechanism of CF@MoS2@PANI nanocomposite is attributed to a synergistic effect of conductive loss, multiple reflection/scattering, dipole polarization, and interface polarization. This work offers an effective and promising strategy to design a three‐dimensional hierarchical core‐sheath microstructure for the development of composite absorbers.

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Layered double hydroxide (LDH) – MXene Nanocomposite for Electrocatalytic Water Splitting: Current status and Perspective

Cited by 3 publications

References 0 publications

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

In situ coupled nickel-based layered double hydroxides with MXene to enhance supercapacitor performance

Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

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Layered double hydroxide (LDH) – MXene Nanocomposite for Electrocatalytic Water Splitting: Current status and Perspective

Cited by 3 publications

References 0 publications

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

MXene@c-MWCNT Adhesive Silica Nanofiber Membranes Enhancing Electromagnetic Interference Shielding and Thermal Insulation Performance in Extreme Environments

In situ coupled nickel-based layered double hydroxides with MXene to enhance supercapacitor performance

Impedance matching optimization of hierarchical carbon fiber@MoS2@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

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Product

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Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption